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                 //handleFont(bv, arg, LM_TC_TEXTRM);
 575
 576                 //mathcursor->niceInsert(MathAtom(new MathHullInset(LM_OT_SIMPLE)));
 577                 //updateLocal(bv, true);
 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                         bv->lockedInsetStoreUndo(Undo::EDIT);
 663                         char al = arg.size() ? arg[0] : 'c';
 664                         switch (action) {
 665                                 case LFUN_MATH_HALIGN: p->halign(al, p->col(idx)); break;
 666                                 case LFUN_MATH_VALIGN: p->valign(al); break;
 667                                 case LFUN_MATH_ROW_INSERT: p->addRow(p->row(idx)); break;
 668                                 case LFUN_MATH_ROW_DELETE: p->delRow(p->row(idx)); break;
 669                                 case LFUN_MATH_COLUMN_INSERT: p->addCol(p->col(idx)); break;
 670                                 case LFUN_MATH_COLUMN_DELETE: p->delCol(p->col(idx)); break;
 671                                 default: ;
 672                         }
 673                         updateLocal(bv, true);
 674                 }
 675                 break;
 676         }
 677
 678         case LFUN_EXEC_COMMAND:
 679                 result = UNDISPATCHED;
 680                 break;
 681
 682         case LFUN_BREAKPARAGRAPH:
 683         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
 684                 //lyxerr << "LFUN ignored\n";
 685                 break;
 686
 687         case LFUN_INSET_ERT:
 688                 // interpret this as if a backslash was typed
 689                 bv->lockedInsetStoreUndo(Undo::EDIT);
 690                 mathcursor->interpret("\\");
 691                 updateLocal(bv, true);
 692                 break;
 693
 694         case -1:
 695         case LFUN_INSERT_MATH:
 696         case LFUN_SELFINSERT:
 697                 if (!arg.empty()) {
 698                         bv->lockedInsetStoreUndo(Undo::EDIT);
 699                         result = mathcursor->interpret(arg) ? DISPATCHED : FINISHED_RIGHT;
 700                         updateLocal(bv, true);
 701                 }
 702                 break;
 703
 704         case LFUN_MATH_PANEL:
 705                 result = UNDISPATCHED;
 706                 break;
 707
 708         case LFUN_ESCAPE:
 709                 if (mathcursor->selection())
 710                         mathcursor->selClear();
 711                 else
 712                         result = UNDISPATCHED;
 713                 break;
 714
 715         default:
 716                 result = UNDISPATCHED;
 717         }
 718
 719         mathcursor->normalize();
 720
 721         lyx::Assert(mathcursor);
 722
 723         if (mathcursor->selection() || was_selection)
 724                 toggleInsetSelection(bv);
 725
 726         if (result == DISPATCHED || result == DISPATCHED_NOUPDATE ||
 727             result == UNDISPATCHED)
 728                 showInsetCursor(bv);
 729         else
 730                 bv->unlockInset(this);
 731
 732         return result;  // original version
 733 }
 734
 735
 736 Inset::Code InsetFormulaBase::lyxCode() const
 737 {
 738         return Inset::MATH_CODE;
 739 }
 740
 741
 742 int InsetFormulaBase::ylow() const
 743 {
 744         return yo_ - ascent(view_, font_);
 745 }
 746
 747
 748 int InsetFormulaBase::yhigh() const
 749 {
 750         return yo_ + descent(view_, font_);
 751 }
 752
 753
 754 int InsetFormulaBase::xlow() const
 755 {
 756         return xo_;
 757 }
 758
 759
 760 int InsetFormulaBase::xhigh() const
 761 {
 762         return xo_ + width(view_, font_);
 763 }
 764
 765
 766 /////////////////////////////////////////////////////////////////////
 767
 768
 769 bool InsetFormulaBase::searchForward(BufferView * bv, string const & str,
 770                                      bool, bool)
 771 {
 772 #ifdef WITH_WARNINGS
 773 #warning pretty ugly
 774 #endif
 775         static InsetFormulaBase * lastformula = 0;
 776         static MathIterator current = MathIterator(ibegin(par().nucleus()));
 777         static MathArray ar;
 778         static string laststr;
 779
 780         if (lastformula != this || laststr != str) {
 781                 //lyxerr << "reset lastformula to " << this << "\n";
 782                 lastformula = this;
 783                 laststr = str;
 784                 current = ibegin(par().nucleus());
 785                 ar.clear();
 786                 mathed_parse_cell(ar, str);
 787         } else {
 788                 ++current;
 789         }
 790         //lyxerr << "searching '" << str << "' in " << this << ar << endl;
 791
 792         for (MathIterator it = current; it != iend(par().nucleus()); ++it) {
 793                 if (it.cell().matchpart(ar, it.position().pos_)) {
 794                         mathcursor->setSelection(it.cursor(), ar.size());
 795                         current = it;
 796                         it.jump(ar.size());
 797                         // I guess some of the following can go
 798                         bv->toggleSelection(true);
 799                         hideInsetCursor(bv);
 800                         updateLocal(bv, true);
 801                         showInsetCursor(bv);
 802                         metrics(bv);
 803                         return true;
 804                 }
 805         }
 806
 807         //lyxerr << "not found!\n";
 808         lastformula = 0;
 809         // we have to unlock ourself in this function by default!
 810         // don't ask me why...
 811         bv->unlockInset(this);
 812         return false;
 813 }
 814
 815
 816 bool InsetFormulaBase::searchBackward(BufferView * bv, string const & what,
 817                                       bool a, bool b)
 818 {
 819         lyxerr << "searching backward not implemented in mathed" << endl;
 820         return searchForward(bv, what, a, b);
 821 }
 822
 823
 824 /////////////////////////////////////////////////////////////////////
 825
 826
 827 void mathDispatchCreation(BufferView * bv, string const & arg, bool display)
 828 {
 829         if (bv->available()) {
 830                 // use selection if available..
 831                 //string sel;
 832                 //if (action == LFUN_MATH_IMPORT_SELECTION)
 833                 //      sel = "";
 834                 //else
 835
 836                 string sel = bv->getLyXText()->selectionAsString(bv->buffer(), false);
 837
 838                 InsetFormulaBase * f;
 839                 if (sel.empty()) {
 840                         f = new InsetFormula;
 841                         if (openNewInset(bv, f)) {
 842                                 // don't do that also for LFUN_MATH_MODE unless you want end up with
 843                                 // always changing to mathrm when opening an inlined inset
 844                                 // -- I really hate "LyXfunc overloading"...
 845                                 if (display)
 846                                         f->localDispatch(bv, LFUN_MATH_DISPLAY, string());
 847                                 f->localDispatch(bv, LFUN_INSERT_MATH, arg);
 848                         }
 849                 } else {
 850                         // create a macro if we see "\\newcommand" somewhere, and an ordinary
 851                         // formula otherwise
 852                         if (sel.find("\\newcommand") == string::npos)
 853                                 f = new InsetFormula(sel);
 854                         else {
 855                                 string name;
 856                                 if (!mathed_parse_macro(name, sel))
 857                                         return;
 858                                 f = new InsetFormulaMacro(sel);
 859                         }
 860                         bv->getLyXText()->cutSelection(bv);
 861                         openNewInset(bv, f);
 862                 }
 863         }
 864         bv->owner()->getLyXFunc()->setMessage(N_("Math editor mode"));
 865 }
 866
 867
 868 void mathDispatchMathDisplay(BufferView * bv, string const & arg)
 869 {
 870         mathDispatchCreation(bv, arg, true);
 871 }
 872
 873
 874 void mathDispatchMathMode(BufferView * bv, string const & arg)
 875 {
 876         mathDispatchCreation(bv, arg, false);
 877 }
 878
 879
 880 void mathDispatchMathImportSelection(BufferView * bv, string const & arg)
 881 {
 882         mathDispatchCreation(bv, arg, true);
 883 }
 884
 885
 886 void mathDispatchMathMacro(BufferView * bv, string const & arg)
 887 {
 888         if (bv->available()) {
 889                 if (arg.empty())
 890                         bv->owner()->getLyXFunc()->setErrorMessage(N_("Missing argument"));
 891                 else {
 892                         string s(arg);
 893                         string const s1 = token(s, ' ', 1);
 894                         int const na = s1.empty() ? 0 : lyx::atoi(s1);
 895                         openNewInset(bv, new InsetFormulaMacro(token(s, ' ', 0), na));
 896                 }
 897         }
 898 }
 899
 900
 901 void mathDispatchMathDelim(BufferView * bv, string const & arg)
 902 {
 903         if (bv->available()) {
 904                 if (openNewInset(bv, new InsetFormula))
 905                         bv->theLockingInset()->localDispatch(bv, LFUN_MATH_DELIM, arg);
 906         }
 907 }
 908
 909
 910 void mathDispatchInsertMatrix(BufferView * bv, string const & arg)
 911 {
 912         if (bv->available()) {
 913                 if (openNewInset(bv, new InsetFormula))
 914                         bv->theLockingInset()->localDispatch(bv, LFUN_INSERT_MATRIX, arg);
 915         }
 916 }
 917
 918
 919 void mathDispatchInsertMath(BufferView * bv, string const & arg)
 920 {
 921         if (bv->available()) {
 922                 if (arg.size() && arg[0] == '\\') {
 923                         InsetFormula * f = new InsetFormula(arg);
 924                         if (!bv->insertInset(f))
 925                                 delete f;
 926                 } else
 927                         mathDispatchMathMode(bv, arg);
 928         }
 929 }
 930
 931
 932 void mathDispatchGreek(BufferView * bv, string const & arg)
 933 {
 934         if (bv->available()) {
 935                 InsetFormula * f = new InsetFormula;
 936                 if (openNewInset(bv, f)) {
 937                         bv->theLockingInset()->localDispatch(bv, LFUN_GREEK, arg);
 938                         bv->unlockInset(f);
 939                 }
 940         }
 941 }
 942
 943
 944 void mathDispatch(BufferView *, kb_action, string const &)
 945 {}