src/mathed/formulabase.C

   1 /*
   2 *  File:        formulabase.C
   3 *  Purpose:     Implementation of common parts of the LyX  math insets
   4 *  Author:      Alejandro Aguilar Sierra <asierra@servidor.unam.mx>
   5 *  Created:     January 1996
   6 *
   7 *  Copyright: 1996-1998 Alejandro Aguilar Sierra
   8 *
   9 *  Version: 0.4, Lyx project.
  10 *
  11 *   You are free to use and modify this code under the terms of
  12 *   the GNU General Public Licence version 2 or later.
  13 */
  14
  15 #include <config.h>
  16 #include <fstream>
  17
  18 #include "Lsstream.h"
  19 #include "support/LAssert.h"
  20
  21 #ifdef __GNUG__
  22 #pragma implementation
  23 #endif
  24
  25 #include "formula.h"
  26 #include "formulamacro.h"
  27 #include "commandtags.h"
  28 #include "BufferView.h"
  29 #include "lyxtext.h"
  30 #include "lyxfunc.h"
  31 #include "gettext.h"
  32 #include "LaTeXFeatures.h"
  33 #include "debug.h"
  34 #include "math_support.h"
  35 #include "support/lstrings.h"
  36 #include "LyXView.h"
  37 #include "Painter.h"
  38 #include "font.h"
  39 #include "Lsstream.h"
  40 #include "math_arrayinset.h"
  41 #include "math_charinset.h"
  42 #include "math_cursor.h"
  43 #include "math_factory.h"
  44 #include "math_hullinset.h"
  45 #include "math_iterator.h"
  46 #include "math_macrotable.h"
  47 #include "math_parser.h"
  48 #include "math_pos.h"
  49 #include "math_spaceinset.h"
  50 #include "undo_funcs.h"
  51 #include "textpainter.h"
  52 #include "frontends/Dialogs.h"
  53 #include "intl.h"
  54
  55 using std::endl;
  56 using std::ostream;
  57 using std::vector;
  58
  59 MathCursor * mathcursor = 0;
  60
  61
  62 namespace {
  63
  64
  65 // local global
  66 int first_x;
  67 int first_y;
  68
  69
  70 void handleFont(BufferView * bv, string const & arg, MathTextCodes t)
  71 {
  72         if (mathcursor->selection())
  73                 bv->lockedInsetStoreUndo(Undo::EDIT);
  74         mathcursor->handleFont(t);
  75         for (string::const_iterator it = arg.begin(); it != arg.end(); ++it)
  76                 mathcursor->insert(*it);
  77 }
  78
  79
  80 bool openNewInset(BufferView * bv, UpdatableInset * new_inset)
  81 {
  82         if (!bv->insertInset(new_inset)) {
  83                 delete new_inset;
  84                 return false;
  85         }
  86         new_inset->edit(bv, 0, 0, 0);
  87         return true;
  88 }
  89
  90
  91 } // namespace anon
  92
  93
  94
  95 InsetFormulaBase::InsetFormulaBase()
  96         : view_(0), font_(), xo_(0), yo_(0)
  97 {
  98         // This is needed as long the math parser is not re-entrant
  99         MathMacroTable::builtinMacros();
 100         //lyxerr << "sizeof MathInset: " << sizeof(MathInset) << "\n";
 101         //lyxerr << "sizeof(MathMetricsInfo): " << sizeof(MathMetricsInfo) << "\n";
 102         //lyxerr << "sizeof(MathCharInset): " << sizeof(MathCharInset) << "\n";
 103 }
 104
 105
 106 // simply scrap this function if you want
 107 void InsetFormulaBase::mutateToText()
 108 {
 109 #if 0
 110         // translate to latex
 111         ostringstream os;
 112         latex(NULL, os, false, false);
 113         string str = os.str();
 114
 115         // insert this text
 116         LyXText * lt = view_->getLyXText();
 117         string::const_iterator cit = str.begin();
 118         string::const_iterator end = str.end();
 119         for (; cit != end; ++cit)
 120                 view_->owner()->getIntl()->getTrans().TranslateAndInsert(*cit, lt);
 121
 122         // remove ourselves
 123         //view_->owner()->getLyXFunc()->dispatch(LFUN_ESCAPE);
 124 #endif
 125 }
 126
 127
 128 // Check if uses AMS macros
 129 void InsetFormulaBase::validate(LaTeXFeatures &) const
 130 {}
 131
 132
 133 void InsetFormulaBase::metrics(BufferView * bv, LyXFont const & f) const
 134 {
 135         font_ = f;
 136         metrics(bv);
 137 }
 138
 139
 140 void InsetFormulaBase::metrics(BufferView * bv) const
 141 {
 142         if (bv)
 143                 view_ = bv;
 144         MathMetricsInfo mi(view_, font_, display() ? LM_ST_DISPLAY : LM_ST_TEXT);
 145         par()->metrics(mi);
 146 }
 147
 148
 149 string const InsetFormulaBase::editMessage() const
 150 {
 151         return _("Math editor mode");
 152 }
 153
 154
 155 void InsetFormulaBase::edit(BufferView * bv, int x, int /*y*/, unsigned int)
 156 {
 157         //lyxerr << "edit: " << x  << " " << y << " button: " << button << "\n";
 158         if (!bv->lockInset(this))
 159                 lyxerr[Debug::MATHED] << "Cannot lock inset!!!" << endl;
 160
 161         if (!mathcursor)
 162                 mathcursor = new MathCursor(this, x == 0);
 163         metrics(bv);
 164         // if that is removed, we won't get the magenta box when entering an
 165         // inset for the first time
 166         bv->updateInset(this, false);
 167 }
 168
 169
 170 void InsetFormulaBase::edit(BufferView * bv, bool front)
 171 {
 172         // looks hackish but seems to work
 173         edit(bv, front ? 0 : 1, 0, 0);
 174 }
 175
 176
 177 void InsetFormulaBase::insetUnlock(BufferView * bv)
 178 {
 179         if (mathcursor) {
 180                 if (mathcursor->inMacroMode()) {
 181                         mathcursor->macroModeClose();
 182                         updateLocal(bv, true);
 183                 }
 184                 delete mathcursor;
 185                 mathcursor = 0;
 186         }
 187         bv->updateInset(this, false);
 188 }
 189
 190
 191 void InsetFormulaBase::getCursorPos(BufferView *, int & x, int & y) const
 192 {
 193         mathcursor->getPos(x, y);
 194         x += xo_;
 195         y += yo_;
 196         //lyxerr << "getCursorPos: " << x << " " << y << "\n";
 197 }
 198
 199
 200 void InsetFormulaBase::toggleInsetCursor(BufferView * bv)
 201 {
 202         if (!mathcursor)
 203                 return;
 204
 205         if (isCursorVisible())
 206                 bv->hideLockedInsetCursor();
 207         else {
 208                 metrics(bv);
 209                 int x;
 210                 int y;
 211                 mathcursor->getPos(x, y);
 212                 y -= yo_;
 213                 int asc = 0;
 214                 int des = 0;
 215                 math_font_max_dim(font_, asc, des);
 216                 bv->showLockedInsetCursor(x, y, asc, des);
 217                 //lyxerr << "toggleInsetCursor: " << x << " " << y << "\n";
 218         }
 219
 220         toggleCursorVisible();
 221 }
 222
 223
 224 void InsetFormulaBase::showInsetCursor(BufferView * bv, bool)
 225 {
 226         if (isCursorVisible())
 227                 return;
 228         if (mathcursor) {
 229                 metrics(bv);
 230                 int x;
 231                 int y;
 232                 mathcursor->getPos(x, y);
 233                 y -= yo_;
 234                 int asc = 0;
 235                 int des = 0;
 236                 math_font_max_dim(font_, asc, des);
 237                 bv->fitLockedInsetCursor(x, y, asc, des);
 238                 //lyxerr << "showInsetCursor: x: " << x << " y: " << y << " yo: " << yo_ << "\n";
 239         }
 240         toggleInsetCursor(bv);
 241 }
 242
 243
 244 void InsetFormulaBase::hideInsetCursor(BufferView * bv)
 245 {
 246         if (isCursorVisible())
 247                 toggleInsetCursor(bv);
 248 }
 249
 250
 251 void InsetFormulaBase::toggleInsetSelection(BufferView * bv)
 252 {
 253         if (mathcursor)
 254                 bv->updateInset(this, false);
 255 }
 256
 257
 258 vector<string> const InsetFormulaBase::getLabelList() const
 259 {
 260   return vector<string>();
 261 }
 262
 263
 264 void InsetFormulaBase::updateLocal(BufferView * bv, bool dirty)
 265 {
 266         metrics(bv);
 267         bv->updateInset(this, dirty);
 268 }
 269
 270
 271 bool InsetFormulaBase::insetButtonRelease(BufferView * bv,
 272                                           int /*x*/, int /*y*/, int button)
 273 {
 274         //lyxerr << "insetButtonRelease: " << x << " " << y << "\n";
 275
 276         if (!mathcursor)
 277                 return false;
 278         hideInsetCursor(bv);
 279         showInsetCursor(bv);
 280         bv->updateInset(this, false);
 281
 282         if (button == 3) {
 283                 // launch math panel for right mouse button
 284                 bv->owner()->getDialogs()->showMathPanel();
 285                 return true;
 286         }
 287         return false;
 288 }
 289
 290
 291 void InsetFormulaBase::insetButtonPress(BufferView * bv,
 292                                         int x, int y, int button)
 293 {
 294         //lyxerr << "insetButtonPress: "
 295         //      << x << " " << y << " but: " << button << "\n";
 296
 297         switch (button) {
 298                 default:
 299                 case 1:
 300                         // left click
 301                         if (!mathcursor) {
 302                                 mathcursor = new MathCursor(this, x == 0);
 303                                 metrics(bv);
 304                         }
 305                         first_x = x;
 306                         first_y = y;
 307                         mathcursor->selClear();
 308                         mathcursor->setPos(x + xo_, y + yo_);
 309                         break;
 310 /*
 311                 case 2:
 312                         lyxerr << "insetButtonPress: 2\n";
 313                         // insert stuff
 314                         if (mathcursor) {
 315                                 bv->lockedInsetStoreUndo(Undo::EDIT);
 316                                 MathArray ar;
 317                                 mathcursor->selGet(ar);
 318                                 mathcursor->setPos(x + xo_, y + yo_);
 319                                 string sel =
 320                                         bv->getLyXText()->selectionAsString(bv->buffer(), false);
 321                                 mathed_parse_cell(ar, sel);
 322                                 mathcursor->insert(ar);
 323                         }
 324                         break;
 325 */
 326                 case 3:
 327                         // launch math panel for right mouse button
 328                         bv->owner()->getDialogs()->showMathPanel();
 329                         break;
 330         }
 331         bv->updateInset(this, false);
 332 }
 333
 334
 335 void InsetFormulaBase::insetMotionNotify(BufferView * bv,
 336                                          int x, int y, int /*button*/)
 337 {
 338         if (!mathcursor)
 339                 return;
 340
 341         if (abs(x - first_x) < 2 && abs(y - first_y) < 2) {
 342                 //lyxerr << "insetMotionNotify: ignored\n";
 343                 return;
 344         }
 345         first_x = x;
 346         first_y = y;
 347
 348         if (!mathcursor->selection())
 349                 mathcursor->selStart();
 350
 351         //lyxerr << "insetMotionNotify: " << x + xo_ << ' ' << y + yo_
 352         //      << ' ' << button << "\n";
 353         hideInsetCursor(bv);
 354         mathcursor->setPos(x + xo_, y + yo_);
 355         showInsetCursor(bv);
 356         bv->updateInset(this, false);
 357 }
 358
 359
 360 void InsetFormulaBase::insetKeyPress(XKeyEvent *)
 361 {
 362         lyxerr[Debug::MATHED] << "Used InsetFormulaBase::InsetKeyPress." << endl;
 363 }
 364
 365
 366 UpdatableInset::RESULT
 367 InsetFormulaBase::localDispatch(BufferView * bv, kb_action action,
 368                             string const & arg)
 369 {
 370         //lyxerr << "InsetFormulaBase::localDispatch: act: " << action
 371         //      << " arg: '" << arg << "' cursor: " << mathcursor << "\n";
 372
 373         if (!mathcursor)
 374                 return UNDISPATCHED;
 375
 376         if (mathcursor->asHyperActiveInset()) {
 377                 lyxerr << " uurr.... getting dificult now\n";
 378                 return mathcursor->asHyperActiveInset()->localDispatch(bv, action, arg);
 379         }
 380
 381         RESULT result      = DISPATCHED;
 382         bool sel           = false;
 383         bool was_macro     = mathcursor->inMacroMode();
 384         bool was_selection = mathcursor->selection();
 385
 386         hideInsetCursor(bv);
 387
 388         mathcursor->normalize();
 389         mathcursor->touch();
 390
 391         switch (action) {
 392
 393                 // --- Cursor Movements ---------------------------------------------
 394
 395         case LFUN_RIGHTSEL:
 396                 sel = true; // fall through...
 397
 398         case LFUN_RIGHT:
 399                 result = mathcursor->right(sel) ? DISPATCHED : FINISHED_RIGHT;
 400                 //lyxerr << "calling scroll 20\n";
 401                 //scroll(bv, 20);
 402                 updateLocal(bv, false);
 403                 // write something to the minibuffer
 404                 //bv->owner()->message(mathcursor->info());
 405                 break;
 406
 407
 408         case LFUN_LEFTSEL:
 409                 sel = true; // fall through
 410
 411         case LFUN_LEFT:
 412                 result = mathcursor->left(sel) ? DISPATCHED : FINISHED;
 413                 updateLocal(bv, false);
 414                 break;
 415
 416
 417         case LFUN_UPSEL:
 418                 sel = true;
 419
 420         case LFUN_UP:
 421                 result = mathcursor->up(sel) ? DISPATCHED : FINISHED_UP;
 422                 updateLocal(bv, false);
 423                 break;
 424
 425
 426         case LFUN_DOWNSEL:
 427                 sel = true;
 428
 429         case LFUN_DOWN:
 430                 result = mathcursor->down(sel) ? DISPATCHED : FINISHED_DOWN;
 431                 updateLocal(bv, false);
 432                 break;
 433
 434         case LFUN_HOMESEL:
 435                 sel = true;
 436
 437         case LFUN_HOME:
 438                 mathcursor->home(sel);
 439                 updateLocal(bv, false);
 440                 break;
 441
 442         case LFUN_ENDSEL:
 443                 sel = true;
 444
 445         case LFUN_END:
 446                 mathcursor->end(sel);
 447                 updateLocal(bv, false);
 448                 break;
 449
 450         case LFUN_DELETE_LINE_FORWARD:
 451                 bv->lockedInsetStoreUndo(Undo::DELETE);
 452                 mathcursor->delLine();
 453                 updateLocal(bv, true);
 454                 break;
 455
 456         case LFUN_TAB:
 457                 mathcursor->idxNext();
 458                 updateLocal(bv, false);
 459                 break;
 460
 461         case LFUN_SHIFT_TAB:
 462                 mathcursor->idxPrev();
 463                 updateLocal(bv, false);
 464                 break;
 465
 466         case LFUN_TABINSERT:
 467                 bv->lockedInsetStoreUndo(Undo::EDIT);
 468                 mathcursor->splitCell();
 469                 updateLocal(bv, true);
 470                 break;
 471
 472         case LFUN_DELETE_WORD_BACKWARD:
 473         case LFUN_BACKSPACE:
 474                 bv->lockedInsetStoreUndo(Undo::DELETE);
 475                 mathcursor->backspace();
 476                 bv->updateInset(this, true);
 477                 break;
 478
 479         case LFUN_DELETE_WORD_FORWARD:
 480         case LFUN_DELETE:
 481                 bv->lockedInsetStoreUndo(Undo::DELETE);
 482                 mathcursor->erase();
 483                 bv->updateInset(this, true);
 484                 break;
 485
 486         //    case LFUN_GETXY:
 487         //      sprintf(dispatch_buffer, "%d %d",);
 488         //      dispatch_result = dispatch_buffer;
 489         //      break;
 490         case LFUN_SETXY: {
 491                 lyxerr << "LFUN_SETXY broken!\n";
 492                 int x = 0;
 493                 int y = 0;
 494                 istringstream is(arg.c_str());
 495                 is >> x >> y;
 496                 mathcursor->setPos(x, y);
 497                 updateLocal(bv, false);
 498                 break;
 499         }
 500
 501         case LFUN_PASTE:
 502                 if (was_macro)
 503                         mathcursor->macroModeClose();
 504                 bv->lockedInsetStoreUndo(Undo::EDIT);
 505                 mathcursor->selPaste();
 506                 updateLocal(bv, true);
 507                 break;
 508
 509         case LFUN_CUT:
 510                 bv->lockedInsetStoreUndo(Undo::DELETE);
 511                 mathcursor->selCut();
 512                 updateLocal(bv, true);
 513                 break;
 514
 515         case LFUN_COPY:
 516                 mathcursor->selCopy();
 517                 break;
 518
 519         case LFUN_WORDRIGHTSEL:
 520         case LFUN_WORDLEFTSEL:
 521                 break;
 522
 523         // Special casing for superscript in case of LyX handling
 524         // dead-keys:
 525         case LFUN_CIRCUMFLEX:
 526                 if (arg.empty()) {
 527                         // do superscript if LyX handles
 528                         // deadkeys
 529                         bv->lockedInsetStoreUndo(Undo::EDIT);
 530                         mathcursor->script(true);
 531                         updateLocal(bv, true);
 532                 }
 533                 break;
 534         case LFUN_UMLAUT:
 535         case LFUN_ACUTE:
 536         case LFUN_GRAVE:
 537         case LFUN_BREVE:
 538         case LFUN_DOT:
 539         case LFUN_MACRON:
 540         case LFUN_CARON:
 541         case LFUN_TILDE:
 542         case LFUN_CEDILLA:
 543         case LFUN_CIRCLE:
 544         case LFUN_UNDERDOT:
 545         case LFUN_TIE:
 546         case LFUN_OGONEK:
 547         case LFUN_HUNG_UMLAUT:
 548                 break;
 549
 550         //  Math fonts
 551         case LFUN_GREEK_TOGGLE: handleFont(bv, arg, LM_TC_GREEK); break;
 552         case LFUN_BOLD:         handleFont(bv, arg, LM_TC_BF); break;
 553         case LFUN_SANS:         handleFont(bv, arg, LM_TC_SF); break;
 554         case LFUN_EMPH:         handleFont(bv, arg, LM_TC_CAL); break;
 555         case LFUN_ROMAN:        handleFont(bv, arg, LM_TC_RM); break;
 556         case LFUN_CODE:         handleFont(bv, arg, LM_TC_TT); break;
 557         case LFUN_FRAK:         handleFont(bv, arg, LM_TC_EUFRAK); break;
 558         case LFUN_ITAL:         handleFont(bv, arg, LM_TC_IT); break;
 559         case LFUN_NOUN:         handleFont(bv, arg, LM_TC_BB); break;
 560         case LFUN_DEFAULT:      handleFont(bv, arg, LM_TC_VAR); break;
 561         case LFUN_FREE:         handleFont(bv, arg, LM_TC_TEXTRM); break;
 562
 563         case LFUN_GREEK:
 564                 handleFont(bv, arg, LM_TC_GREEK1);
 565                 if (arg.size())
 566                         mathcursor->interpret(arg);
 567                 break;
 568
 569         case LFUN_MATH_MODE:
 570 #if 1
 571                 handleFont(bv, arg, LM_TC_TEXTRM);
 572 #endif
 573
 574 #if 0
 575                 mathcursor->niceInsert(MathAtom(new MathHullInset(LM_OT_SIMPLE)));
 576                 updateLocal(bv, true);
 577 #endif
 578
 579                 //bv->owner()->message(_("math text mode toggled"));
 580                 break;
 581
 582         case LFUN_MATH_LIMITS:
 583                 bv->lockedInsetStoreUndo(Undo::EDIT);
 584                 if (mathcursor->toggleLimits())
 585                         updateLocal(bv, true);
 586                 break;
 587
 588         case LFUN_MATH_SIZE:
 589 #if 0
 590                 if (!arg.empty()) {
 591                         bv->lockedInsetStoreUndo(Undo::EDIT);
 592                         mathcursor->setSize(arg);
 593                         updateLocal(bv, true);
 594                 }
 595 #endif
 596                 break;
 597
 598         case LFUN_INSERT_MATRIX:
 599                 if (!arg.empty()) {
 600                         bv->lockedInsetStoreUndo(Undo::EDIT);
 601                         mathcursor->interpret("matrix " + arg);
 602                         updateLocal(bv, true);
 603                 }
 604                 break;
 605
 606         case LFUN_MATH_SPACE:
 607         {
 608                 bv->lockedInsetStoreUndo(Undo::EDIT);
 609                 mathcursor->insert(MathAtom(new MathSpaceInset(1)));
 610                 updateLocal(bv, true);
 611                 break;
 612         }
 613
 614         case LFUN_SUPERSCRIPT:
 615         case LFUN_SUBSCRIPT:
 616         {
 617                 bv->lockedInsetStoreUndo(Undo::EDIT);
 618                 mathcursor->script((action == LFUN_SUPERSCRIPT));
 619                 updateLocal(bv, true);
 620                 break;
 621         }
 622
 623         case LFUN_MATH_DELIM:
 624         {
 625                 lyxerr << "formulabase::LFUN_MATH_DELIM, arg: '" << arg << "'\n";
 626                 string ls;
 627                 string rs;
 628                 istringstream is(arg.c_str());
 629                 is >> ls >> rs;
 630                 if (!is) {
 631                         lyxerr << "can't parse delimeters from '" << arg << "'\n";
 632                         break;
 633                 }
 634                 bv->lockedInsetStoreUndo(Undo::EDIT);
 635                 mathcursor->handleDelim(ls, rs);
 636                 updateLocal(bv, true);
 637                 break;
 638         }
 639
 640         case LFUN_PROTECTEDSPACE:
 641                 //lyxerr << " called LFUN_PROTECTEDSPACE\n";
 642                 bv->lockedInsetStoreUndo(Undo::EDIT);
 643                 mathcursor->insert(MathAtom(new MathSpaceInset(1)));
 644                 updateLocal(bv, true);
 645                 break;
 646
 647         case LFUN_UNDO:
 648                 bv->owner()->message(_("Invalid action in math mode!"));
 649                 break;
 650
 651
 652         case LFUN_MATH_HALIGN:
 653         case LFUN_MATH_VALIGN:
 654         case LFUN_MATH_ROW_INSERT:
 655         case LFUN_MATH_ROW_DELETE:
 656         case LFUN_MATH_COLUMN_INSERT:
 657         case LFUN_MATH_COLUMN_DELETE:
 658         {
 659                 MathInset::idx_type idx = 0;
 660                 MathGridInset * p = mathcursor ? mathcursor->enclosingGrid(idx) : 0;
 661                 if (p) {
 662                         mathcursor->popToEnclosingGrid();
 663                         bv->lockedInsetStoreUndo(Undo::EDIT);
 664                         char align = arg.size() ? arg[0] : 'c';
 665                         switch (action) {
 666                                 case LFUN_MATH_HALIGN: p->halign(align, p->col(idx)); break;
 667                                 case LFUN_MATH_VALIGN: p->valign(align); break;
 668                                 case LFUN_MATH_ROW_INSERT: p->addRow(p->row(idx)); break;
 669                                 case LFUN_MATH_ROW_DELETE: p->delRow(p->row(idx)); break;
 670                                 case LFUN_MATH_COLUMN_INSERT: p->addCol(p->col(idx)); break;
 671                                 case LFUN_MATH_COLUMN_DELETE: p->delCol(p->col(idx)); break;
 672                                 default: ;
 673                         }
 674                         updateLocal(bv, true);
 675                 }
 676                 break;
 677         }
 678
 679         case LFUN_EXEC_COMMAND:
 680                 result = UNDISPATCHED;
 681                 break;
 682
 683         case LFUN_BREAKPARAGRAPH:
 684         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
 685                 //lyxerr << "LFUN ignored\n";
 686                 break;
 687
 688         case LFUN_INSET_ERT:
 689                 // interpret this as if a backslash was typed
 690                 bv->lockedInsetStoreUndo(Undo::EDIT);
 691                 mathcursor->interpret('\\');
 692                 updateLocal(bv, true);
 693                 break;
 694
 695         case -1:
 696         case LFUN_INSERT_MATH:
 697         case LFUN_SELFINSERT:
 698                 if (!arg.empty()) {
 699                         bv->lockedInsetStoreUndo(Undo::EDIT);
 700                         if (arg.size() == 1)
 701                                 result = mathcursor->interpret(arg[0]) ? DISPATCHED : FINISHED_RIGHT;
 702                         else
 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         mathcursor->touch();
 725
 726         lyx::Assert(mathcursor);
 727
 728         if (mathcursor->selection() || was_selection)
 729                 toggleInsetSelection(bv);
 730
 731         if (result == DISPATCHED || result == DISPATCHED_NOUPDATE ||
 732             result == UNDISPATCHED)
 733                 showInsetCursor(bv);
 734         else
 735                 bv->unlockInset(this);
 736
 737         revealCodes(bv);
 738
 739         return result;  // original version
 740 }
 741
 742
 743 void InsetFormulaBase::revealCodes(BufferView * /*bv*/) const
 744 {
 745         if (!mathcursor)
 746                 return;
 747 #if 0
 748         // write something to the minibuffer
 749         // translate to latex
 750         mathcursor->markInsert();
 751         ostringstream os;
 752         write(NULL, os);
 753         string str = os.str();
 754         mathcursor->markErase();
 755         string::size_type pos = 0;
 756         string res;
 757         for (string::iterator it = str.begin(); it != str.end(); ++it) {
 758                 if (*it == '\n')
 759                         res += ' ';
 760                 else if (*it == '\0') {
 761                         res += "  -X-  ";
 762                         pos = it - str.begin();
 763                 }
 764                 else
 765                         res += *it;
 766         }
 767         if (pos > 30)
 768                 res = res.substr(pos - 30);
 769         if (res.size() > 60)
 770                 res = res.substr(0, 60);
 771         bv->owner()->message(res);
 772 #endif
 773 }
 774
 775
 776 Inset::Code InsetFormulaBase::lyxCode() const
 777 {
 778         return Inset::MATH_CODE;
 779 }
 780
 781
 782 int InsetFormulaBase::ylow() const
 783 {
 784         return yo_ - ascent(view_, font_);
 785 }
 786
 787
 788 int InsetFormulaBase::yhigh() const
 789 {
 790         return yo_ + descent(view_, font_);
 791 }
 792
 793
 794 int InsetFormulaBase::xlow() const
 795 {
 796         return xo_;
 797 }
 798
 799
 800 int InsetFormulaBase::xhigh() const
 801 {
 802         return xo_ + width(view_, font_);
 803 }
 804
 805
 806 /////////////////////////////////////////////////////////////////////
 807
 808
 809 bool InsetFormulaBase::searchForward(BufferView * bv, string const & str,
 810                                      bool, bool)
 811 {
 812 #ifdef WITH_WARNINGS
 813 #warning pretty ugly
 814 #endif
 815         static InsetFormulaBase * lastformula = 0;
 816         static MathIterator current = MathIterator(ibegin(par().nucleus()));
 817         static MathArray ar;
 818         static string laststr;
 819
 820         if (lastformula != this || laststr != str) {
 821                 //lyxerr << "reset lastformula to " << this << "\n";
 822                 lastformula = this;
 823                 laststr = str;
 824                 current = ibegin(par().nucleus());
 825                 ar.clear();
 826                 mathed_parse_cell(ar, str);
 827         } else {
 828                 ++current;
 829         }
 830         //lyxerr << "searching '" << str << "' in " << this << ar << endl;
 831
 832         for (MathIterator it = current; it != iend(par().nucleus()); ++it) {
 833                 if (it.cell().matchpart(ar, it.position().pos_)) {
 834                         mathcursor->setSelection(it.cursor(), ar.size());
 835                         current = it;
 836                         it.jump(ar.size());
 837                         // I guess some of the following can go
 838                         bv->toggleSelection(true);
 839                         hideInsetCursor(bv);
 840                         updateLocal(bv, true);
 841                         showInsetCursor(bv);
 842                         metrics(bv);
 843                         return true;
 844                 }
 845         }
 846
 847         //lyxerr << "not found!\n";
 848         lastformula = 0;
 849         // we have to unlock ourself in this function by default!
 850         // don't ask me why...
 851         bv->unlockInset(this);
 852         return false;
 853 }
 854
 855
 856 bool InsetFormulaBase::searchBackward(BufferView * bv, string const & what,
 857                                       bool a, bool b)
 858 {
 859         lyxerr << "searching backward not implemented in mathed" << endl;
 860         return searchForward(bv, what, a, b);
 861 }
 862
 863
 864 /////////////////////////////////////////////////////////////////////
 865
 866
 867 void mathDispatchCreation(BufferView * bv, string const & arg, bool display)
 868 {
 869         if (bv->available()) {
 870                 // use selection if available..
 871                 //string sel;
 872                 //if (action == LFUN_MATH_IMPORT_SELECTION)
 873                 //      sel = "";
 874                 //else
 875
 876                 string sel = bv->getLyXText()->selectionAsString(bv->buffer(), false);
 877
 878                 InsetFormulaBase * f;
 879                 if (sel.empty()) {
 880                         f = new InsetFormula;
 881                         if (openNewInset(bv, f)) {
 882                                 // don't do that also for LFUN_MATH_MODE unless you want end up with
 883                                 // always changing to mathrm when opening an inlined inset
 884                                 // -- I really hate "LyXfunc overloading"...
 885                                 if (display)
 886                                         f->localDispatch(bv, LFUN_MATH_DISPLAY, string());
 887                                 f->localDispatch(bv, LFUN_INSERT_MATH, arg);
 888                         }
 889                 } else {
 890                         // create a macro if we see "\\newcommand" somewhere, and an ordinary
 891                         // formula otherwise
 892                         if (sel.find("\\newcommand") == string::npos &&
 893                                   sel.find("\\def") == string::npos)
 894                                 f = new InsetFormula(sel);
 895                         else {
 896                                 string name;
 897                                 if (!mathed_parse_macro(name, sel))
 898                                         return;
 899                                 f = new InsetFormulaMacro(sel);
 900                         }
 901                         bv->getLyXText()->cutSelection(bv);
 902                         openNewInset(bv, f);
 903                 }
 904         }
 905         bv->owner()->getLyXFunc()->setMessage(N_("Math editor mode"));
 906 }
 907
 908
 909 void mathDispatchMathDisplay(BufferView * bv, string const & arg)
 910 {
 911         mathDispatchCreation(bv, arg, true);
 912 }
 913
 914
 915 void mathDispatchMathMode(BufferView * bv, string const & arg)
 916 {
 917         mathDispatchCreation(bv, arg, false);
 918 }
 919
 920
 921 void mathDispatchMathImportSelection(BufferView * bv, string const & arg)
 922 {
 923         mathDispatchCreation(bv, arg, true);
 924 }
 925
 926
 927 void mathDispatchMathMacro(BufferView * bv, string const & arg)
 928 {
 929         if (bv->available()) {
 930                 if (arg.empty())
 931                         bv->owner()->getLyXFunc()->setErrorMessage(N_("Missing argument"));
 932                 else {
 933                         string s = arg;
 934                         string const s1 = token(s, ' ', 1);
 935                         int const na = s1.empty() ? 0 : lyx::atoi(s1);
 936                         openNewInset(bv, new InsetFormulaMacro(token(s, ' ', 0), na));
 937                 }
 938         }
 939 }
 940
 941
 942 void mathDispatchMathDelim(BufferView * bv, string const & arg)
 943 {
 944         if (bv->available()) {
 945                 if (openNewInset(bv, new InsetFormula))
 946                         bv->theLockingInset()->localDispatch(bv, LFUN_MATH_DELIM, arg);
 947         }
 948 }
 949
 950
 951 void mathDispatchInsertMatrix(BufferView * bv, string const & arg)
 952 {
 953         if (bv->available()) {
 954                 if (openNewInset(bv, new InsetFormula))
 955                         bv->theLockingInset()->localDispatch(bv, LFUN_INSERT_MATRIX, arg);
 956         }
 957 }
 958
 959
 960 void mathDispatchInsertMath(BufferView * bv, string const & arg)
 961 {
 962         if (bv->available()) {
 963                 if (arg.size() && arg[0] == '\\') {
 964                         InsetFormula * f = new InsetFormula(arg);
 965                         if (!bv->insertInset(f))
 966                                 delete f;
 967                 } else
 968                         mathDispatchMathMode(bv, arg);
 969         }
 970 }
 971
 972
 973 void mathDispatchGreek(BufferView * bv, string const & arg)
 974 {
 975         if (bv->available()) {
 976                 InsetFormula * f = new InsetFormula;
 977                 if (openNewInset(bv, f)) {
 978                         bv->theLockingInset()->localDispatch(bv, LFUN_GREEK, arg);
 979                         bv->unlockInset(f);
 980                 }
 981         }
 982 }
 983
 984
 985 void mathDispatch(BufferView *, kb_action, string const &)
 986 {}