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 "math_arrayinset.h"
  40 #include "math_cursor.h"
  41 #include "math_factory.h"
  42 #include "math_hullinset.h"
  43 #include "math_iterator.h"
  44 #include "math_macrotable.h"
  45 #include "math_parser.h"
  46 #include "math_pos.h"
  47 #include "math_spaceinset.h"
  48 #include "undo_funcs.h"
  49
  50 using std::endl;
  51 using std::ostream;
  52 using std::vector;
  53
  54 MathCursor * mathcursor = 0;
  55
  56
  57 namespace {
  58
  59
  60 // local global
  61 int first_x;
  62 int first_y;
  63 int hack_x;
  64 int hack_y;
  65 int hack_button;
  66
  67
  68 void handleFont(BufferView * bv, MathTextCodes t)
  69 {
  70         if (mathcursor->selection())
  71                 bv->lockedInsetStoreUndo(Undo::EDIT);
  72         mathcursor->handleFont(t);
  73 }
  74
  75
  76 void handleAccent(BufferView * bv, string const & name)
  77 {
  78         bv->lockedInsetStoreUndo(Undo::EDIT);
  79         mathcursor->insert(createMathInset(name));
  80 }
  81
  82
  83 bool openNewInset(BufferView * bv, UpdatableInset * new_inset)
  84 {
  85         if (!bv->insertInset(new_inset)) {
  86                 delete new_inset;
  87                 return false;
  88         }
  89         new_inset->edit(bv, 0, 0, 0);
  90         return true;
  91 }
  92
  93
  94 } // namespace anon
  95
  96
  97
  98 InsetFormulaBase::InsetFormulaBase()
  99         : view_(0), font_(), xo_(0), yo_(0)
 100 {
 101         // This is needed as long the math parser is not re-entrant
 102         MathMacroTable::builtinMacros();
 103         //lyxerr << "sizeof MathInset: " << sizeof(MathInset) << "\n";
 104 }
 105
 106
 107 // Check if uses AMS macros
 108 void InsetFormulaBase::validate(LaTeXFeatures &) const
 109 {}
 110
 111
 112 void InsetFormulaBase::metrics(BufferView * bv, LyXFont const & f) const
 113 {
 114         font_ = f;
 115         metrics(bv);
 116 }
 117
 118
 119 void InsetFormulaBase::metrics(BufferView * bv) const
 120 {
 121         if (bv)
 122                 view_ = bv;
 123         MathMetricsInfo mi(view_, font_, display() ? LM_ST_DISPLAY : LM_ST_TEXT);
 124         par()->metrics(mi);
 125 }
 126
 127
 128 string const InsetFormulaBase::editMessage() const
 129 {
 130         return _("Math editor mode");
 131 }
 132
 133
 134 void InsetFormulaBase::edit(BufferView * bv, int x, int /*y*/, unsigned int)
 135 {
 136         if (!bv->lockInset(this))
 137                 lyxerr[Debug::MATHED] << "Cannot lock inset!!!" << endl;
 138
 139         //lyxerr << "edit: " << x  << " " << y << " button: " << button << "\n";
 140         if (!mathcursor) {
 141                 mathcursor = new MathCursor(this, x == 0);
 142                 metrics(bv);
 143                 // handle ignored click
 144                 if (hack_x || hack_y) {
 145                         insetButtonPress(bv, hack_x, hack_y, hack_button);
 146                         hack_x = hack_y = 0;
 147                 }
 148         } else
 149                 metrics(bv);
 150         // if that is removed, we won't get the magenta box when entering an
 151         // inset for the first time
 152         bv->updateInset(this, false);
 153 }
 154
 155
 156 void InsetFormulaBase::edit(BufferView * bv, bool front)
 157 {
 158         // looks hackish but seems to work
 159         edit(bv, front ? 0 : 1, 0, 0);
 160 }
 161
 162
 163 void InsetFormulaBase::insetUnlock(BufferView * bv)
 164 {
 165         if (mathcursor) {
 166                 if (mathcursor->inMacroMode()) {
 167                         mathcursor->macroModeClose();
 168                         updateLocal(bv, true);
 169                 }
 170                 delete mathcursor;
 171                 mathcursor = 0;
 172         }
 173         bv->updateInset(this, false);
 174 }
 175
 176
 177 void InsetFormulaBase::getCursorPos(BufferView *, int & x, int & y) const
 178 {
 179         mathcursor->getPos(x, y);
 180         x += xo_;
 181         y += yo_;
 182         //lyxerr << "getCursorPos: " << x << " " << y << "\n";
 183 }
 184
 185
 186 void InsetFormulaBase::toggleInsetCursor(BufferView * bv)
 187 {
 188         if (!mathcursor)
 189                 return;
 190
 191         if (isCursorVisible())
 192                 bv->hideLockedInsetCursor();
 193         else {
 194                 metrics(bv);
 195                 int x;
 196                 int y;
 197                 mathcursor->getPos(x, y);
 198                 y -= yo_;
 199                 int asc = 0;
 200                 int des = 0;
 201                 MathMetricsInfo mi(bv, font_, display() ? LM_ST_DISPLAY : LM_ST_TEXT);
 202                 math_font_max_dim(LM_TC_TEXTRM, mi, asc, des);
 203                 bv->showLockedInsetCursor(x, y, asc, des);
 204                 //lyxerr << "toggleInsetCursor: " << x << " " << y << "\n";
 205         }
 206
 207         toggleCursorVisible();
 208 }
 209
 210
 211 void InsetFormulaBase::showInsetCursor(BufferView * bv, bool)
 212 {
 213         if (isCursorVisible())
 214                 return;
 215         if (mathcursor) {
 216                 metrics(bv);
 217                 int x;
 218                 int y;
 219                 mathcursor->getPos(x, y);
 220                 y -= yo_;
 221                 int asc = 0;
 222                 int des = 0;
 223                 MathMetricsInfo mi(bv, font_, display() ? LM_ST_DISPLAY : LM_ST_TEXT);
 224                 math_font_max_dim(LM_TC_TEXTRM, mi, asc, des);
 225                 bv->fitLockedInsetCursor(x, y, asc, des);
 226                 //lyxerr << "showInsetCursor: x: " << x << " y: " << y << " yo: " << yo_ << "\n";
 227         }
 228         toggleInsetCursor(bv);
 229 }
 230
 231
 232 void InsetFormulaBase::hideInsetCursor(BufferView * bv)
 233 {
 234         if (isCursorVisible())
 235                 toggleInsetCursor(bv);
 236 }
 237
 238
 239 void InsetFormulaBase::toggleInsetSelection(BufferView * bv)
 240 {
 241         if (mathcursor)
 242                 bv->updateInset(this, false);
 243 }
 244
 245
 246 vector<string> const InsetFormulaBase::getLabelList() const
 247 {
 248   return std::vector<string>();
 249 }
 250
 251
 252 void InsetFormulaBase::updateLocal(BufferView * bv, bool dirty)
 253 {
 254         metrics(bv);
 255         bv->updateInset(this, dirty);
 256 }
 257
 258
 259 bool InsetFormulaBase::insetButtonRelease(BufferView * bv,
 260                                           int /*x*/, int /*y*/, int /*button*/)
 261 {
 262         if (!mathcursor)
 263                 return false;
 264         //lyxerr << "insetButtonRelease: " << x << " " << y << "\n";
 265         hideInsetCursor(bv);
 266         showInsetCursor(bv);
 267         bv->updateInset(this, false);
 268         return false;
 269 }
 270
 271
 272 void InsetFormulaBase::insetButtonPress(BufferView * bv,
 273                                         int x, int y, int button)
 274 {
 275         // hack to cope with mouseclick that comes before the call to edit()
 276         if (!mathcursor) {
 277                 hack_x = x;
 278                 hack_y = y;
 279                 hack_button = button;
 280                 return;
 281         }
 282
 283         lyxerr << "insetButtonPress: " << x + xo_ << " " << y + yo_
 284                 << " but: " << button << "\n";
 285         switch (button) {
 286                 default:
 287                 case 1:
 288                         // just click
 289                         first_x = x;
 290                         first_y = y;
 291                         if (mathcursor) {
 292                                 mathcursor->selClear();
 293                                 mathcursor->setPos(x + xo_, y + yo_);
 294                         }
 295                         break;
 296 /*
 297                 case 2:
 298                         lyxerr << "insetButtonPress: 2\n";
 299                         // insert stuff
 300                         if (mathcursor) {
 301                                 bv->lockedInsetStoreUndo(Undo::EDIT);
 302                                 MathArray ar;
 303                                 mathcursor->selGet(ar);
 304                                 mathcursor->setPos(x + xo_, y + yo_);
 305                                 string sel =
 306                                         bv->getLyXText()->selectionAsString(bv->buffer(), false);
 307                                 mathed_parse_cell(ar, sel);
 308                                 mathcursor->insert(ar);
 309                         }
 310                         break;
 311 */
 312         }
 313         bv->updateInset(this, false);
 314 }
 315
 316
 317 void InsetFormulaBase::insetMotionNotify(BufferView * bv,
 318                                          int x, int y, int /*button*/)
 319 {
 320         if (!mathcursor)
 321                 return;
 322
 323         if (abs(x - first_x) < 2 && abs(y - first_y) < 2) {
 324                 //lyxerr << "insetMotionNotify: ignored\n";
 325                 return;
 326         }
 327         first_x = x;
 328         first_y = y;
 329
 330         if (!mathcursor->selection())
 331                 mathcursor->selStart();
 332
 333         //lyxerr << "insetMotionNotify: " << x + xo_ << ' ' << y + yo_
 334         //      << ' ' << button << "\n";
 335         hideInsetCursor(bv);
 336         mathcursor->setPos(x + xo_, y + yo_);
 337         showInsetCursor(bv);
 338         bv->updateInset(this, false);
 339 }
 340
 341
 342 void InsetFormulaBase::insetKeyPress(XKeyEvent *)
 343 {
 344         lyxerr[Debug::MATHED] << "Used InsetFormulaBase::InsetKeyPress." << endl;
 345 }
 346
 347
 348 UpdatableInset::RESULT
 349 InsetFormulaBase::localDispatch(BufferView * bv, kb_action action,
 350                             string const & arg)
 351 {
 352         //lyxerr << "InsetFormulaBase::localDispatch: act: " << action
 353         //      << " arg: '" << arg << "' cursor: " << mathcursor << "\n";
 354
 355         if (!mathcursor)
 356                 return UNDISPATCHED;
 357
 358         if (mathcursor->asHyperActiveInset()) {
 359                 lyxerr << " uurr.... getting dificult now\n";
 360                 return mathcursor->asHyperActiveInset()->localDispatch(bv, action, arg);
 361         }
 362
 363         RESULT result      = DISPATCHED;
 364         bool sel           = false;
 365         bool was_macro     = mathcursor->inMacroMode();
 366         bool was_selection = mathcursor->selection();
 367
 368         hideInsetCursor(bv);
 369
 370         mathcursor->normalize();
 371         switch (action) {
 372
 373                 // --- Cursor Movements ---------------------------------------------
 374
 375         case LFUN_RIGHTSEL:
 376                 sel = true; // fall through...
 377
 378         case LFUN_RIGHT:
 379                 result = mathcursor->right(sel) ? DISPATCHED : FINISHED_RIGHT;
 380                 updateLocal(bv, false);
 381                 // write something to the minibuffer
 382                 //bv->owner()->message(mathcursor->info());
 383                 break;
 384
 385
 386         case LFUN_LEFTSEL:
 387                 sel = true; // fall through
 388
 389         case LFUN_LEFT:
 390                 result = mathcursor->left(sel) ? DISPATCHED : FINISHED;
 391                 updateLocal(bv, false);
 392                 break;
 393
 394
 395         case LFUN_UPSEL:
 396                 sel = true;
 397
 398         case LFUN_UP:
 399                 result = mathcursor->up(sel) ? DISPATCHED : FINISHED_UP;
 400                 updateLocal(bv, false);
 401                 break;
 402
 403
 404         case LFUN_DOWNSEL:
 405                 sel = true;
 406
 407         case LFUN_DOWN:
 408                 result = mathcursor->down(sel) ? DISPATCHED : FINISHED_DOWN;
 409                 updateLocal(bv, false);
 410                 break;
 411
 412         case LFUN_HOMESEL:
 413                 sel = true;
 414
 415         case LFUN_HOME:
 416                 mathcursor->home(sel);
 417                 updateLocal(bv, false);
 418                 break;
 419
 420         case LFUN_ENDSEL:
 421                 sel = true;
 422
 423         case LFUN_END:
 424                 mathcursor->end(sel);
 425                 updateLocal(bv, false);
 426                 break;
 427
 428         case LFUN_DELETE_LINE_FORWARD:
 429                 bv->lockedInsetStoreUndo(Undo::DELETE);
 430                 mathcursor->delLine();
 431                 updateLocal(bv, true);
 432                 break;
 433
 434         case LFUN_TAB:
 435                 mathcursor->idxNext();
 436                 updateLocal(bv, false);
 437                 break;
 438
 439         case LFUN_SHIFT_TAB:
 440                 mathcursor->idxPrev();
 441                 updateLocal(bv, false);
 442                 break;
 443
 444         case LFUN_TABINSERT:
 445                 bv->lockedInsetStoreUndo(Undo::EDIT);
 446                 mathcursor->splitCell();
 447                 updateLocal(bv, true);
 448                 break;
 449
 450         case LFUN_DELETE_WORD_BACKWARD:
 451         case LFUN_BACKSPACE:
 452                 bv->lockedInsetStoreUndo(Undo::DELETE);
 453                 mathcursor->backspace();
 454                 bv->updateInset(this, true);
 455                 break;
 456
 457         case LFUN_DELETE_WORD_FORWARD:
 458         case LFUN_DELETE:
 459                 bv->lockedInsetStoreUndo(Undo::DELETE);
 460                 mathcursor->erase();
 461                 bv->updateInset(this, true);
 462                 break;
 463
 464         //    case LFUN_GETXY:
 465         //      sprintf(dispatch_buffer, "%d %d",);
 466         //      dispatch_result = dispatch_buffer;
 467         //      break;
 468         case LFUN_SETXY: {
 469                 lyxerr << "LFUN_SETXY broken!\n";
 470                 int x = 0;
 471                 int y = 0;
 472                 istringstream is(arg.c_str());
 473                 is >> x >> y;
 474                 mathcursor->setPos(x, y);
 475                 updateLocal(bv, false);
 476                 break;
 477         }
 478
 479         case LFUN_PASTE:
 480                 if (was_macro)
 481                         mathcursor->macroModeClose();
 482                 bv->lockedInsetStoreUndo(Undo::EDIT);
 483                 mathcursor->selPaste();
 484                 updateLocal(bv, true);
 485                 break;
 486
 487         case LFUN_CUT:
 488                 bv->lockedInsetStoreUndo(Undo::DELETE);
 489                 mathcursor->selCut();
 490                 updateLocal(bv, true);
 491                 break;
 492
 493         case LFUN_COPY:
 494                 mathcursor->selCopy();
 495                 break;
 496
 497         case LFUN_WORDRIGHTSEL:
 498         case LFUN_WORDLEFTSEL:
 499                 break;
 500
 501                 // --- accented characters ------------------------------
 502
 503         case LFUN_UMLAUT:       handleAccent(bv, "ddot"); break;
 504         case LFUN_CIRCUMFLEX:   handleAccent(bv, "hat"); break;
 505         case LFUN_GRAVE:        handleAccent(bv, "grave"); break;
 506         case LFUN_ACUTE:        handleAccent(bv, "acute"); break;
 507         case LFUN_TILDE:        handleAccent(bv, "tilde"); break;
 508         case LFUN_MACRON:       handleAccent(bv, "bar"); break;
 509         case LFUN_DOT:          handleAccent(bv, "dot"); break;
 510         case LFUN_CARON:        handleAccent(bv, "check"); break;
 511         case LFUN_BREVE:        handleAccent(bv, "breve"); break;
 512         case LFUN_VECTOR:       handleAccent(bv, "vec"); break;
 513         case LFUN_UNDERBAR:     handleAccent(bv, "underbar"); break;
 514
 515         //  Math fonts
 516         case LFUN_GREEK_TOGGLE: handleFont(bv, LM_TC_GREEK); break;
 517         case LFUN_BOLD:         handleFont(bv, LM_TC_BF); break;
 518         case LFUN_SANS:         handleFont(bv, LM_TC_SF); break;
 519         case LFUN_EMPH:         handleFont(bv, LM_TC_CAL); break;
 520         case LFUN_ROMAN:        handleFont(bv, LM_TC_RM); break;
 521         case LFUN_CODE:         handleFont(bv, LM_TC_TT); break;
 522         case LFUN_FRAK:         handleFont(bv, LM_TC_EUFRAK); break;
 523         case LFUN_ITAL:         handleFont(bv, LM_TC_IT); break;
 524         case LFUN_NOUN:         handleFont(bv, LM_TC_BB); break;
 525         case LFUN_DEFAULT:      handleFont(bv, LM_TC_VAR); break;
 526         case LFUN_FREE:         handleFont(bv, LM_TC_TEXTRM); break;
 527
 528         case LFUN_GREEK:
 529                 handleFont(bv, LM_TC_GREEK1);
 530                 if (arg.size())
 531                         mathcursor->interpret(arg);
 532                 break;
 533
 534         case LFUN_MATH_MODE:
 535                 //handleFont(bv, LM_TC_TEXTRM);
 536
 537                 //mathcursor->niceInsert(MathAtom(new MathHullInset(LM_OT_SIMPLE)));
 538                 //updateLocal(bv, true);
 539
 540                 //bv->owner()->message(_("math text mode toggled"));
 541                 break;
 542
 543         case LFUN_MATH_LIMITS:
 544                 bv->lockedInsetStoreUndo(Undo::EDIT);
 545                 if (mathcursor->toggleLimits())
 546                         updateLocal(bv, true);
 547                 break;
 548
 549         case LFUN_MATH_SIZE:
 550 #if 0
 551                 if (!arg.empty()) {
 552                         bv->lockedInsetStoreUndo(Undo::EDIT);
 553                         mathcursor->setSize(arg);
 554                         updateLocal(bv, true);
 555                 }
 556 #endif
 557                 break;
 558
 559         case LFUN_INSERT_MATRIX:
 560                 if (!arg.empty()) {
 561                         bv->lockedInsetStoreUndo(Undo::EDIT);
 562                         mathcursor->interpret("matrix " + arg);
 563                         updateLocal(bv, true);
 564                 }
 565                 break;
 566
 567         case LFUN_MATH_SPACE:
 568         {
 569                 bv->lockedInsetStoreUndo(Undo::EDIT);
 570                 mathcursor->insert(MathAtom(new MathSpaceInset(1)));
 571                 updateLocal(bv, true);
 572                 break;
 573         }
 574
 575         case LFUN_SUPERSCRIPT:
 576         case LFUN_SUBSCRIPT:
 577         {
 578                 bv->lockedInsetStoreUndo(Undo::EDIT);
 579                 mathcursor->script((action == LFUN_SUPERSCRIPT));
 580                 updateLocal(bv, true);
 581                 break;
 582         }
 583
 584         case LFUN_MATH_DELIM:
 585         {
 586                 lyxerr << "formulabase::LFUN_MATH_DELIM, arg: '" << arg << "'\n";
 587                 string ls;
 588                 string rs;
 589                 istringstream is(arg.c_str());
 590                 is >> ls >> rs;
 591                 if (!is) {
 592                         lyxerr << "can't parse delimeters from '" << arg << "'\n";
 593                         break;
 594                 }
 595                 bv->lockedInsetStoreUndo(Undo::EDIT);
 596                 mathcursor->handleDelim(ls, rs);
 597                 updateLocal(bv, true);
 598                 break;
 599         }
 600
 601         case LFUN_PROTECTEDSPACE:
 602                 //lyxerr << " called LFUN_PROTECTEDSPACE\n";
 603                 bv->lockedInsetStoreUndo(Undo::EDIT);
 604                 mathcursor->insert(MathAtom(new MathSpaceInset(1)));
 605                 updateLocal(bv, true);
 606                 break;
 607
 608         case LFUN_UNDO:
 609                 bv->owner()->message(_("Invalid action in math mode!"));
 610                 break;
 611
 612
 613         case LFUN_MATH_HALIGN:
 614         case LFUN_MATH_VALIGN:
 615         case LFUN_MATH_ROW_INSERT:
 616         case LFUN_MATH_ROW_DELETE:
 617         case LFUN_MATH_COLUMN_INSERT:
 618         case LFUN_MATH_COLUMN_DELETE:
 619         {
 620                 MathInset::idx_type idx = 0;
 621                 MathGridInset * p = mathcursor ? mathcursor->enclosingGrid(idx) : 0;
 622                 if (p) {
 623                         bv->lockedInsetStoreUndo(Undo::EDIT);
 624                         char al = arg.size() ? arg[0] : 'c';
 625                         switch (action) {
 626                                 case LFUN_MATH_HALIGN: p->halign(al, p->col(idx)); break;
 627                                 case LFUN_MATH_VALIGN: p->valign(al); break;
 628                                 case LFUN_MATH_ROW_INSERT: p->addRow(p->row(idx)); break;
 629                                 case LFUN_MATH_ROW_DELETE: p->delRow(p->row(idx)); break;
 630                                 case LFUN_MATH_COLUMN_INSERT: p->addCol(p->col(idx)); break;
 631                                 case LFUN_MATH_COLUMN_DELETE: p->delCol(p->col(idx)); break;
 632                                 default: ;
 633                         }
 634                         updateLocal(bv, true);
 635                 }
 636                 break;
 637         }
 638
 639         case LFUN_EXEC_COMMAND:
 640                 result = UNDISPATCHED;
 641                 break;
 642
 643         case LFUN_BREAKPARAGRAPH:
 644         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
 645                 //lyxerr << "LFUN ignored\n";
 646                 break;
 647
 648         case LFUN_INSET_ERT:
 649                 // interpret this as if a backslash was typed
 650                 bv->lockedInsetStoreUndo(Undo::EDIT);
 651                 mathcursor->interpret("\\");
 652                 updateLocal(bv, true);
 653                 break;
 654
 655         case -1:
 656         case LFUN_INSERT_MATH:
 657         case LFUN_SELFINSERT:
 658                 if (!arg.empty()) {
 659                         bv->lockedInsetStoreUndo(Undo::EDIT);
 660                         result = mathcursor->interpret(arg) ? DISPATCHED : FINISHED_RIGHT;
 661                         updateLocal(bv, true);
 662                 }
 663                 break;
 664
 665         case LFUN_MATH_PANEL:
 666                 result = UNDISPATCHED;
 667                 break;
 668
 669         case LFUN_ESCAPE:
 670                 if (mathcursor->selection())
 671                         mathcursor->selClear();
 672                 else
 673                         result = UNDISPATCHED;
 674                 break;
 675
 676         default:
 677                 result = UNDISPATCHED;
 678         }
 679
 680         mathcursor->normalize();
 681
 682         lyx::Assert(mathcursor);
 683
 684         if (mathcursor->selection() || was_selection)
 685                 toggleInsetSelection(bv);
 686
 687         if (result == DISPATCHED || result == DISPATCHED_NOUPDATE ||
 688             result == UNDISPATCHED)
 689                 showInsetCursor(bv);
 690         else
 691                 bv->unlockInset(this);
 692
 693         return result;  // original version
 694 }
 695
 696
 697 Inset::Code InsetFormulaBase::lyxCode() const
 698 {
 699         return Inset::MATH_CODE;
 700 }
 701
 702
 703 int InsetFormulaBase::ylow() const
 704 {
 705         return yo_ - ascent(view_, font_);
 706 }
 707
 708
 709 int InsetFormulaBase::yhigh() const
 710 {
 711         return yo_ + descent(view_, font_);
 712 }
 713
 714
 715 int InsetFormulaBase::xlow() const
 716 {
 717         return xo_;
 718 }
 719
 720
 721 int InsetFormulaBase::xhigh() const
 722 {
 723         return xo_ + width(view_, font_);
 724 }
 725
 726
 727 /////////////////////////////////////////////////////////////////////
 728
 729
 730 bool InsetFormulaBase::searchForward(BufferView * bv, string const & str,
 731                                      bool, bool)
 732 {
 733 #ifdef WITH_WARNINGS
 734 #warning pretty ugly
 735 #endif
 736         static InsetFormulaBase * lastformula = 0;
 737         static MathIterator current = MathIterator(ibegin(par().nucleus()));
 738         static MathArray ar;
 739         static string laststr;
 740
 741         if (lastformula != this || laststr != str) {
 742                 //lyxerr << "reset lastformula to " << this << "\n";
 743                 lastformula = this;
 744                 laststr = str;
 745                 current = ibegin(par().nucleus());
 746                 ar.clear();
 747                 mathed_parse_cell(ar, str);
 748         } else {
 749                 ++current;
 750         }
 751         //lyxerr << "searching '" << str << "' in " << this << ar << endl;
 752
 753         for (MathIterator it = current; it != iend(par().nucleus()); ++it) {
 754                 if (it.cell().matchpart(ar, it.position().pos_)) {
 755                         mathcursor->setSelection(it.cursor(), ar.size());
 756                         current = it;
 757                         it.jump(ar.size());
 758                         // I guess some of the following can go
 759                         bv->toggleSelection(true);
 760                         hideInsetCursor(bv);
 761                         updateLocal(bv, true);
 762                         showInsetCursor(bv);
 763                         metrics(bv);
 764                         return true;
 765                 }
 766         }
 767
 768         //lyxerr << "not found!\n";
 769         lastformula = 0;
 770         // we have to unlock ourself in this function by default!
 771         // don't ask me why...
 772         bv->unlockInset(this);
 773         return false;
 774 }
 775
 776
 777 bool InsetFormulaBase::searchBackward(BufferView * bv, string const & what,
 778                                       bool a, bool b)
 779 {
 780         lyxerr << "searching backward not implemented in mathed" << endl;
 781         return searchForward(bv, what, a, b);
 782 }
 783
 784
 785 /////////////////////////////////////////////////////////////////////
 786
 787
 788 void mathDispatchCreation(BufferView * bv, string const & arg, bool display)
 789 {
 790         if (bv->available()) {
 791                 // use selection if available..
 792                 //string sel;
 793                 //if (action == LFUN_MATH_IMPORT_SELECTION)
 794                 //      sel = "";
 795                 //else
 796
 797                 string sel = bv->getLyXText()->selectionAsString(bv->buffer(), false);
 798
 799                 InsetFormulaBase * f;
 800                 if (sel.empty()) {
 801                         f = new InsetFormula;
 802                         if (openNewInset(bv, f)) {
 803                                 // don't do that also for LFUN_MATH_MODE unless you want end up with
 804                                 // always changing to mathrm when opening an inlined inset
 805                                 // -- I really hate "LyXfunc overloading"...
 806                                 if (display)
 807                                         f->localDispatch(bv, LFUN_MATH_DISPLAY, string());
 808                                 f->localDispatch(bv, LFUN_INSERT_MATH, arg);
 809                         }
 810                 } else {
 811                         // create a macro if we see "\\newcommand" somewhere, and an ordinary
 812                         // formula otherwise
 813                         if (sel.find("\\newcommand") == string::npos)
 814                                 f = new InsetFormula(sel);
 815                         else
 816                                 f = new InsetFormulaMacro(sel);
 817                         bv->getLyXText()->cutSelection(bv);
 818                         openNewInset(bv, f);
 819                 }
 820         }
 821         bv->owner()->getLyXFunc()->setMessage(N_("Math editor mode"));
 822 }
 823
 824
 825 void mathDispatchMathDisplay(BufferView * bv, string const & arg)
 826 {
 827         mathDispatchCreation(bv, arg, true);
 828 }
 829
 830
 831 void mathDispatchMathMode(BufferView * bv, string const & arg)
 832 {
 833         mathDispatchCreation(bv, arg, false);
 834 }
 835
 836
 837 void mathDispatchMathImportSelection(BufferView * bv, string const & arg)
 838 {
 839         mathDispatchCreation(bv, arg, true);
 840 }
 841
 842
 843 void mathDispatchMathMacro(BufferView * bv, string const & arg)
 844 {
 845         if (bv->available()) {
 846                 if (arg.empty())
 847                         bv->owner()->getLyXFunc()->setErrorMessage(N_("Missing argument"));
 848                 else {
 849                         string s(arg);
 850                         string const s1 = token(s, ' ', 1);
 851                         int const na = s1.empty() ? 0 : lyx::atoi(s1);
 852                         openNewInset(bv, new InsetFormulaMacro(token(s, ' ', 0), na));
 853                 }
 854         }
 855 }
 856
 857
 858 void mathDispatchMathDelim(BufferView * bv, string const & arg)
 859 {
 860         if (bv->available()) {
 861                 if (openNewInset(bv, new InsetFormula))
 862                         bv->theLockingInset()->localDispatch(bv, LFUN_MATH_DELIM, arg);
 863         }
 864 }
 865
 866
 867 void mathDispatchInsertMatrix(BufferView * bv, string const & arg)
 868 {
 869         if (bv->available()) {
 870                 if (openNewInset(bv, new InsetFormula))
 871                         bv->theLockingInset()->localDispatch(bv, LFUN_INSERT_MATRIX, arg);
 872         }
 873 }
 874
 875
 876 void mathDispatchInsertMath(BufferView * bv, string const & arg)
 877 {
 878         if (bv->available()) {
 879                 if (arg.size() && arg[0] == '\\') {
 880                         InsetFormula * f = new InsetFormula(arg);
 881                         if (!bv->insertInset(f))
 882                                 delete f;
 883                 } else
 884                         mathDispatchMathMode(bv, arg);
 885         }
 886 }
 887
 888
 889 void mathDispatchGreek(BufferView * bv, string const & arg)
 890 {
 891         if (bv->available()) {
 892                 InsetFormula * f = new InsetFormula;
 893                 if (openNewInset(bv, f)) {
 894                         bv->theLockingInset()->localDispatch(bv, LFUN_GREEK, arg);
 895                         bv->unlockInset(f);
 896                 }
 897         }
 898 }
 899
 900
 901 void mathDispatch(BufferView *, kb_action, string const &)
 902 {}