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