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_cursor.h"
  42 #include "math_factory.h"
  43 #include "math_hullinset.h"
  44 #include "math_iterator.h"
  45 #include "math_macrotable.h"
  46 #include "math_parser.h"
  47 #include "math_pos.h"
  48 #include "math_spaceinset.h"
  49 #include "undo_funcs.h"
  50 #include "textpainter.h"
  51 #include "frontends/Dialogs.h"
  52 #include "intl.h"
  53
  54 using std::endl;
  55 using std::ostream;
  56 using std::vector;
  57
  58 MathCursor * mathcursor = 0;
  59
  60
  61 namespace {
  62
  63
  64 // local global
  65 int first_x;
  66 int first_y;
  67 int hack_x;
  68 int hack_y;
  69 int hack_button;
  70
  71
  72 void handleFont(BufferView * bv, string const & arg, MathTextCodes t)
  73 {
  74         if (mathcursor->selection())
  75                 bv->lockedInsetStoreUndo(Undo::EDIT);
  76         mathcursor->handleFont(t);
  77         for (string::const_iterator it = arg.begin(); it != arg.end(); ++it)
  78                 mathcursor->insert(*it);
  79 }
  80
  81
  82 bool openNewInset(BufferView * bv, UpdatableInset * new_inset)
  83 {
  84         if (!bv->insertInset(new_inset)) {
  85                 delete new_inset;
  86                 return false;
  87         }
  88         new_inset->edit(bv, 0, 0, 0);
  89         return true;
  90 }
  91
  92
  93 } // namespace anon
  94
  95
  96
  97 InsetFormulaBase::InsetFormulaBase()
  98         : view_(0), font_(), xo_(0), yo_(0)
  99 {
 100         // This is needed as long the math parser is not re-entrant
 101         MathMacroTable::builtinMacros();
 102         //lyxerr << "sizeof MathInset: " << sizeof(MathInset) << "\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
 160         //lyxerr << "edit: " << x  << " " << y << " button: " << button << "\n";
 161         if (!mathcursor) {
 162                 mathcursor = new MathCursor(this, x == 0);
 163                 metrics(bv);
 164                 // handle ignored click
 165                 if (hack_x || hack_y) {
 166                         insetButtonPress(bv, hack_x, hack_y, hack_button);
 167                         hack_x = hack_y = 0;
 168                 }
 169         } else
 170                 metrics(bv);
 171         // if that is removed, we won't get the magenta box when entering an
 172         // inset for the first time
 173         bv->updateInset(this, false);
 174 }
 175
 176
 177 void InsetFormulaBase::edit(BufferView * bv, bool front)
 178 {
 179         // looks hackish but seems to work
 180         edit(bv, front ? 0 : 1, 0, 0);
 181 }
 182
 183
 184 void InsetFormulaBase::insetUnlock(BufferView * bv)
 185 {
 186         if (mathcursor) {
 187                 if (mathcursor->inMacroMode()) {
 188                         mathcursor->macroModeClose();
 189                         updateLocal(bv, true);
 190                 }
 191                 delete mathcursor;
 192                 mathcursor = 0;
 193         }
 194         bv->updateInset(this, false);
 195 }
 196
 197
 198 void InsetFormulaBase::getCursorPos(BufferView *, int & x, int & y) const
 199 {
 200         mathcursor->getPos(x, y);
 201         x += xo_;
 202         y += yo_;
 203         //lyxerr << "getCursorPos: " << x << " " << y << "\n";
 204 }
 205
 206
 207 void InsetFormulaBase::toggleInsetCursor(BufferView * bv)
 208 {
 209         if (!mathcursor)
 210                 return;
 211
 212         if (isCursorVisible())
 213                 bv->hideLockedInsetCursor();
 214         else {
 215                 metrics(bv);
 216                 int x;
 217                 int y;
 218                 mathcursor->getPos(x, y);
 219                 y -= yo_;
 220                 int asc = 0;
 221                 int des = 0;
 222                 MathMetricsInfo mi(bv, font_, display() ? LM_ST_DISPLAY : LM_ST_TEXT);
 223                 math_font_max_dim(LM_TC_TEXTRM, mi, asc, des);
 224                 bv->showLockedInsetCursor(x, y, asc, des);
 225                 //lyxerr << "toggleInsetCursor: " << x << " " << y << "\n";
 226         }
 227
 228         toggleCursorVisible();
 229 }
 230
 231
 232 void InsetFormulaBase::showInsetCursor(BufferView * bv, bool)
 233 {
 234         if (isCursorVisible())
 235                 return;
 236         if (mathcursor) {
 237                 metrics(bv);
 238                 int x;
 239                 int y;
 240                 mathcursor->getPos(x, y);
 241                 y -= yo_;
 242                 int asc = 0;
 243                 int des = 0;
 244                 MathMetricsInfo mi(bv, font_, display() ? LM_ST_DISPLAY : LM_ST_TEXT);
 245                 math_font_max_dim(LM_TC_TEXTRM, mi, asc, des);
 246                 bv->fitLockedInsetCursor(x, y, asc, des);
 247                 //lyxerr << "showInsetCursor: x: " << x << " y: " << y << " yo: " << yo_ << "\n";
 248         }
 249         toggleInsetCursor(bv);
 250 }
 251
 252
 253 void InsetFormulaBase::hideInsetCursor(BufferView * bv)
 254 {
 255         if (isCursorVisible())
 256                 toggleInsetCursor(bv);
 257 }
 258
 259
 260 void InsetFormulaBase::toggleInsetSelection(BufferView * bv)
 261 {
 262         if (mathcursor)
 263                 bv->updateInset(this, false);
 264 }
 265
 266
 267 vector<string> const InsetFormulaBase::getLabelList() const
 268 {
 269   return vector<string>();
 270 }
 271
 272
 273 void InsetFormulaBase::updateLocal(BufferView * bv, bool dirty)
 274 {
 275         metrics(bv);
 276         bv->updateInset(this, dirty);
 277 }
 278
 279
 280 bool InsetFormulaBase::insetButtonRelease(BufferView * bv,
 281                                           int /*x*/, int /*y*/, int /*button*/)
 282 {
 283         if (!mathcursor)
 284                 return false;
 285         //lyxerr << "insetButtonRelease: " << x << " " << y << "\n";
 286         hideInsetCursor(bv);
 287         showInsetCursor(bv);
 288         bv->updateInset(this, false);
 289         return false;
 290 }
 291
 292
 293 void InsetFormulaBase::insetButtonPress(BufferView * bv,
 294                                         int x, int y, int button)
 295 {
 296         // hack to cope with mouseclick that comes before the call to edit()
 297         if (!mathcursor) {
 298                 hack_x = x;
 299                 hack_y = y;
 300                 hack_button = button;
 301                 return;
 302         }
 303
 304         lyxerr << "insetButtonPress: " << x + xo_ << " " << y + yo_
 305                 << " but: " << button << "\n";
 306         switch (button) {
 307                 default:
 308                 case 1:
 309                         // just click
 310                         first_x = x;
 311                         first_y = y;
 312                         if (mathcursor) {
 313                                 mathcursor->selClear();
 314                                 mathcursor->setPos(x + xo_, y + yo_);
 315                         }
 316                         break;
 317 /*
 318                 case 2:
 319                         lyxerr << "insetButtonPress: 2\n";
 320                         // insert stuff
 321                         if (mathcursor) {
 322                                 bv->lockedInsetStoreUndo(Undo::EDIT);
 323                                 MathArray ar;
 324                                 mathcursor->selGet(ar);
 325                                 mathcursor->setPos(x + xo_, y + yo_);
 326                                 string sel =
 327                                         bv->getLyXText()->selectionAsString(bv->buffer(), false);
 328                                 mathed_parse_cell(ar, sel);
 329                                 mathcursor->insert(ar);
 330                         }
 331                         break;
 332 */
 333                 case 3:
 334                         // launch math panel for right mouse button
 335                         bv->owner()->getDialogs()->showMathPanel();
 336                         break;
 337         }
 338         bv->updateInset(this, false);
 339 }
 340
 341
 342 void InsetFormulaBase::insetMotionNotify(BufferView * bv,
 343                                          int x, int y, int /*button*/)
 344 {
 345         if (!mathcursor)
 346                 return;
 347
 348         if (abs(x - first_x) < 2 && abs(y - first_y) < 2) {
 349                 //lyxerr << "insetMotionNotify: ignored\n";
 350                 return;
 351         }
 352         first_x = x;
 353         first_y = y;
 354
 355         if (!mathcursor->selection())
 356                 mathcursor->selStart();
 357
 358         //lyxerr << "insetMotionNotify: " << x + xo_ << ' ' << y + yo_
 359         //      << ' ' << button << "\n";
 360         hideInsetCursor(bv);
 361         mathcursor->setPos(x + xo_, y + yo_);
 362         showInsetCursor(bv);
 363         bv->updateInset(this, false);
 364 }
 365
 366
 367 void InsetFormulaBase::insetKeyPress(XKeyEvent *)
 368 {
 369         lyxerr[Debug::MATHED] << "Used InsetFormulaBase::InsetKeyPress." << endl;
 370 }
 371
 372
 373 UpdatableInset::RESULT
 374 InsetFormulaBase::localDispatch(BufferView * bv, kb_action action,
 375                             string const & arg)
 376 {
 377         //lyxerr << "InsetFormulaBase::localDispatch: act: " << action
 378         //      << " arg: '" << arg << "' cursor: " << mathcursor << "\n";
 379
 380         if (!mathcursor)
 381                 return UNDISPATCHED;
 382
 383         if (mathcursor->asHyperActiveInset()) {
 384                 lyxerr << " uurr.... getting dificult now\n";
 385                 return mathcursor->asHyperActiveInset()->localDispatch(bv, action, arg);
 386         }
 387
 388         RESULT result      = DISPATCHED;
 389         bool sel           = false;
 390         bool was_macro     = mathcursor->inMacroMode();
 391         bool was_selection = mathcursor->selection();
 392
 393         hideInsetCursor(bv);
 394
 395         mathcursor->normalize();
 396         mathcursor->touch();
 397
 398         switch (action) {
 399
 400                 // --- Cursor Movements ---------------------------------------------
 401
 402         case LFUN_RIGHTSEL:
 403                 sel = true; // fall through...
 404
 405         case LFUN_RIGHT:
 406                 result = mathcursor->right(sel) ? DISPATCHED : FINISHED_RIGHT;
 407                 //lyxerr << "calling scroll 20\n";
 408                 //scroll(bv, 20);
 409                 updateLocal(bv, false);
 410                 // write something to the minibuffer
 411                 //bv->owner()->message(mathcursor->info());
 412                 break;
 413
 414
 415         case LFUN_LEFTSEL:
 416                 sel = true; // fall through
 417
 418         case LFUN_LEFT:
 419                 result = mathcursor->left(sel) ? DISPATCHED : FINISHED;
 420                 updateLocal(bv, false);
 421                 break;
 422
 423
 424         case LFUN_UPSEL:
 425                 sel = true;
 426
 427         case LFUN_UP:
 428                 result = mathcursor->up(sel) ? DISPATCHED : FINISHED_UP;
 429                 updateLocal(bv, false);
 430                 break;
 431
 432
 433         case LFUN_DOWNSEL:
 434                 sel = true;
 435
 436         case LFUN_DOWN:
 437                 result = mathcursor->down(sel) ? DISPATCHED : FINISHED_DOWN;
 438                 updateLocal(bv, false);
 439                 break;
 440
 441         case LFUN_HOMESEL:
 442                 sel = true;
 443
 444         case LFUN_HOME:
 445                 mathcursor->home(sel);
 446                 updateLocal(bv, false);
 447                 break;
 448
 449         case LFUN_ENDSEL:
 450                 sel = true;
 451
 452         case LFUN_END:
 453                 mathcursor->end(sel);
 454                 updateLocal(bv, false);
 455                 break;
 456
 457         case LFUN_DELETE_LINE_FORWARD:
 458                 bv->lockedInsetStoreUndo(Undo::DELETE);
 459                 mathcursor->delLine();
 460                 updateLocal(bv, true);
 461                 break;
 462
 463         case LFUN_TAB:
 464                 if (0) {
 465                         TextMetricsInfo mi;
 466                         par()->metrics(mi);
 467                         TextPainter tpain(par()->width(), par()->height());
 468                         par()->draw(tpain, 0, par()->ascent());
 469                 }
 470                 mathcursor->idxNext();
 471                 updateLocal(bv, false);
 472                 break;
 473
 474         case LFUN_SHIFT_TAB:
 475                 mathcursor->idxPrev();
 476                 updateLocal(bv, false);
 477                 break;
 478
 479         case LFUN_TABINSERT:
 480                 bv->lockedInsetStoreUndo(Undo::EDIT);
 481                 mathcursor->splitCell();
 482                 updateLocal(bv, true);
 483                 break;
 484
 485         case LFUN_DELETE_WORD_BACKWARD:
 486         case LFUN_BACKSPACE:
 487                 bv->lockedInsetStoreUndo(Undo::DELETE);
 488                 mathcursor->backspace();
 489                 bv->updateInset(this, true);
 490                 break;
 491
 492         case LFUN_DELETE_WORD_FORWARD:
 493         case LFUN_DELETE:
 494                 bv->lockedInsetStoreUndo(Undo::DELETE);
 495                 mathcursor->erase();
 496                 bv->updateInset(this, true);
 497                 break;
 498
 499         //    case LFUN_GETXY:
 500         //      sprintf(dispatch_buffer, "%d %d",);
 501         //      dispatch_result = dispatch_buffer;
 502         //      break;
 503         case LFUN_SETXY: {
 504                 lyxerr << "LFUN_SETXY broken!\n";
 505                 int x = 0;
 506                 int y = 0;
 507                 istringstream is(arg.c_str());
 508                 is >> x >> y;
 509                 mathcursor->setPos(x, y);
 510                 updateLocal(bv, false);
 511                 break;
 512         }
 513
 514         case LFUN_PASTE:
 515                 if (was_macro)
 516                         mathcursor->macroModeClose();
 517                 bv->lockedInsetStoreUndo(Undo::EDIT);
 518                 mathcursor->selPaste();
 519                 updateLocal(bv, true);
 520                 break;
 521
 522         case LFUN_CUT:
 523                 bv->lockedInsetStoreUndo(Undo::DELETE);
 524                 mathcursor->selCut();
 525                 updateLocal(bv, true);
 526                 break;
 527
 528         case LFUN_COPY:
 529                 mathcursor->selCopy();
 530                 break;
 531
 532         case LFUN_WORDRIGHTSEL:
 533         case LFUN_WORDLEFTSEL:
 534                 break;
 535
 536         // Special casing for superscript in case of LyX handling
 537         // dead-keys:
 538         case LFUN_CIRCUMFLEX:
 539                 if (arg.empty()) {
 540                         // do superscript if LyX handles
 541                         // deadkeys
 542                         bv->lockedInsetStoreUndo(Undo::EDIT);
 543                         mathcursor->script(true);
 544                         updateLocal(bv, true);
 545                 }
 546                 break;
 547         case LFUN_UMLAUT:
 548         case LFUN_ACUTE:
 549         case LFUN_GRAVE:
 550         case LFUN_BREVE:
 551         case LFUN_DOT:
 552         case LFUN_MACRON:
 553         case LFUN_CARON:
 554         case LFUN_TILDE:
 555         case LFUN_CEDILLA:
 556         case LFUN_CIRCLE:
 557         case LFUN_UNDERDOT:
 558         case LFUN_TIE:
 559         case LFUN_OGONEK:
 560         case LFUN_HUNG_UMLAUT:
 561                 break;
 562
 563         //  Math fonts
 564         case LFUN_GREEK_TOGGLE: handleFont(bv, arg, LM_TC_GREEK); break;
 565         case LFUN_BOLD:         handleFont(bv, arg, LM_TC_BF); break;
 566         case LFUN_SANS:         handleFont(bv, arg, LM_TC_SF); break;
 567         case LFUN_EMPH:         handleFont(bv, arg, LM_TC_CAL); break;
 568         case LFUN_ROMAN:        handleFont(bv, arg, LM_TC_RM); break;
 569         case LFUN_CODE:         handleFont(bv, arg, LM_TC_TT); break;
 570         case LFUN_FRAK:         handleFont(bv, arg, LM_TC_EUFRAK); break;
 571         case LFUN_ITAL:         handleFont(bv, arg, LM_TC_IT); break;
 572         case LFUN_NOUN:         handleFont(bv, arg, LM_TC_BB); break;
 573         case LFUN_DEFAULT:      handleFont(bv, arg, LM_TC_VAR); break;
 574         case LFUN_FREE:         handleFont(bv, arg, LM_TC_TEXTRM); break;
 575
 576         case LFUN_GREEK:
 577                 handleFont(bv, arg, LM_TC_GREEK1);
 578                 if (arg.size())
 579                         mathcursor->interpret(arg);
 580                 break;
 581
 582         case LFUN_MATH_MODE:
 583 #if 1
 584                 handleFont(bv, arg, LM_TC_TEXTRM);
 585 #endif
 586
 587 #if 0
 588                 mathcursor->niceInsert(MathAtom(new MathHullInset(LM_OT_SIMPLE)));
 589                 updateLocal(bv, true);
 590 #endif
 591
 592                 //bv->owner()->message(_("math text mode toggled"));
 593                 break;
 594
 595         case LFUN_MATH_LIMITS:
 596                 bv->lockedInsetStoreUndo(Undo::EDIT);
 597                 if (mathcursor->toggleLimits())
 598                         updateLocal(bv, true);
 599                 break;
 600
 601         case LFUN_MATH_SIZE:
 602 #if 0
 603                 if (!arg.empty()) {
 604                         bv->lockedInsetStoreUndo(Undo::EDIT);
 605                         mathcursor->setSize(arg);
 606                         updateLocal(bv, true);
 607                 }
 608 #endif
 609                 break;
 610
 611         case LFUN_INSERT_MATRIX:
 612                 if (!arg.empty()) {
 613                         bv->lockedInsetStoreUndo(Undo::EDIT);
 614                         mathcursor->interpret("matrix " + arg);
 615                         updateLocal(bv, true);
 616                 }
 617                 break;
 618
 619         case LFUN_MATH_SPACE:
 620         {
 621                 bv->lockedInsetStoreUndo(Undo::EDIT);
 622                 mathcursor->insert(MathAtom(new MathSpaceInset(1)));
 623                 updateLocal(bv, true);
 624                 break;
 625         }
 626
 627         case LFUN_SUPERSCRIPT:
 628         case LFUN_SUBSCRIPT:
 629         {
 630                 bv->lockedInsetStoreUndo(Undo::EDIT);
 631                 mathcursor->script((action == LFUN_SUPERSCRIPT));
 632                 updateLocal(bv, true);
 633                 break;
 634         }
 635
 636         case LFUN_MATH_DELIM:
 637         {
 638                 lyxerr << "formulabase::LFUN_MATH_DELIM, arg: '" << arg << "'\n";
 639                 string ls;
 640                 string rs;
 641                 istringstream is(arg.c_str());
 642                 is >> ls >> rs;
 643                 if (!is) {
 644                         lyxerr << "can't parse delimeters from '" << arg << "'\n";
 645                         break;
 646                 }
 647                 bv->lockedInsetStoreUndo(Undo::EDIT);
 648                 mathcursor->handleDelim(ls, rs);
 649                 updateLocal(bv, true);
 650                 break;
 651         }
 652
 653         case LFUN_PROTECTEDSPACE:
 654                 //lyxerr << " called LFUN_PROTECTEDSPACE\n";
 655                 bv->lockedInsetStoreUndo(Undo::EDIT);
 656                 mathcursor->insert(MathAtom(new MathSpaceInset(1)));
 657                 updateLocal(bv, true);
 658                 break;
 659
 660         case LFUN_UNDO:
 661                 bv->owner()->message(_("Invalid action in math mode!"));
 662                 break;
 663
 664
 665         case LFUN_MATH_HALIGN:
 666         case LFUN_MATH_VALIGN:
 667         case LFUN_MATH_ROW_INSERT:
 668         case LFUN_MATH_ROW_DELETE:
 669         case LFUN_MATH_COLUMN_INSERT:
 670         case LFUN_MATH_COLUMN_DELETE:
 671         {
 672                 MathInset::idx_type idx = 0;
 673                 MathGridInset * p = mathcursor ? mathcursor->enclosingGrid(idx) : 0;
 674                 if (p) {
 675                         bv->lockedInsetStoreUndo(Undo::EDIT);
 676                         char al = arg.size() ? arg[0] : 'c';
 677                         switch (action) {
 678                                 case LFUN_MATH_HALIGN: p->halign(al, p->col(idx)); break;
 679                                 case LFUN_MATH_VALIGN: p->valign(al); break;
 680                                 case LFUN_MATH_ROW_INSERT: p->addRow(p->row(idx)); break;
 681                                 case LFUN_MATH_ROW_DELETE: p->delRow(p->row(idx)); break;
 682                                 case LFUN_MATH_COLUMN_INSERT: p->addCol(p->col(idx)); break;
 683                                 case LFUN_MATH_COLUMN_DELETE: p->delCol(p->col(idx)); break;
 684                                 default: ;
 685                         }
 686                         updateLocal(bv, true);
 687                 }
 688                 break;
 689         }
 690
 691         case LFUN_EXEC_COMMAND:
 692                 result = UNDISPATCHED;
 693                 break;
 694
 695         case LFUN_BREAKPARAGRAPH:
 696         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
 697                 //lyxerr << "LFUN ignored\n";
 698                 break;
 699
 700         case LFUN_INSET_ERT:
 701                 // interpret this as if a backslash was typed
 702                 bv->lockedInsetStoreUndo(Undo::EDIT);
 703                 mathcursor->interpret("\\");
 704                 updateLocal(bv, true);
 705                 break;
 706
 707         case -1:
 708         case LFUN_INSERT_MATH:
 709         case LFUN_SELFINSERT:
 710                 if (!arg.empty()) {
 711                         bv->lockedInsetStoreUndo(Undo::EDIT);
 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                                 f = new InsetFormula(sel);
 903                         else {
 904                                 string name;
 905                                 if (!mathed_parse_macro(name, sel))
 906                                         return;
 907                                 f = new InsetFormulaMacro(sel);
 908                         }
 909                         bv->getLyXText()->cutSelection(bv);
 910                         openNewInset(bv, f);
 911                 }
 912         }
 913         bv->owner()->getLyXFunc()->setMessage(N_("Math editor mode"));
 914 }
 915
 916
 917 void mathDispatchMathDisplay(BufferView * bv, string const & arg)
 918 {
 919         mathDispatchCreation(bv, arg, true);
 920 }
 921
 922
 923 void mathDispatchMathMode(BufferView * bv, string const & arg)
 924 {
 925         mathDispatchCreation(bv, arg, false);
 926 }
 927
 928
 929 void mathDispatchMathImportSelection(BufferView * bv, string const & arg)
 930 {
 931         mathDispatchCreation(bv, arg, true);
 932 }
 933
 934
 935 void mathDispatchMathMacro(BufferView * bv, string const & arg)
 936 {
 937         if (bv->available()) {
 938                 if (arg.empty())
 939                         bv->owner()->getLyXFunc()->setErrorMessage(N_("Missing argument"));
 940                 else {
 941                         string s(arg);
 942                         string const s1 = token(s, ' ', 1);
 943                         int const na = s1.empty() ? 0 : lyx::atoi(s1);
 944                         openNewInset(bv, new InsetFormulaMacro(token(s, ' ', 0), na));
 945                 }
 946         }
 947 }
 948
 949
 950 void mathDispatchMathDelim(BufferView * bv, string const & arg)
 951 {
 952         if (bv->available()) {
 953                 if (openNewInset(bv, new InsetFormula))
 954                         bv->theLockingInset()->localDispatch(bv, LFUN_MATH_DELIM, arg);
 955         }
 956 }
 957
 958
 959 void mathDispatchInsertMatrix(BufferView * bv, string const & arg)
 960 {
 961         if (bv->available()) {
 962                 if (openNewInset(bv, new InsetFormula))
 963                         bv->theLockingInset()->localDispatch(bv, LFUN_INSERT_MATRIX, arg);
 964         }
 965 }
 966
 967
 968 void mathDispatchInsertMath(BufferView * bv, string const & arg)
 969 {
 970         if (bv->available()) {
 971                 if (arg.size() && arg[0] == '\\') {
 972                         InsetFormula * f = new InsetFormula(arg);
 973                         if (!bv->insertInset(f))
 974                                 delete f;
 975                 } else
 976                         mathDispatchMathMode(bv, arg);
 977         }
 978 }
 979
 980
 981 void mathDispatchGreek(BufferView * bv, string const & arg)
 982 {
 983         if (bv->available()) {
 984                 InsetFormula * f = new InsetFormula;
 985                 if (openNewInset(bv, f)) {
 986                         bv->theLockingInset()->localDispatch(bv, LFUN_GREEK, arg);
 987                         bv->unlockInset(f);
 988                 }
 989         }
 990 }
 991
 992
 993 void mathDispatch(BufferView *, kb_action, string const &)
 994 {}