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 "frontends/Dialogs.h"
  51 #include "intl.h"
  52
  53 using std::endl;
  54 using std::ostream;
  55 using std::vector;
  56
  57 MathCursor * mathcursor = 0;
  58
  59
  60 namespace {
  61
  62
  63 // local global
  64 int first_x;
  65 int first_y;
  66 int hack_x;
  67 int hack_y;
  68 int hack_button;
  69
  70
  71 void handleFont(BufferView * bv, string const & arg, MathTextCodes t)
  72 {
  73         if (mathcursor->selection())
  74                 bv->lockedInsetStoreUndo(Undo::EDIT);
  75         mathcursor->handleFont(t);
  76         for (string::const_iterator it = arg.begin(); it != arg.end(); ++it)
  77                 mathcursor->insert(*it);
  78 }
  79
  80
  81 bool openNewInset(BufferView * bv, UpdatableInset * new_inset)
  82 {
  83         if (!bv->insertInset(new_inset)) {
  84                 delete new_inset;
  85                 return false;
  86         }
  87         new_inset->edit(bv, 0, 0, 0);
  88         return true;
  89 }
  90
  91
  92 } // namespace anon
  93
  94
  95
  96 InsetFormulaBase::InsetFormulaBase()
  97         : view_(0), font_(), xo_(0), yo_(0)
  98 {
  99         // This is needed as long the math parser is not re-entrant
 100         MathMacroTable::builtinMacros();
 101         //lyxerr << "sizeof MathInset: " << sizeof(MathInset) << "\n";
 102 }
 103
 104
 105 // simply scrap this function if you want
 106 void InsetFormulaBase::mutateToText()
 107 {
 108 #if 0
 109         // translate to latex
 110         ostringstream os;
 111         latex(NULL, os, false, false);
 112         string str = os.str();
 113
 114         // insert this text
 115         LyXText * lt = view_->getLyXText();
 116         string::const_iterator cit = str.begin();
 117         string::const_iterator end = str.end();
 118         for (; cit != end; ++cit)
 119                 view_->owner()->getIntl()->getTrans().TranslateAndInsert(*cit, lt);
 120
 121         // remove ourselves
 122         //view_->owner()->getLyXFunc()->dispatch(LFUN_ESCAPE);
 123 #endif
 124 }
 125
 126
 127 // Check if uses AMS macros
 128 void InsetFormulaBase::validate(LaTeXFeatures &) const
 129 {}
 130
 131
 132 void InsetFormulaBase::metrics(BufferView * bv, LyXFont const & f) const
 133 {
 134         font_ = f;
 135         metrics(bv);
 136 }
 137
 138
 139 void InsetFormulaBase::metrics(BufferView * bv) const
 140 {
 141         if (bv)
 142                 view_ = bv;
 143         MathMetricsInfo mi(view_, font_, display() ? LM_ST_DISPLAY : LM_ST_TEXT);
 144         par()->metrics(mi);
 145 }
 146
 147
 148 string const InsetFormulaBase::editMessage() const
 149 {
 150         return _("Math editor mode");
 151 }
 152
 153
 154 void InsetFormulaBase::edit(BufferView * bv, int x, int /*y*/, unsigned int)
 155 {
 156         if (!bv->lockInset(this))
 157                 lyxerr[Debug::MATHED] << "Cannot lock inset!!!" << endl;
 158
 159         //lyxerr << "edit: " << x  << " " << y << " button: " << button << "\n";
 160         if (!mathcursor) {
 161                 mathcursor = new MathCursor(this, x == 0);
 162                 metrics(bv);
 163                 // handle ignored click
 164                 if (hack_x || hack_y) {
 165                         insetButtonPress(bv, hack_x, hack_y, hack_button);
 166                         hack_x = hack_y = 0;
 167                 }
 168         } else
 169                 metrics(bv);
 170         // if that is removed, we won't get the magenta box when entering an
 171         // inset for the first time
 172         bv->updateInset(this, false);
 173 }
 174
 175
 176 void InsetFormulaBase::edit(BufferView * bv, bool front)
 177 {
 178         // looks hackish but seems to work
 179         edit(bv, front ? 0 : 1, 0, 0);
 180 }
 181
 182
 183 void InsetFormulaBase::insetUnlock(BufferView * bv)
 184 {
 185         if (mathcursor) {
 186                 if (mathcursor->inMacroMode()) {
 187                         mathcursor->macroModeClose();
 188                         updateLocal(bv, true);
 189                 }
 190                 delete mathcursor;
 191                 mathcursor = 0;
 192         }
 193         bv->updateInset(this, false);
 194 }
 195
 196
 197 void InsetFormulaBase::getCursorPos(BufferView *, int & x, int & y) const
 198 {
 199         mathcursor->getPos(x, y);
 200         x += xo_;
 201         y += yo_;
 202         //lyxerr << "getCursorPos: " << x << " " << y << "\n";
 203 }
 204
 205
 206 void InsetFormulaBase::toggleInsetCursor(BufferView * bv)
 207 {
 208         if (!mathcursor)
 209                 return;
 210
 211         if (isCursorVisible())
 212                 bv->hideLockedInsetCursor();
 213         else {
 214                 metrics(bv);
 215                 int x;
 216                 int y;
 217                 mathcursor->getPos(x, y);
 218                 y -= yo_;
 219                 int asc = 0;
 220                 int des = 0;
 221                 MathMetricsInfo mi(bv, font_, display() ? LM_ST_DISPLAY : LM_ST_TEXT);
 222                 math_font_max_dim(LM_TC_TEXTRM, mi, asc, des);
 223                 bv->showLockedInsetCursor(x, y, asc, des);
 224                 //lyxerr << "toggleInsetCursor: " << x << " " << y << "\n";
 225         }
 226
 227         toggleCursorVisible();
 228 }
 229
 230
 231 void InsetFormulaBase::showInsetCursor(BufferView * bv, bool)
 232 {
 233         if (isCursorVisible())
 234                 return;
 235         if (mathcursor) {
 236                 metrics(bv);
 237                 int x;
 238                 int y;
 239                 mathcursor->getPos(x, y);
 240                 y -= yo_;
 241                 int asc = 0;
 242                 int des = 0;
 243                 MathMetricsInfo mi(bv, font_, display() ? LM_ST_DISPLAY : LM_ST_TEXT);
 244                 math_font_max_dim(LM_TC_TEXTRM, mi, asc, des);
 245                 bv->fitLockedInsetCursor(x, y, asc, des);
 246                 //lyxerr << "showInsetCursor: x: " << x << " y: " << y << " yo: " << yo_ << "\n";
 247         }
 248         toggleInsetCursor(bv);
 249 }
 250
 251
 252 void InsetFormulaBase::hideInsetCursor(BufferView * bv)
 253 {
 254         if (isCursorVisible())
 255                 toggleInsetCursor(bv);
 256 }
 257
 258
 259 void InsetFormulaBase::toggleInsetSelection(BufferView * bv)
 260 {
 261         if (mathcursor)
 262                 bv->updateInset(this, false);
 263 }
 264
 265
 266 vector<string> const InsetFormulaBase::getLabelList() const
 267 {
 268   return std::vector<string>();
 269 }
 270
 271
 272 void InsetFormulaBase::updateLocal(BufferView * bv, bool dirty)
 273 {
 274         metrics(bv);
 275         bv->updateInset(this, dirty);
 276 }
 277
 278
 279 bool InsetFormulaBase::insetButtonRelease(BufferView * bv,
 280                                           int /*x*/, int /*y*/, int /*button*/)
 281 {
 282         if (!mathcursor)
 283                 return false;
 284         //lyxerr << "insetButtonRelease: " << x << " " << y << "\n";
 285         hideInsetCursor(bv);
 286         showInsetCursor(bv);
 287         bv->updateInset(this, false);
 288         return false;
 289 }
 290
 291
 292 void InsetFormulaBase::insetButtonPress(BufferView * bv,
 293                                         int x, int y, int button)
 294 {
 295         // hack to cope with mouseclick that comes before the call to edit()
 296         if (!mathcursor) {
 297                 hack_x = x;
 298                 hack_y = y;
 299                 hack_button = button;
 300                 return;
 301         }
 302
 303         lyxerr << "insetButtonPress: " << x + xo_ << " " << y + yo_
 304                 << " but: " << button << "\n";
 305         switch (button) {
 306                 default:
 307                 case 1:
 308                         // just click
 309                         first_x = x;
 310                         first_y = y;
 311                         if (mathcursor) {
 312                                 mathcursor->selClear();
 313                                 mathcursor->setPos(x + xo_, y + yo_);
 314                         }
 315                         break;
 316 /*
 317                 case 2:
 318                         lyxerr << "insetButtonPress: 2\n";
 319                         // insert stuff
 320                         if (mathcursor) {
 321                                 bv->lockedInsetStoreUndo(Undo::EDIT);
 322                                 MathArray ar;
 323                                 mathcursor->selGet(ar);
 324                                 mathcursor->setPos(x + xo_, y + yo_);
 325                                 string sel =
 326                                         bv->getLyXText()->selectionAsString(bv->buffer(), false);
 327                                 mathed_parse_cell(ar, sel);
 328                                 mathcursor->insert(ar);
 329                         }
 330                         break;
 331 */
 332                 case 3:
 333                         // launch math panel for right mouse button
 334                         bv->owner()->getDialogs()->showMathPanel();
 335                         break;
 336         }
 337         bv->updateInset(this, false);
 338 }
 339
 340
 341 void InsetFormulaBase::insetMotionNotify(BufferView * bv,
 342                                          int x, int y, int /*button*/)
 343 {
 344         if (!mathcursor)
 345                 return;
 346
 347         if (abs(x - first_x) < 2 && abs(y - first_y) < 2) {
 348                 //lyxerr << "insetMotionNotify: ignored\n";
 349                 return;
 350         }
 351         first_x = x;
 352         first_y = y;
 353
 354         if (!mathcursor->selection())
 355                 mathcursor->selStart();
 356
 357         //lyxerr << "insetMotionNotify: " << x + xo_ << ' ' << y + yo_
 358         //      << ' ' << button << "\n";
 359         hideInsetCursor(bv);
 360         mathcursor->setPos(x + xo_, y + yo_);
 361         showInsetCursor(bv);
 362         bv->updateInset(this, false);
 363 }
 364
 365
 366 void InsetFormulaBase::insetKeyPress(XKeyEvent *)
 367 {
 368         lyxerr[Debug::MATHED] << "Used InsetFormulaBase::InsetKeyPress." << endl;
 369 }
 370
 371
 372 UpdatableInset::RESULT
 373 InsetFormulaBase::localDispatch(BufferView * bv, kb_action action,
 374                             string const & arg)
 375 {
 376         //lyxerr << "InsetFormulaBase::localDispatch: act: " << action
 377         //      << " arg: '" << arg << "' cursor: " << mathcursor << "\n";
 378
 379         if (!mathcursor)
 380                 return UNDISPATCHED;
 381
 382         if (mathcursor->asHyperActiveInset()) {
 383                 lyxerr << " uurr.... getting dificult now\n";
 384                 return mathcursor->asHyperActiveInset()->localDispatch(bv, action, arg);
 385         }
 386
 387         RESULT result      = DISPATCHED;
 388         bool sel           = false;
 389         bool was_macro     = mathcursor->inMacroMode();
 390         bool was_selection = mathcursor->selection();
 391
 392         hideInsetCursor(bv);
 393
 394         mathcursor->normalize();
 395         switch (action) {
 396
 397                 // --- Cursor Movements ---------------------------------------------
 398
 399         case LFUN_RIGHTSEL:
 400                 sel = true; // fall through...
 401
 402         case LFUN_RIGHT:
 403                 result = mathcursor->right(sel) ? DISPATCHED : FINISHED_RIGHT;
 404                 //lyxerr << "calling scroll 20\n";
 405                 //scroll(bv, 20);
 406                 updateLocal(bv, false);
 407                 // write something to the minibuffer
 408                 //bv->owner()->message(mathcursor->info());
 409                 break;
 410
 411
 412         case LFUN_LEFTSEL:
 413                 sel = true; // fall through
 414
 415         case LFUN_LEFT:
 416                 result = mathcursor->left(sel) ? DISPATCHED : FINISHED;
 417                 updateLocal(bv, false);
 418                 break;
 419
 420
 421         case LFUN_UPSEL:
 422                 sel = true;
 423
 424         case LFUN_UP:
 425                 result = mathcursor->up(sel) ? DISPATCHED : FINISHED_UP;
 426                 updateLocal(bv, false);
 427                 break;
 428
 429
 430         case LFUN_DOWNSEL:
 431                 sel = true;
 432
 433         case LFUN_DOWN:
 434                 result = mathcursor->down(sel) ? DISPATCHED : FINISHED_DOWN;
 435                 updateLocal(bv, false);
 436                 break;
 437
 438         case LFUN_HOMESEL:
 439                 sel = true;
 440
 441         case LFUN_HOME:
 442                 mathcursor->home(sel);
 443                 updateLocal(bv, false);
 444                 break;
 445
 446         case LFUN_ENDSEL:
 447                 sel = true;
 448
 449         case LFUN_END:
 450                 mathcursor->end(sel);
 451                 updateLocal(bv, false);
 452                 break;
 453
 454         case LFUN_DELETE_LINE_FORWARD:
 455                 bv->lockedInsetStoreUndo(Undo::DELETE);
 456                 mathcursor->delLine();
 457                 updateLocal(bv, true);
 458                 break;
 459
 460         case LFUN_TAB:
 461                 mathcursor->idxNext();
 462                 updateLocal(bv, false);
 463                 break;
 464
 465         case LFUN_SHIFT_TAB:
 466                 mathcursor->idxPrev();
 467                 updateLocal(bv, false);
 468                 break;
 469
 470         case LFUN_TABINSERT:
 471                 bv->lockedInsetStoreUndo(Undo::EDIT);
 472                 mathcursor->splitCell();
 473                 updateLocal(bv, true);
 474                 break;
 475
 476         case LFUN_DELETE_WORD_BACKWARD:
 477         case LFUN_BACKSPACE:
 478                 bv->lockedInsetStoreUndo(Undo::DELETE);
 479                 mathcursor->backspace();
 480                 bv->updateInset(this, true);
 481                 break;
 482
 483         case LFUN_DELETE_WORD_FORWARD:
 484         case LFUN_DELETE:
 485                 bv->lockedInsetStoreUndo(Undo::DELETE);
 486                 mathcursor->erase();
 487                 bv->updateInset(this, true);
 488                 break;
 489
 490         //    case LFUN_GETXY:
 491         //      sprintf(dispatch_buffer, "%d %d",);
 492         //      dispatch_result = dispatch_buffer;
 493         //      break;
 494         case LFUN_SETXY: {
 495                 lyxerr << "LFUN_SETXY broken!\n";
 496                 int x = 0;
 497                 int y = 0;
 498                 istringstream is(arg.c_str());
 499                 is >> x >> y;
 500                 mathcursor->setPos(x, y);
 501                 updateLocal(bv, false);
 502                 break;
 503         }
 504
 505         case LFUN_PASTE:
 506                 if (was_macro)
 507                         mathcursor->macroModeClose();
 508                 bv->lockedInsetStoreUndo(Undo::EDIT);
 509                 mathcursor->selPaste();
 510                 updateLocal(bv, true);
 511                 break;
 512
 513         case LFUN_CUT:
 514                 bv->lockedInsetStoreUndo(Undo::DELETE);
 515                 mathcursor->selCut();
 516                 updateLocal(bv, true);
 517                 break;
 518
 519         case LFUN_COPY:
 520                 mathcursor->selCopy();
 521                 break;
 522
 523         case LFUN_WORDRIGHTSEL:
 524         case LFUN_WORDLEFTSEL:
 525                 break;
 526
 527         // Special casing for superscript in case of LyX handling
 528         // dead-keys:
 529         case LFUN_CIRCUMFLEX:
 530                 if (arg.empty()) {
 531                         // do superscript if LyX handles
 532                         // deadkeys
 533                         bv->lockedInsetStoreUndo(Undo::EDIT);
 534                         mathcursor->script(true);
 535                         updateLocal(bv, true);
 536                 }
 537                 break;
 538         case LFUN_UMLAUT:
 539         case LFUN_ACUTE:
 540         case LFUN_GRAVE:
 541         case LFUN_BREVE:
 542         case LFUN_DOT:
 543         case LFUN_MACRON:
 544         case LFUN_CARON:
 545         case LFUN_TILDE:
 546         case LFUN_CEDILLA:
 547         case LFUN_CIRCLE:
 548         case LFUN_UNDERDOT:
 549         case LFUN_TIE:
 550         case LFUN_OGONEK:
 551         case LFUN_HUNG_UMLAUT:
 552                 break;
 553
 554         //  Math fonts
 555         case LFUN_GREEK_TOGGLE: handleFont(bv, arg, LM_TC_GREEK); break;
 556         case LFUN_BOLD:         handleFont(bv, arg, LM_TC_BF); break;
 557         case LFUN_SANS:         handleFont(bv, arg, LM_TC_SF); break;
 558         case LFUN_EMPH:         handleFont(bv, arg, LM_TC_CAL); break;
 559         case LFUN_ROMAN:        handleFont(bv, arg, LM_TC_RM); break;
 560         case LFUN_CODE:         handleFont(bv, arg, LM_TC_TT); break;
 561         case LFUN_FRAK:         handleFont(bv, arg, LM_TC_EUFRAK); break;
 562         case LFUN_ITAL:         handleFont(bv, arg, LM_TC_IT); break;
 563         case LFUN_NOUN:         handleFont(bv, arg, LM_TC_BB); break;
 564         case LFUN_DEFAULT:      handleFont(bv, arg, LM_TC_VAR); break;
 565         case LFUN_FREE:         handleFont(bv, arg, LM_TC_TEXTRM); break;
 566
 567         case LFUN_GREEK:
 568                 handleFont(bv, arg, LM_TC_GREEK1);
 569                 if (arg.size())
 570                         mathcursor->interpret(arg);
 571                 break;
 572
 573         case LFUN_MATH_MODE:
 574 #if 0
 575                 handleFont(bv, arg, LM_TC_TEXTRM);
 576 #endif
 577
 578 #if 0
 579                 mathcursor->niceInsert(MathAtom(new MathHullInset(LM_OT_SIMPLE)));
 580                 updateLocal(bv, true);
 581 #endif
 582
 583                 //bv->owner()->message(_("math text mode toggled"));
 584                 break;
 585
 586         case LFUN_MATH_LIMITS:
 587                 bv->lockedInsetStoreUndo(Undo::EDIT);
 588                 if (mathcursor->toggleLimits())
 589                         updateLocal(bv, true);
 590                 break;
 591
 592         case LFUN_MATH_SIZE:
 593 #if 0
 594                 if (!arg.empty()) {
 595                         bv->lockedInsetStoreUndo(Undo::EDIT);
 596                         mathcursor->setSize(arg);
 597                         updateLocal(bv, true);
 598                 }
 599 #endif
 600                 break;
 601
 602         case LFUN_INSERT_MATRIX:
 603                 if (!arg.empty()) {
 604                         bv->lockedInsetStoreUndo(Undo::EDIT);
 605                         mathcursor->interpret("matrix " + arg);
 606                         updateLocal(bv, true);
 607                 }
 608                 break;
 609
 610         case LFUN_MATH_SPACE:
 611         {
 612                 bv->lockedInsetStoreUndo(Undo::EDIT);
 613                 mathcursor->insert(MathAtom(new MathSpaceInset(1)));
 614                 updateLocal(bv, true);
 615                 break;
 616         }
 617
 618         case LFUN_SUPERSCRIPT:
 619         case LFUN_SUBSCRIPT:
 620         {
 621                 bv->lockedInsetStoreUndo(Undo::EDIT);
 622                 mathcursor->script((action == LFUN_SUPERSCRIPT));
 623                 updateLocal(bv, true);
 624                 break;
 625         }
 626
 627         case LFUN_MATH_DELIM:
 628         {
 629                 lyxerr << "formulabase::LFUN_MATH_DELIM, arg: '" << arg << "'\n";
 630                 string ls;
 631                 string rs;
 632                 istringstream is(arg.c_str());
 633                 is >> ls >> rs;
 634                 if (!is) {
 635                         lyxerr << "can't parse delimeters from '" << arg << "'\n";
 636                         break;
 637                 }
 638                 bv->lockedInsetStoreUndo(Undo::EDIT);
 639                 mathcursor->handleDelim(ls, rs);
 640                 updateLocal(bv, true);
 641                 break;
 642         }
 643
 644         case LFUN_PROTECTEDSPACE:
 645                 //lyxerr << " called LFUN_PROTECTEDSPACE\n";
 646                 bv->lockedInsetStoreUndo(Undo::EDIT);
 647                 mathcursor->insert(MathAtom(new MathSpaceInset(1)));
 648                 updateLocal(bv, true);
 649                 break;
 650
 651         case LFUN_UNDO:
 652                 bv->owner()->message(_("Invalid action in math mode!"));
 653                 break;
 654
 655
 656         case LFUN_MATH_HALIGN:
 657         case LFUN_MATH_VALIGN:
 658         case LFUN_MATH_ROW_INSERT:
 659         case LFUN_MATH_ROW_DELETE:
 660         case LFUN_MATH_COLUMN_INSERT:
 661         case LFUN_MATH_COLUMN_DELETE:
 662         {
 663                 MathInset::idx_type idx = 0;
 664                 MathGridInset * p = mathcursor ? mathcursor->enclosingGrid(idx) : 0;
 665                 if (p) {
 666                         bv->lockedInsetStoreUndo(Undo::EDIT);
 667                         char al = arg.size() ? arg[0] : 'c';
 668                         switch (action) {
 669                                 case LFUN_MATH_HALIGN: p->halign(al, p->col(idx)); break;
 670                                 case LFUN_MATH_VALIGN: p->valign(al); break;
 671                                 case LFUN_MATH_ROW_INSERT: p->addRow(p->row(idx)); break;
 672                                 case LFUN_MATH_ROW_DELETE: p->delRow(p->row(idx)); break;
 673                                 case LFUN_MATH_COLUMN_INSERT: p->addCol(p->col(idx)); break;
 674                                 case LFUN_MATH_COLUMN_DELETE: p->delCol(p->col(idx)); break;
 675                                 default: ;
 676                         }
 677                         updateLocal(bv, true);
 678                 }
 679                 break;
 680         }
 681
 682         case LFUN_EXEC_COMMAND:
 683                 result = UNDISPATCHED;
 684                 break;
 685
 686         case LFUN_BREAKPARAGRAPH:
 687         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
 688                 //lyxerr << "LFUN ignored\n";
 689                 break;
 690
 691         case LFUN_INSET_ERT:
 692                 // interpret this as if a backslash was typed
 693                 bv->lockedInsetStoreUndo(Undo::EDIT);
 694                 mathcursor->interpret("\\");
 695                 updateLocal(bv, true);
 696                 break;
 697
 698         case -1:
 699         case LFUN_INSERT_MATH:
 700         case LFUN_SELFINSERT:
 701                 if (!arg.empty()) {
 702                         bv->lockedInsetStoreUndo(Undo::EDIT);
 703                         result = mathcursor->interpret(arg) ? DISPATCHED : FINISHED_RIGHT;
 704                         updateLocal(bv, true);
 705                 }
 706                 break;
 707
 708         case LFUN_MATH_PANEL:
 709                 result = UNDISPATCHED;
 710                 break;
 711
 712         case LFUN_ESCAPE:
 713                 if (mathcursor->selection())
 714                         mathcursor->selClear();
 715                 else
 716                         result = UNDISPATCHED;
 717                 break;
 718
 719         default:
 720                 result = UNDISPATCHED;
 721         }
 722
 723         mathcursor->normalize();
 724
 725         lyx::Assert(mathcursor);
 726
 727         if (mathcursor->selection() || was_selection)
 728                 toggleInsetSelection(bv);
 729
 730         if (result == DISPATCHED || result == DISPATCHED_NOUPDATE ||
 731             result == UNDISPATCHED)
 732                 showInsetCursor(bv);
 733         else
 734                 bv->unlockInset(this);
 735
 736         revealCodes(bv);
 737
 738         return result;  // original version
 739 }
 740
 741
 742 void InsetFormulaBase::revealCodes(BufferView * bv) const
 743 {
 744         if (!mathcursor)
 745                 return;
 746 #if 0
 747         // write something to the minibuffer
 748         // translate to latex
 749         mathcursor->markInsert();
 750         ostringstream os;
 751         write(NULL, os);
 752         string str = os.str();
 753         mathcursor->markErase();
 754         string::size_type pos = 0;
 755         string res;
 756         for (string::iterator it = str.begin(); it != str.end(); ++it) {
 757                 if (*it == '\n')
 758                         res += ' ';
 759                 else if (*it == '\0') {
 760                         res += "  -X-  ";
 761                         pos = it - str.begin();
 762                 }
 763                 else
 764                         res += *it;
 765         }
 766         if (pos > 30)
 767                 res = res.substr(pos - 30);
 768         if (res.size() > 60)
 769                 res = res.substr(0, 60);
 770         bv->owner()->message(res);
 771 #endif
 772 }
 773
 774
 775 Inset::Code InsetFormulaBase::lyxCode() const
 776 {
 777         return Inset::MATH_CODE;
 778 }
 779
 780
 781 int InsetFormulaBase::ylow() const
 782 {
 783         return yo_ - ascent(view_, font_);
 784 }
 785
 786
 787 int InsetFormulaBase::yhigh() const
 788 {
 789         return yo_ + descent(view_, font_);
 790 }
 791
 792
 793 int InsetFormulaBase::xlow() const
 794 {
 795         return xo_;
 796 }
 797
 798
 799 int InsetFormulaBase::xhigh() const
 800 {
 801         return xo_ + width(view_, font_);
 802 }
 803
 804
 805 /////////////////////////////////////////////////////////////////////
 806
 807
 808 bool InsetFormulaBase::searchForward(BufferView * bv, string const & str,
 809                                      bool, bool)
 810 {
 811 #ifdef WITH_WARNINGS
 812 #warning pretty ugly
 813 #endif
 814         static InsetFormulaBase * lastformula = 0;
 815         static MathIterator current = MathIterator(ibegin(par().nucleus()));
 816         static MathArray ar;
 817         static string laststr;
 818
 819         if (lastformula != this || laststr != str) {
 820                 //lyxerr << "reset lastformula to " << this << "\n";
 821                 lastformula = this;
 822                 laststr = str;
 823                 current = ibegin(par().nucleus());
 824                 ar.clear();
 825                 mathed_parse_cell(ar, str);
 826         } else {
 827                 ++current;
 828         }
 829         //lyxerr << "searching '" << str << "' in " << this << ar << endl;
 830
 831         for (MathIterator it = current; it != iend(par().nucleus()); ++it) {
 832                 if (it.cell().matchpart(ar, it.position().pos_)) {
 833                         mathcursor->setSelection(it.cursor(), ar.size());
 834                         current = it;
 835                         it.jump(ar.size());
 836                         // I guess some of the following can go
 837                         bv->toggleSelection(true);
 838                         hideInsetCursor(bv);
 839                         updateLocal(bv, true);
 840                         showInsetCursor(bv);
 841                         metrics(bv);
 842                         return true;
 843                 }
 844         }
 845
 846         //lyxerr << "not found!\n";
 847         lastformula = 0;
 848         // we have to unlock ourself in this function by default!
 849         // don't ask me why...
 850         bv->unlockInset(this);
 851         return false;
 852 }
 853
 854
 855 bool InsetFormulaBase::searchBackward(BufferView * bv, string const & what,
 856                                       bool a, bool b)
 857 {
 858         lyxerr << "searching backward not implemented in mathed" << endl;
 859         return searchForward(bv, what, a, b);
 860 }
 861
 862
 863 /////////////////////////////////////////////////////////////////////
 864
 865
 866 void mathDispatchCreation(BufferView * bv, string const & arg, bool display)
 867 {
 868         if (bv->available()) {
 869                 // use selection if available..
 870                 //string sel;
 871                 //if (action == LFUN_MATH_IMPORT_SELECTION)
 872                 //      sel = "";
 873                 //else
 874
 875                 string sel = bv->getLyXText()->selectionAsString(bv->buffer(), false);
 876
 877                 InsetFormulaBase * f;
 878                 if (sel.empty()) {
 879                         f = new InsetFormula;
 880                         if (openNewInset(bv, f)) {
 881                                 // don't do that also for LFUN_MATH_MODE unless you want end up with
 882                                 // always changing to mathrm when opening an inlined inset
 883                                 // -- I really hate "LyXfunc overloading"...
 884                                 if (display)
 885                                         f->localDispatch(bv, LFUN_MATH_DISPLAY, string());
 886                                 f->localDispatch(bv, LFUN_INSERT_MATH, arg);
 887                         }
 888                 } else {
 889                         // create a macro if we see "\\newcommand" somewhere, and an ordinary
 890                         // formula otherwise
 891                         if (sel.find("\\newcommand") == string::npos)
 892                                 f = new InsetFormula(sel);
 893                         else {
 894                                 string name;
 895                                 if (!mathed_parse_macro(name, sel))
 896                                         return;
 897                                 f = new InsetFormulaMacro(sel);
 898                         }
 899                         bv->getLyXText()->cutSelection(bv);
 900                         openNewInset(bv, f);
 901                 }
 902         }
 903         bv->owner()->getLyXFunc()->setMessage(N_("Math editor mode"));
 904 }
 905
 906
 907 void mathDispatchMathDisplay(BufferView * bv, string const & arg)
 908 {
 909         mathDispatchCreation(bv, arg, true);
 910 }
 911
 912
 913 void mathDispatchMathMode(BufferView * bv, string const & arg)
 914 {
 915         mathDispatchCreation(bv, arg, false);
 916 }
 917
 918
 919 void mathDispatchMathImportSelection(BufferView * bv, string const & arg)
 920 {
 921         mathDispatchCreation(bv, arg, true);
 922 }
 923
 924
 925 void mathDispatchMathMacro(BufferView * bv, string const & arg)
 926 {
 927         if (bv->available()) {
 928                 if (arg.empty())
 929                         bv->owner()->getLyXFunc()->setErrorMessage(N_("Missing argument"));
 930                 else {
 931                         string s(arg);
 932                         string const s1 = token(s, ' ', 1);
 933                         int const na = s1.empty() ? 0 : lyx::atoi(s1);
 934                         openNewInset(bv, new InsetFormulaMacro(token(s, ' ', 0), na));
 935                 }
 936         }
 937 }
 938
 939
 940 void mathDispatchMathDelim(BufferView * bv, string const & arg)
 941 {
 942         if (bv->available()) {
 943                 if (openNewInset(bv, new InsetFormula))
 944                         bv->theLockingInset()->localDispatch(bv, LFUN_MATH_DELIM, arg);
 945         }
 946 }
 947
 948
 949 void mathDispatchInsertMatrix(BufferView * bv, string const & arg)
 950 {
 951         if (bv->available()) {
 952                 if (openNewInset(bv, new InsetFormula))
 953                         bv->theLockingInset()->localDispatch(bv, LFUN_INSERT_MATRIX, arg);
 954         }
 955 }
 956
 957
 958 void mathDispatchInsertMath(BufferView * bv, string const & arg)
 959 {
 960         if (bv->available()) {
 961                 if (arg.size() && arg[0] == '\\') {
 962                         InsetFormula * f = new InsetFormula(arg);
 963                         if (!bv->insertInset(f))
 964                                 delete f;
 965                 } else
 966                         mathDispatchMathMode(bv, arg);
 967         }
 968 }
 969
 970
 971 void mathDispatchGreek(BufferView * bv, string const & arg)
 972 {
 973         if (bv->available()) {
 974                 InsetFormula * f = new InsetFormula;
 975                 if (openNewInset(bv, f)) {
 976                         bv->theLockingInset()->localDispatch(bv, LFUN_GREEK, arg);
 977                         bv->unlockInset(f);
 978                 }
 979         }
 980 }
 981
 982
 983 void mathDispatch(BufferView *, kb_action, string const &)
 984 {}