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 int hack_x;
  69 int hack_y;
  70 int hack_button;
  71
  72
  73 void handleFont(BufferView * bv, string const & arg, MathTextCodes t)
  74 {
  75         if (mathcursor->selection())
  76                 bv->lockedInsetStoreUndo(Undo::EDIT);
  77         mathcursor->handleFont(t);
  78         for (string::const_iterator it = arg.begin(); it != arg.end(); ++it)
  79                 mathcursor->insert(*it);
  80 }
  81
  82
  83 bool openNewInset(BufferView * bv, UpdatableInset * new_inset)
  84 {
  85         if (!bv->insertInset(new_inset)) {
  86                 delete new_inset;
  87                 return false;
  88         }
  89         new_inset->edit(bv, 0, 0, 0);
  90         return true;
  91 }
  92
  93
  94 } // namespace anon
  95
  96
  97
  98 InsetFormulaBase::InsetFormulaBase()
  99         : view_(0), font_(), xo_(0), yo_(0)
 100 {
 101         // This is needed as long the math parser is not re-entrant
 102         MathMacroTable::builtinMacros();
 103         //lyxerr << "sizeof MathInset: " << sizeof(MathInset) << "\n";
 104         //lyxerr << "sizeof(MathMetricsInfo): " << sizeof(MathMetricsInfo) << "\n";
 105         //lyxerr << "sizeof(MathCharInset): " << sizeof(MathCharInset) << "\n";
 106 }
 107
 108
 109 // simply scrap this function if you want
 110 void InsetFormulaBase::mutateToText()
 111 {
 112 #if 0
 113         // translate to latex
 114         ostringstream os;
 115         latex(NULL, os, false, false);
 116         string str = os.str();
 117
 118         // insert this text
 119         LyXText * lt = view_->getLyXText();
 120         string::const_iterator cit = str.begin();
 121         string::const_iterator end = str.end();
 122         for (; cit != end; ++cit)
 123                 view_->owner()->getIntl()->getTrans().TranslateAndInsert(*cit, lt);
 124
 125         // remove ourselves
 126         //view_->owner()->getLyXFunc()->dispatch(LFUN_ESCAPE);
 127 #endif
 128 }
 129
 130
 131 // Check if uses AMS macros
 132 void InsetFormulaBase::validate(LaTeXFeatures &) const
 133 {}
 134
 135
 136 void InsetFormulaBase::metrics(BufferView * bv, LyXFont const & f) const
 137 {
 138         font_ = f;
 139         metrics(bv);
 140 }
 141
 142
 143 void InsetFormulaBase::metrics(BufferView * bv) const
 144 {
 145         if (bv)
 146                 view_ = bv;
 147         MathMetricsInfo mi(view_, font_, display() ? LM_ST_DISPLAY : LM_ST_TEXT);
 148         par()->metrics(mi);
 149 }
 150
 151
 152 string const InsetFormulaBase::editMessage() const
 153 {
 154         return _("Math editor mode");
 155 }
 156
 157
 158 void InsetFormulaBase::edit(BufferView * bv, int x, int /*y*/, unsigned int)
 159 {
 160         if (!bv->lockInset(this))
 161                 lyxerr[Debug::MATHED] << "Cannot lock inset!!!" << endl;
 162
 163         //lyxerr << "edit: " << x  << " " << y << " button: " << button << "\n";
 164         if (!mathcursor) {
 165                 mathcursor = new MathCursor(this, x == 0);
 166                 metrics(bv);
 167                 // handle ignored click
 168                 if (hack_x || hack_y) {
 169                         insetButtonPress(bv, hack_x, hack_y, hack_button);
 170                         hack_x = hack_y = 0;
 171                 }
 172         } else
 173                 metrics(bv);
 174         // if that is removed, we won't get the magenta box when entering an
 175         // inset for the first time
 176         bv->updateInset(this, false);
 177 }
 178
 179
 180 void InsetFormulaBase::edit(BufferView * bv, bool front)
 181 {
 182         // looks hackish but seems to work
 183         edit(bv, front ? 0 : 1, 0, 0);
 184 }
 185
 186
 187 void InsetFormulaBase::insetUnlock(BufferView * bv)
 188 {
 189         if (mathcursor) {
 190                 if (mathcursor->inMacroMode()) {
 191                         mathcursor->macroModeClose();
 192                         updateLocal(bv, true);
 193                 }
 194                 delete mathcursor;
 195                 mathcursor = 0;
 196         }
 197         bv->updateInset(this, false);
 198 }
 199
 200
 201 void InsetFormulaBase::getCursorPos(BufferView *, int & x, int & y) const
 202 {
 203         mathcursor->getPos(x, y);
 204         x += xo_;
 205         y += yo_;
 206         //lyxerr << "getCursorPos: " << x << " " << y << "\n";
 207 }
 208
 209
 210 void InsetFormulaBase::toggleInsetCursor(BufferView * bv)
 211 {
 212         if (!mathcursor)
 213                 return;
 214
 215         if (isCursorVisible())
 216                 bv->hideLockedInsetCursor();
 217         else {
 218                 metrics(bv);
 219                 int x;
 220                 int y;
 221                 mathcursor->getPos(x, y);
 222                 y -= yo_;
 223                 int asc = 0;
 224                 int des = 0;
 225                 math_font_max_dim(font_, asc, des);
 226                 bv->showLockedInsetCursor(x, y, asc, des);
 227                 //lyxerr << "toggleInsetCursor: " << x << " " << y << "\n";
 228         }
 229
 230         toggleCursorVisible();
 231 }
 232
 233
 234 void InsetFormulaBase::showInsetCursor(BufferView * bv, bool)
 235 {
 236         if (isCursorVisible())
 237                 return;
 238         if (mathcursor) {
 239                 metrics(bv);
 240                 int x;
 241                 int y;
 242                 mathcursor->getPos(x, y);
 243                 y -= yo_;
 244                 int asc = 0;
 245                 int des = 0;
 246                 math_font_max_dim(font_, asc, des);
 247                 bv->fitLockedInsetCursor(x, y, asc, des);
 248                 //lyxerr << "showInsetCursor: x: " << x << " y: " << y << " yo: " << yo_ << "\n";
 249         }
 250         toggleInsetCursor(bv);
 251 }
 252
 253
 254 void InsetFormulaBase::hideInsetCursor(BufferView * bv)
 255 {
 256         if (isCursorVisible())
 257                 toggleInsetCursor(bv);
 258 }
 259
 260
 261 void InsetFormulaBase::toggleInsetSelection(BufferView * bv)
 262 {
 263         if (mathcursor)
 264                 bv->updateInset(this, false);
 265 }
 266
 267
 268 vector<string> const InsetFormulaBase::getLabelList() const
 269 {
 270   return vector<string>();
 271 }
 272
 273
 274 void InsetFormulaBase::updateLocal(BufferView * bv, bool dirty)
 275 {
 276         metrics(bv);
 277         bv->updateInset(this, dirty);
 278 }
 279
 280
 281 bool InsetFormulaBase::insetButtonRelease(BufferView * bv,
 282                                           int /*x*/, int /*y*/, int /*button*/)
 283 {
 284         if (!mathcursor)
 285                 return false;
 286         //lyxerr << "insetButtonRelease: " << x << " " << y << "\n";
 287         hideInsetCursor(bv);
 288         showInsetCursor(bv);
 289         bv->updateInset(this, false);
 290         return false;
 291 }
 292
 293
 294 void InsetFormulaBase::insetButtonPress(BufferView * bv,
 295                                         int x, int y, int button)
 296 {
 297         // hack to cope with mouseclick that comes before the call to edit()
 298         if (!mathcursor) {
 299                 hack_x = x;
 300                 hack_y = y;
 301                 hack_button = button;
 302                 return;
 303         }
 304
 305         lyxerr << "insetButtonPress: " << x + xo_ << " " << y + yo_
 306                 << " but: " << button << "\n";
 307         switch (button) {
 308                 default:
 309                 case 1:
 310                         // just click
 311                         first_x = x;
 312                         first_y = y;
 313                         if (mathcursor) {
 314                                 mathcursor->selClear();
 315                                 mathcursor->setPos(x + xo_, y + yo_);
 316                         }
 317                         break;
 318 /*
 319                 case 2:
 320                         lyxerr << "insetButtonPress: 2\n";
 321                         // insert stuff
 322                         if (mathcursor) {
 323                                 bv->lockedInsetStoreUndo(Undo::EDIT);
 324                                 MathArray ar;
 325                                 mathcursor->selGet(ar);
 326                                 mathcursor->setPos(x + xo_, y + yo_);
 327                                 string sel =
 328                                         bv->getLyXText()->selectionAsString(bv->buffer(), false);
 329                                 mathed_parse_cell(ar, sel);
 330                                 mathcursor->insert(ar);
 331                         }
 332                         break;
 333 */
 334                 case 3:
 335                         // launch math panel for right mouse button
 336                         bv->owner()->getDialogs()->showMathPanel();
 337                         break;
 338         }
 339         bv->updateInset(this, false);
 340 }
 341
 342
 343 void InsetFormulaBase::insetMotionNotify(BufferView * bv,
 344                                          int x, int y, int /*button*/)
 345 {
 346         if (!mathcursor)
 347                 return;
 348
 349         if (abs(x - first_x) < 2 && abs(y - first_y) < 2) {
 350                 //lyxerr << "insetMotionNotify: ignored\n";
 351                 return;
 352         }
 353         first_x = x;
 354         first_y = y;
 355
 356         if (!mathcursor->selection())
 357                 mathcursor->selStart();
 358
 359         //lyxerr << "insetMotionNotify: " << x + xo_ << ' ' << y + yo_
 360         //      << ' ' << button << "\n";
 361         hideInsetCursor(bv);
 362         mathcursor->setPos(x + xo_, y + yo_);
 363         showInsetCursor(bv);
 364         bv->updateInset(this, false);
 365 }
 366
 367
 368 void InsetFormulaBase::insetKeyPress(XKeyEvent *)
 369 {
 370         lyxerr[Debug::MATHED] << "Used InsetFormulaBase::InsetKeyPress." << endl;
 371 }
 372
 373
 374 UpdatableInset::RESULT
 375 InsetFormulaBase::localDispatch(BufferView * bv, kb_action action,
 376                             string const & arg)
 377 {
 378         //lyxerr << "InsetFormulaBase::localDispatch: act: " << action
 379         //      << " arg: '" << arg << "' cursor: " << mathcursor << "\n";
 380
 381         if (!mathcursor)
 382                 return UNDISPATCHED;
 383
 384         if (mathcursor->asHyperActiveInset()) {
 385                 lyxerr << " uurr.... getting dificult now\n";
 386                 return mathcursor->asHyperActiveInset()->localDispatch(bv, action, arg);
 387         }
 388
 389         RESULT result      = DISPATCHED;
 390         bool sel           = false;
 391         bool was_macro     = mathcursor->inMacroMode();
 392         bool was_selection = mathcursor->selection();
 393
 394         hideInsetCursor(bv);
 395
 396         mathcursor->normalize();
 397         mathcursor->touch();
 398
 399         switch (action) {
 400
 401                 // --- Cursor Movements ---------------------------------------------
 402
 403         case LFUN_RIGHTSEL:
 404                 sel = true; // fall through...
 405
 406         case LFUN_RIGHT:
 407                 result = mathcursor->right(sel) ? DISPATCHED : FINISHED_RIGHT;
 408                 //lyxerr << "calling scroll 20\n";
 409                 //scroll(bv, 20);
 410                 updateLocal(bv, false);
 411                 // write something to the minibuffer
 412                 //bv->owner()->message(mathcursor->info());
 413                 break;
 414
 415
 416         case LFUN_LEFTSEL:
 417                 sel = true; // fall through
 418
 419         case LFUN_LEFT:
 420                 result = mathcursor->left(sel) ? DISPATCHED : FINISHED;
 421                 updateLocal(bv, false);
 422                 break;
 423
 424
 425         case LFUN_UPSEL:
 426                 sel = true;
 427
 428         case LFUN_UP:
 429                 result = mathcursor->up(sel) ? DISPATCHED : FINISHED_UP;
 430                 updateLocal(bv, false);
 431                 break;
 432
 433
 434         case LFUN_DOWNSEL:
 435                 sel = true;
 436
 437         case LFUN_DOWN:
 438                 result = mathcursor->down(sel) ? DISPATCHED : FINISHED_DOWN;
 439                 updateLocal(bv, false);
 440                 break;
 441
 442         case LFUN_HOMESEL:
 443                 sel = true;
 444
 445         case LFUN_HOME:
 446                 mathcursor->home(sel);
 447                 updateLocal(bv, false);
 448                 break;
 449
 450         case LFUN_ENDSEL:
 451                 sel = true;
 452
 453         case LFUN_END:
 454                 mathcursor->end(sel);
 455                 updateLocal(bv, false);
 456                 break;
 457
 458         case LFUN_DELETE_LINE_FORWARD:
 459                 bv->lockedInsetStoreUndo(Undo::DELETE);
 460                 mathcursor->delLine();
 461                 updateLocal(bv, true);
 462                 break;
 463
 464         case LFUN_TAB:
 465                 mathcursor->idxNext();
 466                 updateLocal(bv, false);
 467                 break;
 468
 469         case LFUN_SHIFT_TAB:
 470                 mathcursor->idxPrev();
 471                 updateLocal(bv, false);
 472                 break;
 473
 474         case LFUN_TABINSERT:
 475                 bv->lockedInsetStoreUndo(Undo::EDIT);
 476                 mathcursor->splitCell();
 477                 updateLocal(bv, true);
 478                 break;
 479
 480         case LFUN_DELETE_WORD_BACKWARD:
 481         case LFUN_BACKSPACE:
 482                 bv->lockedInsetStoreUndo(Undo::DELETE);
 483                 mathcursor->backspace();
 484                 bv->updateInset(this, true);
 485                 break;
 486
 487         case LFUN_DELETE_WORD_FORWARD:
 488         case LFUN_DELETE:
 489                 bv->lockedInsetStoreUndo(Undo::DELETE);
 490                 mathcursor->erase();
 491                 bv->updateInset(this, true);
 492                 break;
 493
 494         //    case LFUN_GETXY:
 495         //      sprintf(dispatch_buffer, "%d %d",);
 496         //      dispatch_result = dispatch_buffer;
 497         //      break;
 498         case LFUN_SETXY: {
 499                 lyxerr << "LFUN_SETXY broken!\n";
 500                 int x = 0;
 501                 int y = 0;
 502                 istringstream is(arg.c_str());
 503                 is >> x >> y;
 504                 mathcursor->setPos(x, y);
 505                 updateLocal(bv, false);
 506                 break;
 507         }
 508
 509         case LFUN_PASTE:
 510                 if (was_macro)
 511                         mathcursor->macroModeClose();
 512                 bv->lockedInsetStoreUndo(Undo::EDIT);
 513                 mathcursor->selPaste();
 514                 updateLocal(bv, true);
 515                 break;
 516
 517         case LFUN_CUT:
 518                 bv->lockedInsetStoreUndo(Undo::DELETE);
 519                 mathcursor->selCut();
 520                 updateLocal(bv, true);
 521                 break;
 522
 523         case LFUN_COPY:
 524                 mathcursor->selCopy();
 525                 break;
 526
 527         case LFUN_WORDRIGHTSEL:
 528         case LFUN_WORDLEFTSEL:
 529                 break;
 530
 531         // Special casing for superscript in case of LyX handling
 532         // dead-keys:
 533         case LFUN_CIRCUMFLEX:
 534                 if (arg.empty()) {
 535                         // do superscript if LyX handles
 536                         // deadkeys
 537                         bv->lockedInsetStoreUndo(Undo::EDIT);
 538                         mathcursor->script(true);
 539                         updateLocal(bv, true);
 540                 }
 541                 break;
 542         case LFUN_UMLAUT:
 543         case LFUN_ACUTE:
 544         case LFUN_GRAVE:
 545         case LFUN_BREVE:
 546         case LFUN_DOT:
 547         case LFUN_MACRON:
 548         case LFUN_CARON:
 549         case LFUN_TILDE:
 550         case LFUN_CEDILLA:
 551         case LFUN_CIRCLE:
 552         case LFUN_UNDERDOT:
 553         case LFUN_TIE:
 554         case LFUN_OGONEK:
 555         case LFUN_HUNG_UMLAUT:
 556                 break;
 557
 558         //  Math fonts
 559         case LFUN_GREEK_TOGGLE: handleFont(bv, arg, LM_TC_GREEK); break;
 560         case LFUN_BOLD:         handleFont(bv, arg, LM_TC_BF); break;
 561         case LFUN_SANS:         handleFont(bv, arg, LM_TC_SF); break;
 562         case LFUN_EMPH:         handleFont(bv, arg, LM_TC_CAL); break;
 563         case LFUN_ROMAN:        handleFont(bv, arg, LM_TC_RM); break;
 564         case LFUN_CODE:         handleFont(bv, arg, LM_TC_TT); break;
 565         case LFUN_FRAK:         handleFont(bv, arg, LM_TC_EUFRAK); break;
 566         case LFUN_ITAL:         handleFont(bv, arg, LM_TC_IT); break;
 567         case LFUN_NOUN:         handleFont(bv, arg, LM_TC_BB); break;
 568         case LFUN_DEFAULT:      handleFont(bv, arg, LM_TC_VAR); break;
 569         case LFUN_FREE:         handleFont(bv, arg, LM_TC_TEXTRM); break;
 570
 571         case LFUN_GREEK:
 572                 handleFont(bv, arg, LM_TC_GREEK1);
 573                 if (arg.size())
 574                         mathcursor->interpret(arg);
 575                 break;
 576
 577         case LFUN_MATH_MODE:
 578 #if 1
 579                 handleFont(bv, arg, LM_TC_TEXTRM);
 580 #endif
 581
 582 #if 0
 583                 mathcursor->niceInsert(MathAtom(new MathHullInset(LM_OT_SIMPLE)));
 584                 updateLocal(bv, true);
 585 #endif
 586
 587                 //bv->owner()->message(_("math text mode toggled"));
 588                 break;
 589
 590         case LFUN_MATH_LIMITS:
 591                 bv->lockedInsetStoreUndo(Undo::EDIT);
 592                 if (mathcursor->toggleLimits())
 593                         updateLocal(bv, true);
 594                 break;
 595
 596         case LFUN_MATH_SIZE:
 597 #if 0
 598                 if (!arg.empty()) {
 599                         bv->lockedInsetStoreUndo(Undo::EDIT);
 600                         mathcursor->setSize(arg);
 601                         updateLocal(bv, true);
 602                 }
 603 #endif
 604                 break;
 605
 606         case LFUN_INSERT_MATRIX:
 607                 if (!arg.empty()) {
 608                         bv->lockedInsetStoreUndo(Undo::EDIT);
 609                         mathcursor->interpret("matrix " + arg);
 610                         updateLocal(bv, true);
 611                 }
 612                 break;
 613
 614         case LFUN_MATH_SPACE:
 615         {
 616                 bv->lockedInsetStoreUndo(Undo::EDIT);
 617                 mathcursor->insert(MathAtom(new MathSpaceInset(1)));
 618                 updateLocal(bv, true);
 619                 break;
 620         }
 621
 622         case LFUN_SUPERSCRIPT:
 623         case LFUN_SUBSCRIPT:
 624         {
 625                 bv->lockedInsetStoreUndo(Undo::EDIT);
 626                 mathcursor->script((action == LFUN_SUPERSCRIPT));
 627                 updateLocal(bv, true);
 628                 break;
 629         }
 630
 631         case LFUN_MATH_DELIM:
 632         {
 633                 lyxerr << "formulabase::LFUN_MATH_DELIM, arg: '" << arg << "'\n";
 634                 string ls;
 635                 string rs;
 636                 istringstream is(arg.c_str());
 637                 is >> ls >> rs;
 638                 if (!is) {
 639                         lyxerr << "can't parse delimeters from '" << arg << "'\n";
 640                         break;
 641                 }
 642                 bv->lockedInsetStoreUndo(Undo::EDIT);
 643                 mathcursor->handleDelim(ls, rs);
 644                 updateLocal(bv, true);
 645                 break;
 646         }
 647
 648         case LFUN_PROTECTEDSPACE:
 649                 //lyxerr << " called LFUN_PROTECTEDSPACE\n";
 650                 bv->lockedInsetStoreUndo(Undo::EDIT);
 651                 mathcursor->insert(MathAtom(new MathSpaceInset(1)));
 652                 updateLocal(bv, true);
 653                 break;
 654
 655         case LFUN_UNDO:
 656                 bv->owner()->message(_("Invalid action in math mode!"));
 657                 break;
 658
 659
 660         case LFUN_MATH_HALIGN:
 661         case LFUN_MATH_VALIGN:
 662         case LFUN_MATH_ROW_INSERT:
 663         case LFUN_MATH_ROW_DELETE:
 664         case LFUN_MATH_COLUMN_INSERT:
 665         case LFUN_MATH_COLUMN_DELETE:
 666         {
 667                 MathInset::idx_type idx = 0;
 668                 MathGridInset * p = mathcursor ? mathcursor->enclosingGrid(idx) : 0;
 669                 if (p) {
 670                         mathcursor->popToEnclosingGrid();
 671                         bv->lockedInsetStoreUndo(Undo::EDIT);
 672                         char align = arg.size() ? arg[0] : 'c';
 673                         switch (action) {
 674                                 case LFUN_MATH_HALIGN: p->halign(align, p->col(idx)); break;
 675                                 case LFUN_MATH_VALIGN: p->valign(align); break;
 676                                 case LFUN_MATH_ROW_INSERT: p->addRow(p->row(idx)); break;
 677                                 case LFUN_MATH_ROW_DELETE: p->delRow(p->row(idx)); break;
 678                                 case LFUN_MATH_COLUMN_INSERT: p->addCol(p->col(idx)); break;
 679                                 case LFUN_MATH_COLUMN_DELETE: p->delCol(p->col(idx)); break;
 680                                 default: ;
 681                         }
 682                         updateLocal(bv, true);
 683                 }
 684                 break;
 685         }
 686
 687         case LFUN_EXEC_COMMAND:
 688                 result = UNDISPATCHED;
 689                 break;
 690
 691         case LFUN_BREAKPARAGRAPH:
 692         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
 693                 //lyxerr << "LFUN ignored\n";
 694                 break;
 695
 696         case LFUN_INSET_ERT:
 697                 // interpret this as if a backslash was typed
 698                 bv->lockedInsetStoreUndo(Undo::EDIT);
 699                 mathcursor->interpret("\\");
 700                 updateLocal(bv, true);
 701                 break;
 702
 703         case -1:
 704         case LFUN_INSERT_MATH:
 705         case LFUN_SELFINSERT:
 706                 if (!arg.empty()) {
 707                         bv->lockedInsetStoreUndo(Undo::EDIT);
 708                         result = mathcursor->interpret(arg) ? DISPATCHED : FINISHED_RIGHT;
 709                         updateLocal(bv, true);
 710                 }
 711                 break;
 712
 713         case LFUN_MATH_PANEL:
 714                 result = UNDISPATCHED;
 715                 break;
 716
 717         case LFUN_ESCAPE:
 718                 if (mathcursor->selection())
 719                         mathcursor->selClear();
 720                 else
 721                         result = UNDISPATCHED;
 722                 break;
 723
 724         default:
 725                 result = UNDISPATCHED;
 726         }
 727
 728         mathcursor->normalize();
 729         mathcursor->touch();
 730
 731         lyx::Assert(mathcursor);
 732
 733         if (mathcursor->selection() || was_selection)
 734                 toggleInsetSelection(bv);
 735
 736         if (result == DISPATCHED || result == DISPATCHED_NOUPDATE ||
 737             result == UNDISPATCHED)
 738                 showInsetCursor(bv);
 739         else
 740                 bv->unlockInset(this);
 741
 742         revealCodes(bv);
 743
 744         return result;  // original version
 745 }
 746
 747
 748 void InsetFormulaBase::revealCodes(BufferView * /*bv*/) const
 749 {
 750         if (!mathcursor)
 751                 return;
 752 #if 0
 753         // write something to the minibuffer
 754         // translate to latex
 755         mathcursor->markInsert();
 756         ostringstream os;
 757         write(NULL, os);
 758         string str = os.str();
 759         mathcursor->markErase();
 760         string::size_type pos = 0;
 761         string res;
 762         for (string::iterator it = str.begin(); it != str.end(); ++it) {
 763                 if (*it == '\n')
 764                         res += ' ';
 765                 else if (*it == '\0') {
 766                         res += "  -X-  ";
 767                         pos = it - str.begin();
 768                 }
 769                 else
 770                         res += *it;
 771         }
 772         if (pos > 30)
 773                 res = res.substr(pos - 30);
 774         if (res.size() > 60)
 775                 res = res.substr(0, 60);
 776         bv->owner()->message(res);
 777 #endif
 778 }
 779
 780
 781 Inset::Code InsetFormulaBase::lyxCode() const
 782 {
 783         return Inset::MATH_CODE;
 784 }
 785
 786
 787 int InsetFormulaBase::ylow() const
 788 {
 789         return yo_ - ascent(view_, font_);
 790 }
 791
 792
 793 int InsetFormulaBase::yhigh() const
 794 {
 795         return yo_ + descent(view_, font_);
 796 }
 797
 798
 799 int InsetFormulaBase::xlow() const
 800 {
 801         return xo_;
 802 }
 803
 804
 805 int InsetFormulaBase::xhigh() const
 806 {
 807         return xo_ + width(view_, font_);
 808 }
 809
 810
 811 /////////////////////////////////////////////////////////////////////
 812
 813
 814 bool InsetFormulaBase::searchForward(BufferView * bv, string const & str,
 815                                      bool, bool)
 816 {
 817 #ifdef WITH_WARNINGS
 818 #warning pretty ugly
 819 #endif
 820         static InsetFormulaBase * lastformula = 0;
 821         static MathIterator current = MathIterator(ibegin(par().nucleus()));
 822         static MathArray ar;
 823         static string laststr;
 824
 825         if (lastformula != this || laststr != str) {
 826                 //lyxerr << "reset lastformula to " << this << "\n";
 827                 lastformula = this;
 828                 laststr = str;
 829                 current = ibegin(par().nucleus());
 830                 ar.clear();
 831                 mathed_parse_cell(ar, str);
 832         } else {
 833                 ++current;
 834         }
 835         //lyxerr << "searching '" << str << "' in " << this << ar << endl;
 836
 837         for (MathIterator it = current; it != iend(par().nucleus()); ++it) {
 838                 if (it.cell().matchpart(ar, it.position().pos_)) {
 839                         mathcursor->setSelection(it.cursor(), ar.size());
 840                         current = it;
 841                         it.jump(ar.size());
 842                         // I guess some of the following can go
 843                         bv->toggleSelection(true);
 844                         hideInsetCursor(bv);
 845                         updateLocal(bv, true);
 846                         showInsetCursor(bv);
 847                         metrics(bv);
 848                         return true;
 849                 }
 850         }
 851
 852         //lyxerr << "not found!\n";
 853         lastformula = 0;
 854         // we have to unlock ourself in this function by default!
 855         // don't ask me why...
 856         bv->unlockInset(this);
 857         return false;
 858 }
 859
 860
 861 bool InsetFormulaBase::searchBackward(BufferView * bv, string const & what,
 862                                       bool a, bool b)
 863 {
 864         lyxerr << "searching backward not implemented in mathed" << endl;
 865         return searchForward(bv, what, a, b);
 866 }
 867
 868
 869 /////////////////////////////////////////////////////////////////////
 870
 871
 872 void mathDispatchCreation(BufferView * bv, string const & arg, bool display)
 873 {
 874         if (bv->available()) {
 875                 // use selection if available..
 876                 //string sel;
 877                 //if (action == LFUN_MATH_IMPORT_SELECTION)
 878                 //      sel = "";
 879                 //else
 880
 881                 string sel = bv->getLyXText()->selectionAsString(bv->buffer(), false);
 882
 883                 InsetFormulaBase * f;
 884                 if (sel.empty()) {
 885                         f = new InsetFormula;
 886                         if (openNewInset(bv, f)) {
 887                                 // don't do that also for LFUN_MATH_MODE unless you want end up with
 888                                 // always changing to mathrm when opening an inlined inset
 889                                 // -- I really hate "LyXfunc overloading"...
 890                                 if (display)
 891                                         f->localDispatch(bv, LFUN_MATH_DISPLAY, string());
 892                                 f->localDispatch(bv, LFUN_INSERT_MATH, arg);
 893                         }
 894                 } else {
 895                         // create a macro if we see "\\newcommand" somewhere, and an ordinary
 896                         // formula otherwise
 897                         if (sel.find("\\newcommand") == string::npos &&
 898                                   sel.find("\\def") == string::npos)
 899                                 f = new InsetFormula(sel);
 900                         else {
 901                                 string name;
 902                                 if (!mathed_parse_macro(name, sel))
 903                                         return;
 904                                 f = new InsetFormulaMacro(sel);
 905                         }
 906                         bv->getLyXText()->cutSelection(bv);
 907                         openNewInset(bv, f);
 908                 }
 909         }
 910         bv->owner()->getLyXFunc()->setMessage(N_("Math editor mode"));
 911 }
 912
 913
 914 void mathDispatchMathDisplay(BufferView * bv, string const & arg)
 915 {
 916         mathDispatchCreation(bv, arg, true);
 917 }
 918
 919
 920 void mathDispatchMathMode(BufferView * bv, string const & arg)
 921 {
 922         mathDispatchCreation(bv, arg, false);
 923 }
 924
 925
 926 void mathDispatchMathImportSelection(BufferView * bv, string const & arg)
 927 {
 928         mathDispatchCreation(bv, arg, true);
 929 }
 930
 931
 932 void mathDispatchMathMacro(BufferView * bv, string const & arg)
 933 {
 934         if (bv->available()) {
 935                 if (arg.empty())
 936                         bv->owner()->getLyXFunc()->setErrorMessage(N_("Missing argument"));
 937                 else {
 938                         string s = arg;
 939                         string const s1 = token(s, ' ', 1);
 940                         int const na = s1.empty() ? 0 : lyx::atoi(s1);
 941                         openNewInset(bv, new InsetFormulaMacro(token(s, ' ', 0), na));
 942                 }
 943         }
 944 }
 945
 946
 947 void mathDispatchMathDelim(BufferView * bv, string const & arg)
 948 {
 949         if (bv->available()) {
 950                 if (openNewInset(bv, new InsetFormula))
 951                         bv->theLockingInset()->localDispatch(bv, LFUN_MATH_DELIM, arg);
 952         }
 953 }
 954
 955
 956 void mathDispatchInsertMatrix(BufferView * bv, string const & arg)
 957 {
 958         if (bv->available()) {
 959                 if (openNewInset(bv, new InsetFormula))
 960                         bv->theLockingInset()->localDispatch(bv, LFUN_INSERT_MATRIX, arg);
 961         }
 962 }
 963
 964
 965 void mathDispatchInsertMath(BufferView * bv, string const & arg)
 966 {
 967         if (bv->available()) {
 968                 if (arg.size() && arg[0] == '\\') {
 969                         InsetFormula * f = new InsetFormula(arg);
 970                         if (!bv->insertInset(f))
 971                                 delete f;
 972                 } else
 973                         mathDispatchMathMode(bv, arg);
 974         }
 975 }
 976
 977
 978 void mathDispatchGreek(BufferView * bv, string const & arg)
 979 {
 980         if (bv->available()) {
 981                 InsetFormula * f = new InsetFormula;
 982                 if (openNewInset(bv, f)) {
 983                         bv->theLockingInset()->localDispatch(bv, LFUN_GREEK, arg);
 984                         bv->unlockInset(f);
 985                 }
 986         }
 987 }
 988
 989
 990 void mathDispatch(BufferView *, kb_action, string const &)
 991 {}