src/mathed/formulabase.C

   1 /*
   2 *  File:        formulabase.C
   3 *  Purpose:     Implementation of common parts of the LyX  math insets
   4 *  Author:      Alejandro Aguilar Sierra <asierra@servidor.unam.mx>
   5 *  Created:     January 1996
   6 *
   7 *  Copyright: 1996-1998 Alejandro Aguilar Sierra
   8 *
   9 *  Version: 0.4, Lyx project.
  10 *
  11 *   You are free to use and modify this code under the terms of
  12 *   the GNU General Public Licence version 2 or later.
  13 */
  14
  15 #include <config.h>
  16 #include <fstream>
  17
  18 #include "Lsstream.h"
  19 #include "support/LAssert.h"
  20
  21 #ifdef __GNUG__
  22 #pragma implementation
  23 #endif
  24
  25 #include "formula.h"
  26 #include "formulamacro.h"
  27 #include "commandtags.h"
  28 #include "BufferView.h"
  29 #include "lyxtext.h"
  30 #include "lyxfunc.h"
  31 #include "gettext.h"
  32 #include "LaTeXFeatures.h"
  33 #include "debug.h"
  34 #include "math_support.h"
  35 #include "support/lstrings.h"
  36 #include "LyXView.h"
  37 #include "Painter.h"
  38 #include "font.h"
  39 #include "Lsstream.h"
  40 #include "math_arrayinset.h"
  41 #include "math_charinset.h"
  42 #include "math_cursor.h"
  43 #include "math_factory.h"
  44 #include "math_hullinset.h"
  45 #include "math_iterator.h"
  46 #include "math_macrotable.h"
  47 #include "math_parser.h"
  48 #include "math_pos.h"
  49 #include "math_spaceinset.h"
  50 #include "undo_funcs.h"
  51 #include "textpainter.h"
  52 #include "frontends/Dialogs.h"
  53 #include "intl.h"
  54
  55 using std::endl;
  56 using std::ostream;
  57 using std::vector;
  58
  59 MathCursor * mathcursor = 0;
  60
  61
  62 namespace {
  63
  64
  65 // local global
  66 int first_x;
  67 int first_y;
  68
  69
  70 void handleFont(BufferView * bv, string const & arg, MathTextCodes t)
  71 {
  72         if (mathcursor->selection())
  73                 bv->lockedInsetStoreUndo(Undo::EDIT);
  74         mathcursor->handleFont(t);
  75         for (string::const_iterator it = arg.begin(); it != arg.end(); ++it)
  76                 mathcursor->insert(*it);
  77 }
  78
  79
  80 bool openNewInset(BufferView * bv, UpdatableInset * new_inset)
  81 {
  82         if (!bv->insertInset(new_inset)) {
  83                 delete new_inset;
  84                 return false;
  85         }
  86         new_inset->edit(bv, 0, 0, 0);
  87         return true;
  88 }
  89
  90
  91 } // namespace anon
  92
  93
  94
  95 InsetFormulaBase::InsetFormulaBase()
  96         : view_(0), font_(), xo_(0), yo_(0)
  97 {
  98         // This is needed as long the math parser is not re-entrant
  99         MathMacroTable::builtinMacros();
 100         //lyxerr << "sizeof MathInset: " << sizeof(MathInset) << "\n";
 101         //lyxerr << "sizeof(MathMetricsInfo): " << sizeof(MathMetricsInfo) << "\n";
 102         //lyxerr << "sizeof(MathCharInset): " << sizeof(MathCharInset) << "\n";
 103 }
 104
 105
 106 // simply scrap this function if you want
 107 void InsetFormulaBase::mutateToText()
 108 {
 109 #if 0
 110         // translate to latex
 111         ostringstream os;
 112         latex(NULL, os, false, false);
 113         string str = os.str();
 114
 115         // insert this text
 116         LyXText * lt = view_->getLyXText();
 117         string::const_iterator cit = str.begin();
 118         string::const_iterator end = str.end();
 119         for (; cit != end; ++cit)
 120                 view_->owner()->getIntl()->getTrans().TranslateAndInsert(*cit, lt);
 121
 122         // remove ourselves
 123         //view_->owner()->getLyXFunc()->dispatch(LFUN_ESCAPE);
 124 #endif
 125 }
 126
 127
 128 // Check if uses AMS macros
 129 void InsetFormulaBase::validate(LaTeXFeatures &) const
 130 {}
 131
 132
 133 void InsetFormulaBase::metrics(BufferView * bv, LyXFont const & f) const
 134 {
 135         font_ = f;
 136         metrics(bv);
 137 }
 138
 139
 140 void InsetFormulaBase::metrics(BufferView * bv) const
 141 {
 142         if (bv)
 143                 view_ = bv;
 144         MathMetricsInfo mi(view_, font_, display() ? LM_ST_DISPLAY : LM_ST_TEXT);
 145         par()->metrics(mi);
 146 }
 147
 148
 149 string const InsetFormulaBase::editMessage() const
 150 {
 151         return _("Math editor mode");
 152 }
 153
 154
 155 void InsetFormulaBase::edit(BufferView * bv, int x, int /*y*/, unsigned int)
 156 {
 157         //lyxerr << "edit: " << x  << " " << y << " button: " << button << "\n";
 158         if (!bv->lockInset(this))
 159                 lyxerr[Debug::MATHED] << "Cannot lock inset!!!" << endl;
 160
 161         if (!mathcursor)
 162                 mathcursor = new MathCursor(this, x == 0);
 163         metrics(bv);
 164         // if that is removed, we won't get the magenta box when entering an
 165         // inset for the first time
 166         bv->updateInset(this, false);
 167 }
 168
 169
 170 void InsetFormulaBase::edit(BufferView * bv, bool front)
 171 {
 172         // looks hackish but seems to work
 173         edit(bv, front ? 0 : 1, 0, 0);
 174 }
 175
 176
 177 void InsetFormulaBase::insetUnlock(BufferView * bv)
 178 {
 179         if (mathcursor) {
 180                 if (mathcursor->inMacroMode()) {
 181                         mathcursor->macroModeClose();
 182                         updateLocal(bv, true);
 183                 }
 184                 delete mathcursor;
 185                 mathcursor = 0;
 186         }
 187         bv->updateInset(this, false);
 188 }
 189
 190
 191 void InsetFormulaBase::getCursorPos(BufferView *, int & x, int & y) const
 192 {
 193         mathcursor->getPos(x, y);
 194         x += xo_;
 195         y += yo_;
 196         //lyxerr << "getCursorPos: " << x << " " << y << "\n";
 197 }
 198
 199
 200 void InsetFormulaBase::toggleInsetCursor(BufferView * bv)
 201 {
 202         if (!mathcursor)
 203                 return;
 204
 205         if (isCursorVisible())
 206                 bv->hideLockedInsetCursor();
 207         else {
 208                 metrics(bv);
 209                 int x;
 210                 int y;
 211                 mathcursor->getPos(x, y);
 212                 y -= yo_;
 213                 int asc = 0;
 214                 int des = 0;
 215                 math_font_max_dim(font_, asc, des);
 216                 bv->showLockedInsetCursor(x, y, asc, des);
 217                 //lyxerr << "toggleInsetCursor: " << x << " " << y << "\n";
 218         }
 219
 220         toggleCursorVisible();
 221 }
 222
 223
 224 void InsetFormulaBase::showInsetCursor(BufferView * bv, bool)
 225 {
 226         if (isCursorVisible())
 227                 return;
 228         if (mathcursor) {
 229                 metrics(bv);
 230                 int x;
 231                 int y;
 232                 mathcursor->getPos(x, y);
 233                 y -= yo_;
 234                 int asc = 0;
 235                 int des = 0;
 236                 math_font_max_dim(font_, asc, des);
 237                 bv->fitLockedInsetCursor(x, y, asc, des);
 238                 //lyxerr << "showInsetCursor: x: " << x << " y: " << y << " yo: " << yo_ << "\n";
 239         }
 240         toggleInsetCursor(bv);
 241 }
 242
 243
 244 void InsetFormulaBase::hideInsetCursor(BufferView * bv)
 245 {
 246         if (isCursorVisible())
 247                 toggleInsetCursor(bv);
 248 }
 249
 250
 251 void InsetFormulaBase::toggleInsetSelection(BufferView * bv)
 252 {
 253         if (mathcursor)
 254                 bv->updateInset(this, false);
 255 }
 256
 257
 258 vector<string> const InsetFormulaBase::getLabelList() const
 259 {
 260   return vector<string>();
 261 }
 262
 263
 264 void InsetFormulaBase::updateLocal(BufferView * bv, bool dirty)
 265 {
 266         metrics(bv);
 267         bv->updateInset(this, dirty);
 268 }
 269
 270
 271 bool InsetFormulaBase::insetButtonRelease(BufferView * bv,
 272                                           int /*x*/, int /*y*/, int /*button*/)
 273 {
 274         //lyxerr << "insetButtonRelease: " << x << " " << y << "\n";
 275         if (!mathcursor)
 276                 return false;
 277         hideInsetCursor(bv);
 278         showInsetCursor(bv);
 279         bv->updateInset(this, false);
 280         return false;
 281 }
 282
 283
 284 void InsetFormulaBase::insetButtonPress(BufferView * bv,
 285                                         int x, int y, int button)
 286 {
 287         //lyxerr << "insetButtonPress: "
 288         //      << x << " " << y << " but: " << button << "\n";
 289
 290         switch (button) {
 291                 default:
 292                 case 1:
 293                         // left click
 294                         if (!mathcursor) {
 295                                 mathcursor = new MathCursor(this, x == 0);
 296                                 metrics(bv);
 297                         }
 298                         first_x = x;
 299                         first_y = y;
 300                         mathcursor->selClear();
 301                         mathcursor->setPos(x + xo_, y + yo_);
 302                         break;
 303 /*
 304                 case 2:
 305                         lyxerr << "insetButtonPress: 2\n";
 306                         // insert stuff
 307                         if (mathcursor) {
 308                                 bv->lockedInsetStoreUndo(Undo::EDIT);
 309                                 MathArray ar;
 310                                 mathcursor->selGet(ar);
 311                                 mathcursor->setPos(x + xo_, y + yo_);
 312                                 string sel =
 313                                         bv->getLyXText()->selectionAsString(bv->buffer(), false);
 314                                 mathed_parse_cell(ar, sel);
 315                                 mathcursor->insert(ar);
 316                         }
 317                         break;
 318 */
 319                 case 3:
 320                         // launch math panel for right mouse button
 321                         bv->owner()->getDialogs()->showMathPanel();
 322                         break;
 323         }
 324         bv->updateInset(this, false);
 325 }
 326
 327
 328 void InsetFormulaBase::insetMotionNotify(BufferView * bv,
 329                                          int x, int y, int /*button*/)
 330 {
 331         if (!mathcursor)
 332                 return;
 333
 334         if (abs(x - first_x) < 2 && abs(y - first_y) < 2) {
 335                 //lyxerr << "insetMotionNotify: ignored\n";
 336                 return;
 337         }
 338         first_x = x;
 339         first_y = y;
 340
 341         if (!mathcursor->selection())
 342                 mathcursor->selStart();
 343
 344         //lyxerr << "insetMotionNotify: " << x + xo_ << ' ' << y + yo_
 345         //      << ' ' << button << "\n";
 346         hideInsetCursor(bv);
 347         mathcursor->setPos(x + xo_, y + yo_);
 348         showInsetCursor(bv);
 349         bv->updateInset(this, false);
 350 }
 351
 352
 353 void InsetFormulaBase::insetKeyPress(XKeyEvent *)
 354 {
 355         lyxerr[Debug::MATHED] << "Used InsetFormulaBase::InsetKeyPress." << endl;
 356 }
 357
 358
 359 UpdatableInset::RESULT
 360 InsetFormulaBase::localDispatch(BufferView * bv, kb_action action,
 361                             string const & arg)
 362 {
 363         //lyxerr << "InsetFormulaBase::localDispatch: act: " << action
 364         //      << " arg: '" << arg << "' cursor: " << mathcursor << "\n";
 365
 366         if (!mathcursor)
 367                 return UNDISPATCHED;
 368
 369         if (mathcursor->asHyperActiveInset()) {
 370                 lyxerr << " uurr.... getting dificult now\n";
 371                 return mathcursor->asHyperActiveInset()->localDispatch(bv, action, arg);
 372         }
 373
 374         RESULT result      = DISPATCHED;
 375         bool sel           = false;
 376         bool was_macro     = mathcursor->inMacroMode();
 377         bool was_selection = mathcursor->selection();
 378
 379         hideInsetCursor(bv);
 380
 381         mathcursor->normalize();
 382         mathcursor->touch();
 383
 384         switch (action) {
 385
 386                 // --- Cursor Movements ---------------------------------------------
 387
 388         case LFUN_RIGHTSEL:
 389                 sel = true; // fall through...
 390
 391         case LFUN_RIGHT:
 392                 result = mathcursor->right(sel) ? DISPATCHED : FINISHED_RIGHT;
 393                 //lyxerr << "calling scroll 20\n";
 394                 //scroll(bv, 20);
 395                 updateLocal(bv, false);
 396                 // write something to the minibuffer
 397                 //bv->owner()->message(mathcursor->info());
 398                 break;
 399
 400
 401         case LFUN_LEFTSEL:
 402                 sel = true; // fall through
 403
 404         case LFUN_LEFT:
 405                 result = mathcursor->left(sel) ? DISPATCHED : FINISHED;
 406                 updateLocal(bv, false);
 407                 break;
 408
 409
 410         case LFUN_UPSEL:
 411                 sel = true;
 412
 413         case LFUN_UP:
 414                 result = mathcursor->up(sel) ? DISPATCHED : FINISHED_UP;
 415                 updateLocal(bv, false);
 416                 break;
 417
 418
 419         case LFUN_DOWNSEL:
 420                 sel = true;
 421
 422         case LFUN_DOWN:
 423                 result = mathcursor->down(sel) ? DISPATCHED : FINISHED_DOWN;
 424                 updateLocal(bv, false);
 425                 break;
 426
 427         case LFUN_HOMESEL:
 428                 sel = true;
 429
 430         case LFUN_HOME:
 431                 mathcursor->home(sel);
 432                 updateLocal(bv, false);
 433                 break;
 434
 435         case LFUN_ENDSEL:
 436                 sel = true;
 437
 438         case LFUN_END:
 439                 mathcursor->end(sel);
 440                 updateLocal(bv, false);
 441                 break;
 442
 443         case LFUN_DELETE_LINE_FORWARD:
 444                 bv->lockedInsetStoreUndo(Undo::DELETE);
 445                 mathcursor->delLine();
 446                 updateLocal(bv, true);
 447                 break;
 448
 449         case LFUN_TAB:
 450                 mathcursor->idxNext();
 451                 updateLocal(bv, false);
 452                 break;
 453
 454         case LFUN_SHIFT_TAB:
 455                 mathcursor->idxPrev();
 456                 updateLocal(bv, false);
 457                 break;
 458
 459         case LFUN_TABINSERT:
 460                 bv->lockedInsetStoreUndo(Undo::EDIT);
 461                 mathcursor->splitCell();
 462                 updateLocal(bv, true);
 463                 break;
 464
 465         case LFUN_DELETE_WORD_BACKWARD:
 466         case LFUN_BACKSPACE:
 467                 bv->lockedInsetStoreUndo(Undo::DELETE);
 468                 mathcursor->backspace();
 469                 bv->updateInset(this, true);
 470                 break;
 471
 472         case LFUN_DELETE_WORD_FORWARD:
 473         case LFUN_DELETE:
 474                 bv->lockedInsetStoreUndo(Undo::DELETE);
 475                 mathcursor->erase();
 476                 bv->updateInset(this, true);
 477                 break;
 478
 479         //    case LFUN_GETXY:
 480         //      sprintf(dispatch_buffer, "%d %d",);
 481         //      dispatch_result = dispatch_buffer;
 482         //      break;
 483         case LFUN_SETXY: {
 484                 lyxerr << "LFUN_SETXY broken!\n";
 485                 int x = 0;
 486                 int y = 0;
 487                 istringstream is(arg.c_str());
 488                 is >> x >> y;
 489                 mathcursor->setPos(x, y);
 490                 updateLocal(bv, false);
 491                 break;
 492         }
 493
 494         case LFUN_PASTE:
 495                 if (was_macro)
 496                         mathcursor->macroModeClose();
 497                 bv->lockedInsetStoreUndo(Undo::EDIT);
 498                 mathcursor->selPaste();
 499                 updateLocal(bv, true);
 500                 break;
 501
 502         case LFUN_CUT:
 503                 bv->lockedInsetStoreUndo(Undo::DELETE);
 504                 mathcursor->selCut();
 505                 updateLocal(bv, true);
 506                 break;
 507
 508         case LFUN_COPY:
 509                 mathcursor->selCopy();
 510                 break;
 511
 512         case LFUN_WORDRIGHTSEL:
 513         case LFUN_WORDLEFTSEL:
 514                 break;
 515
 516         // Special casing for superscript in case of LyX handling
 517         // dead-keys:
 518         case LFUN_CIRCUMFLEX:
 519                 if (arg.empty()) {
 520                         // do superscript if LyX handles
 521                         // deadkeys
 522                         bv->lockedInsetStoreUndo(Undo::EDIT);
 523                         mathcursor->script(true);
 524                         updateLocal(bv, true);
 525                 }
 526                 break;
 527         case LFUN_UMLAUT:
 528         case LFUN_ACUTE:
 529         case LFUN_GRAVE:
 530         case LFUN_BREVE:
 531         case LFUN_DOT:
 532         case LFUN_MACRON:
 533         case LFUN_CARON:
 534         case LFUN_TILDE:
 535         case LFUN_CEDILLA:
 536         case LFUN_CIRCLE:
 537         case LFUN_UNDERDOT:
 538         case LFUN_TIE:
 539         case LFUN_OGONEK:
 540         case LFUN_HUNG_UMLAUT:
 541                 break;
 542
 543         //  Math fonts
 544         case LFUN_GREEK_TOGGLE: handleFont(bv, arg, LM_TC_GREEK); break;
 545         case LFUN_BOLD:         handleFont(bv, arg, LM_TC_BF); break;
 546         case LFUN_SANS:         handleFont(bv, arg, LM_TC_SF); break;
 547         case LFUN_EMPH:         handleFont(bv, arg, LM_TC_CAL); break;
 548         case LFUN_ROMAN:        handleFont(bv, arg, LM_TC_RM); break;
 549         case LFUN_CODE:         handleFont(bv, arg, LM_TC_TT); break;
 550         case LFUN_FRAK:         handleFont(bv, arg, LM_TC_EUFRAK); break;
 551         case LFUN_ITAL:         handleFont(bv, arg, LM_TC_IT); break;
 552         case LFUN_NOUN:         handleFont(bv, arg, LM_TC_BB); break;
 553         case LFUN_DEFAULT:      handleFont(bv, arg, LM_TC_VAR); break;
 554         case LFUN_FREE:         handleFont(bv, arg, LM_TC_TEXTRM); break;
 555
 556         case LFUN_GREEK:
 557                 handleFont(bv, arg, LM_TC_GREEK1);
 558                 if (arg.size())
 559                         mathcursor->interpret(arg);
 560                 break;
 561
 562         case LFUN_MATH_MODE:
 563 #if 1
 564                 handleFont(bv, arg, LM_TC_TEXTRM);
 565 #endif
 566
 567 #if 0
 568                 mathcursor->niceInsert(MathAtom(new MathHullInset(LM_OT_SIMPLE)));
 569                 updateLocal(bv, true);
 570 #endif
 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                         mathcursor->popToEnclosingGrid();
 656                         bv->lockedInsetStoreUndo(Undo::EDIT);
 657                         char align = arg.size() ? arg[0] : 'c';
 658                         switch (action) {
 659                                 case LFUN_MATH_HALIGN: p->halign(align, p->col(idx)); break;
 660                                 case LFUN_MATH_VALIGN: p->valign(align); break;
 661                                 case LFUN_MATH_ROW_INSERT: p->addRow(p->row(idx)); break;
 662                                 case LFUN_MATH_ROW_DELETE: p->delRow(p->row(idx)); break;
 663                                 case LFUN_MATH_COLUMN_INSERT: p->addCol(p->col(idx)); break;
 664                                 case LFUN_MATH_COLUMN_DELETE: p->delCol(p->col(idx)); break;
 665                                 default: ;
 666                         }
 667                         updateLocal(bv, true);
 668                 }
 669                 break;
 670         }
 671
 672         case LFUN_EXEC_COMMAND:
 673                 result = UNDISPATCHED;
 674                 break;
 675
 676         case LFUN_BREAKPARAGRAPH:
 677         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
 678                 //lyxerr << "LFUN ignored\n";
 679                 break;
 680
 681         case LFUN_INSET_ERT:
 682                 // interpret this as if a backslash was typed
 683                 bv->lockedInsetStoreUndo(Undo::EDIT);
 684                 mathcursor->interpret('\\');
 685                 updateLocal(bv, true);
 686                 break;
 687
 688         case -1:
 689         case LFUN_INSERT_MATH:
 690         case LFUN_SELFINSERT:
 691                 if (!arg.empty()) {
 692                         bv->lockedInsetStoreUndo(Undo::EDIT);
 693                         if (arg.size() == 1)
 694                                 result = mathcursor->interpret(arg[0]) ? DISPATCHED : FINISHED_RIGHT;
 695                         else
 696                                 result = mathcursor->interpret(arg) ? DISPATCHED : FINISHED_RIGHT;
 697                         updateLocal(bv, true);
 698                 }
 699                 break;
 700
 701         case LFUN_MATH_PANEL:
 702                 result = UNDISPATCHED;
 703                 break;
 704
 705         case LFUN_ESCAPE:
 706                 if (mathcursor->selection())
 707                         mathcursor->selClear();
 708                 else
 709                         result = UNDISPATCHED;
 710                 break;
 711
 712         default:
 713                 result = UNDISPATCHED;
 714         }
 715
 716         mathcursor->normalize();
 717         mathcursor->touch();
 718
 719         lyx::Assert(mathcursor);
 720
 721         if (mathcursor->selection() || was_selection)
 722                 toggleInsetSelection(bv);
 723
 724         if (result == DISPATCHED || result == DISPATCHED_NOUPDATE ||
 725             result == UNDISPATCHED)
 726                 showInsetCursor(bv);
 727         else
 728                 bv->unlockInset(this);
 729
 730         revealCodes(bv);
 731
 732         return result;  // original version
 733 }
 734
 735
 736 void InsetFormulaBase::revealCodes(BufferView * /*bv*/) const
 737 {
 738         if (!mathcursor)
 739                 return;
 740 #if 0
 741         // write something to the minibuffer
 742         // translate to latex
 743         mathcursor->markInsert();
 744         ostringstream os;
 745         write(NULL, os);
 746         string str = os.str();
 747         mathcursor->markErase();
 748         string::size_type pos = 0;
 749         string res;
 750         for (string::iterator it = str.begin(); it != str.end(); ++it) {
 751                 if (*it == '\n')
 752                         res += ' ';
 753                 else if (*it == '\0') {
 754                         res += "  -X-  ";
 755                         pos = it - str.begin();
 756                 }
 757                 else
 758                         res += *it;
 759         }
 760         if (pos > 30)
 761                 res = res.substr(pos - 30);
 762         if (res.size() > 60)
 763                 res = res.substr(0, 60);
 764         bv->owner()->message(res);
 765 #endif
 766 }
 767
 768
 769 Inset::Code InsetFormulaBase::lyxCode() const
 770 {
 771         return Inset::MATH_CODE;
 772 }
 773
 774
 775 int InsetFormulaBase::ylow() const
 776 {
 777         return yo_ - ascent(view_, font_);
 778 }
 779
 780
 781 int InsetFormulaBase::yhigh() const
 782 {
 783         return yo_ + descent(view_, font_);
 784 }
 785
 786
 787 int InsetFormulaBase::xlow() const
 788 {
 789         return xo_;
 790 }
 791
 792
 793 int InsetFormulaBase::xhigh() const
 794 {
 795         return xo_ + width(view_, font_);
 796 }
 797
 798
 799 /////////////////////////////////////////////////////////////////////
 800
 801
 802 bool InsetFormulaBase::searchForward(BufferView * bv, string const & str,
 803                                      bool, bool)
 804 {
 805 #ifdef WITH_WARNINGS
 806 #warning pretty ugly
 807 #endif
 808         static InsetFormulaBase * lastformula = 0;
 809         static MathIterator current = MathIterator(ibegin(par().nucleus()));
 810         static MathArray ar;
 811         static string laststr;
 812
 813         if (lastformula != this || laststr != str) {
 814                 //lyxerr << "reset lastformula to " << this << "\n";
 815                 lastformula = this;
 816                 laststr = str;
 817                 current = ibegin(par().nucleus());
 818                 ar.clear();
 819                 mathed_parse_cell(ar, str);
 820         } else {
 821                 ++current;
 822         }
 823         //lyxerr << "searching '" << str << "' in " << this << ar << endl;
 824
 825         for (MathIterator it = current; it != iend(par().nucleus()); ++it) {
 826                 if (it.cell().matchpart(ar, it.position().pos_)) {
 827                         mathcursor->setSelection(it.cursor(), ar.size());
 828                         current = it;
 829                         it.jump(ar.size());
 830                         // I guess some of the following can go
 831                         bv->toggleSelection(true);
 832                         hideInsetCursor(bv);
 833                         updateLocal(bv, true);
 834                         showInsetCursor(bv);
 835                         metrics(bv);
 836                         return true;
 837                 }
 838         }
 839
 840         //lyxerr << "not found!\n";
 841         lastformula = 0;
 842         // we have to unlock ourself in this function by default!
 843         // don't ask me why...
 844         bv->unlockInset(this);
 845         return false;
 846 }
 847
 848
 849 bool InsetFormulaBase::searchBackward(BufferView * bv, string const & what,
 850                                       bool a, bool b)
 851 {
 852         lyxerr << "searching backward not implemented in mathed" << endl;
 853         return searchForward(bv, what, a, b);
 854 }
 855
 856
 857 /////////////////////////////////////////////////////////////////////
 858
 859
 860 void mathDispatchCreation(BufferView * bv, string const & arg, bool display)
 861 {
 862         if (bv->available()) {
 863                 // use selection if available..
 864                 //string sel;
 865                 //if (action == LFUN_MATH_IMPORT_SELECTION)
 866                 //      sel = "";
 867                 //else
 868
 869                 string sel = bv->getLyXText()->selectionAsString(bv->buffer(), false);
 870
 871                 InsetFormulaBase * f;
 872                 if (sel.empty()) {
 873                         f = new InsetFormula;
 874                         if (openNewInset(bv, f)) {
 875                                 // don't do that also for LFUN_MATH_MODE unless you want end up with
 876                                 // always changing to mathrm when opening an inlined inset
 877                                 // -- I really hate "LyXfunc overloading"...
 878                                 if (display)
 879                                         f->localDispatch(bv, LFUN_MATH_DISPLAY, string());
 880                                 f->localDispatch(bv, LFUN_INSERT_MATH, arg);
 881                         }
 882                 } else {
 883                         // create a macro if we see "\\newcommand" somewhere, and an ordinary
 884                         // formula otherwise
 885                         if (sel.find("\\newcommand") == string::npos &&
 886                                   sel.find("\\def") == string::npos)
 887                                 f = new InsetFormula(sel);
 888                         else {
 889                                 string name;
 890                                 if (!mathed_parse_macro(name, sel))
 891                                         return;
 892                                 f = new InsetFormulaMacro(sel);
 893                         }
 894                         bv->getLyXText()->cutSelection(bv);
 895                         openNewInset(bv, f);
 896                 }
 897         }
 898         bv->owner()->getLyXFunc()->setMessage(N_("Math editor mode"));
 899 }
 900
 901
 902 void mathDispatchMathDisplay(BufferView * bv, string const & arg)
 903 {
 904         mathDispatchCreation(bv, arg, true);
 905 }
 906
 907
 908 void mathDispatchMathMode(BufferView * bv, string const & arg)
 909 {
 910         mathDispatchCreation(bv, arg, false);
 911 }
 912
 913
 914 void mathDispatchMathImportSelection(BufferView * bv, string const & arg)
 915 {
 916         mathDispatchCreation(bv, arg, true);
 917 }
 918
 919
 920 void mathDispatchMathMacro(BufferView * bv, string const & arg)
 921 {
 922         if (bv->available()) {
 923                 if (arg.empty())
 924                         bv->owner()->getLyXFunc()->setErrorMessage(N_("Missing argument"));
 925                 else {
 926                         string s = arg;
 927                         string const s1 = token(s, ' ', 1);
 928                         int const na = s1.empty() ? 0 : lyx::atoi(s1);
 929                         openNewInset(bv, new InsetFormulaMacro(token(s, ' ', 0), na));
 930                 }
 931         }
 932 }
 933
 934
 935 void mathDispatchMathDelim(BufferView * bv, string const & arg)
 936 {
 937         if (bv->available()) {
 938                 if (openNewInset(bv, new InsetFormula))
 939                         bv->theLockingInset()->localDispatch(bv, LFUN_MATH_DELIM, arg);
 940         }
 941 }
 942
 943
 944 void mathDispatchInsertMatrix(BufferView * bv, string const & arg)
 945 {
 946         if (bv->available()) {
 947                 if (openNewInset(bv, new InsetFormula))
 948                         bv->theLockingInset()->localDispatch(bv, LFUN_INSERT_MATRIX, arg);
 949         }
 950 }
 951
 952
 953 void mathDispatchInsertMath(BufferView * bv, string const & arg)
 954 {
 955         if (bv->available()) {
 956                 if (arg.size() && arg[0] == '\\') {
 957                         InsetFormula * f = new InsetFormula(arg);
 958                         if (!bv->insertInset(f))
 959                                 delete f;
 960                 } else
 961                         mathDispatchMathMode(bv, arg);
 962         }
 963 }
 964
 965
 966 void mathDispatchGreek(BufferView * bv, string const & arg)
 967 {
 968         if (bv->available()) {
 969                 InsetFormula * f = new InsetFormula;
 970                 if (openNewInset(bv, f)) {
 971                         bv->theLockingInset()->localDispatch(bv, LFUN_GREEK, arg);
 972                         bv->unlockInset(f);
 973                 }
 974         }
 975 }
 976
 977
 978 void mathDispatch(BufferView *, kb_action, string const &)
 979 {}