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, string const & arg, MathTextCodes t)
  69 {
  70         if (mathcursor->selection())
  71                 bv->lockedInsetStoreUndo(Undo::EDIT);
  72         mathcursor->handleFont(t);
  73         for (string::const_iterator it = arg.begin(); it != arg.end(); ++it)
  74                 mathcursor->insert(*it);
  75 }
  76
  77
  78 bool openNewInset(BufferView * bv, UpdatableInset * new_inset)
  79 {
  80         if (!bv->insertInset(new_inset)) {
  81                 delete new_inset;
  82                 return false;
  83         }
  84         new_inset->edit(bv, 0, 0, 0);
  85         return true;
  86 }
  87
  88
  89 } // namespace anon
  90
  91
  92
  93 InsetFormulaBase::InsetFormulaBase()
  94         : view_(0), font_(), xo_(0), yo_(0)
  95 {
  96         // This is needed as long the math parser is not re-entrant
  97         MathMacroTable::builtinMacros();
  98         //lyxerr << "sizeof MathInset: " << sizeof(MathInset) << "\n";
  99 }
 100
 101
 102 // Check if uses AMS macros
 103 void InsetFormulaBase::validate(LaTeXFeatures &) const
 104 {}
 105
 106
 107 void InsetFormulaBase::metrics(BufferView * bv, LyXFont const & f) const
 108 {
 109         font_ = f;
 110         metrics(bv);
 111 }
 112
 113
 114 void InsetFormulaBase::metrics(BufferView * bv) const
 115 {
 116         if (bv)
 117                 view_ = bv;
 118         MathMetricsInfo mi(view_, font_, display() ? LM_ST_DISPLAY : LM_ST_TEXT);
 119         par()->metrics(mi);
 120 }
 121
 122
 123 string const InsetFormulaBase::editMessage() const
 124 {
 125         return _("Math editor mode");
 126 }
 127
 128
 129 void InsetFormulaBase::edit(BufferView * bv, int x, int /*y*/, unsigned int)
 130 {
 131         if (!bv->lockInset(this))
 132                 lyxerr[Debug::MATHED] << "Cannot lock inset!!!" << endl;
 133
 134         //lyxerr << "edit: " << x  << " " << y << " button: " << button << "\n";
 135         if (!mathcursor) {
 136                 mathcursor = new MathCursor(this, x == 0);
 137                 metrics(bv);
 138                 // handle ignored click
 139                 if (hack_x || hack_y) {
 140                         insetButtonPress(bv, hack_x, hack_y, hack_button);
 141                         hack_x = hack_y = 0;
 142                 }
 143         } else
 144                 metrics(bv);
 145         // if that is removed, we won't get the magenta box when entering an
 146         // inset for the first time
 147         bv->updateInset(this, false);
 148 }
 149
 150
 151 void InsetFormulaBase::edit(BufferView * bv, bool front)
 152 {
 153         // looks hackish but seems to work
 154         edit(bv, front ? 0 : 1, 0, 0);
 155 }
 156
 157
 158 void InsetFormulaBase::insetUnlock(BufferView * bv)
 159 {
 160         if (mathcursor) {
 161                 if (mathcursor->inMacroMode()) {
 162                         mathcursor->macroModeClose();
 163                         updateLocal(bv, true);
 164                 }
 165                 delete mathcursor;
 166                 mathcursor = 0;
 167         }
 168         bv->updateInset(this, false);
 169 }
 170
 171
 172 void InsetFormulaBase::getCursorPos(BufferView *, int & x, int & y) const
 173 {
 174         mathcursor->getPos(x, y);
 175         x += xo_;
 176         y += yo_;
 177         //lyxerr << "getCursorPos: " << x << " " << y << "\n";
 178 }
 179
 180
 181 void InsetFormulaBase::toggleInsetCursor(BufferView * bv)
 182 {
 183         if (!mathcursor)
 184                 return;
 185
 186         if (isCursorVisible())
 187                 bv->hideLockedInsetCursor();
 188         else {
 189                 metrics(bv);
 190                 int x;
 191                 int y;
 192                 mathcursor->getPos(x, y);
 193                 y -= yo_;
 194                 int asc = 0;
 195                 int des = 0;
 196                 MathMetricsInfo mi(bv, font_, display() ? LM_ST_DISPLAY : LM_ST_TEXT);
 197                 math_font_max_dim(LM_TC_TEXTRM, mi, asc, des);
 198                 bv->showLockedInsetCursor(x, y, asc, des);
 199                 //lyxerr << "toggleInsetCursor: " << x << " " << y << "\n";
 200         }
 201
 202         toggleCursorVisible();
 203 }
 204
 205
 206 void InsetFormulaBase::showInsetCursor(BufferView * bv, bool)
 207 {
 208         if (isCursorVisible())
 209                 return;
 210         if (mathcursor) {
 211                 metrics(bv);
 212                 int x;
 213                 int y;
 214                 mathcursor->getPos(x, y);
 215                 y -= yo_;
 216                 int asc = 0;
 217                 int des = 0;
 218                 MathMetricsInfo mi(bv, font_, display() ? LM_ST_DISPLAY : LM_ST_TEXT);
 219                 math_font_max_dim(LM_TC_TEXTRM, mi, asc, des);
 220                 bv->fitLockedInsetCursor(x, y, asc, des);
 221                 //lyxerr << "showInsetCursor: x: " << x << " y: " << y << " yo: " << yo_ << "\n";
 222         }
 223         toggleInsetCursor(bv);
 224 }
 225
 226
 227 void InsetFormulaBase::hideInsetCursor(BufferView * bv)
 228 {
 229         if (isCursorVisible())
 230                 toggleInsetCursor(bv);
 231 }
 232
 233
 234 void InsetFormulaBase::toggleInsetSelection(BufferView * bv)
 235 {
 236         if (mathcursor)
 237                 bv->updateInset(this, false);
 238 }
 239
 240
 241 vector<string> const InsetFormulaBase::getLabelList() const
 242 {
 243   return std::vector<string>();
 244 }
 245
 246
 247 void InsetFormulaBase::updateLocal(BufferView * bv, bool dirty)
 248 {
 249         metrics(bv);
 250         bv->updateInset(this, dirty);
 251 }
 252
 253
 254 bool InsetFormulaBase::insetButtonRelease(BufferView * bv,
 255                                           int /*x*/, int /*y*/, int /*button*/)
 256 {
 257         if (!mathcursor)
 258                 return false;
 259         //lyxerr << "insetButtonRelease: " << x << " " << y << "\n";
 260         hideInsetCursor(bv);
 261         showInsetCursor(bv);
 262         bv->updateInset(this, false);
 263         return false;
 264 }
 265
 266
 267 void InsetFormulaBase::insetButtonPress(BufferView * bv,
 268                                         int x, int y, int button)
 269 {
 270         // hack to cope with mouseclick that comes before the call to edit()
 271         if (!mathcursor) {
 272                 hack_x = x;
 273                 hack_y = y;
 274                 hack_button = button;
 275                 return;
 276         }
 277
 278         lyxerr << "insetButtonPress: " << x + xo_ << " " << y + yo_
 279                 << " but: " << button << "\n";
 280         switch (button) {
 281                 default:
 282                 case 1:
 283                         // just click
 284                         first_x = x;
 285                         first_y = y;
 286                         if (mathcursor) {
 287                                 mathcursor->selClear();
 288                                 mathcursor->setPos(x + xo_, y + yo_);
 289                         }
 290                         break;
 291 /*
 292                 case 2:
 293                         lyxerr << "insetButtonPress: 2\n";
 294                         // insert stuff
 295                         if (mathcursor) {
 296                                 bv->lockedInsetStoreUndo(Undo::EDIT);
 297                                 MathArray ar;
 298                                 mathcursor->selGet(ar);
 299                                 mathcursor->setPos(x + xo_, y + yo_);
 300                                 string sel =
 301                                         bv->getLyXText()->selectionAsString(bv->buffer(), false);
 302                                 mathed_parse_cell(ar, sel);
 303                                 mathcursor->insert(ar);
 304                         }
 305                         break;
 306 */
 307         }
 308         bv->updateInset(this, false);
 309 }
 310
 311
 312 void InsetFormulaBase::insetMotionNotify(BufferView * bv,
 313                                          int x, int y, int /*button*/)
 314 {
 315         if (!mathcursor)
 316                 return;
 317
 318         if (abs(x - first_x) < 2 && abs(y - first_y) < 2) {
 319                 //lyxerr << "insetMotionNotify: ignored\n";
 320                 return;
 321         }
 322         first_x = x;
 323         first_y = y;
 324
 325         if (!mathcursor->selection())
 326                 mathcursor->selStart();
 327
 328         //lyxerr << "insetMotionNotify: " << x + xo_ << ' ' << y + yo_
 329         //      << ' ' << button << "\n";
 330         hideInsetCursor(bv);
 331         mathcursor->setPos(x + xo_, y + yo_);
 332         showInsetCursor(bv);
 333         bv->updateInset(this, false);
 334 }
 335
 336
 337 void InsetFormulaBase::insetKeyPress(XKeyEvent *)
 338 {
 339         lyxerr[Debug::MATHED] << "Used InsetFormulaBase::InsetKeyPress." << endl;
 340 }
 341
 342
 343 UpdatableInset::RESULT
 344 InsetFormulaBase::localDispatch(BufferView * bv, kb_action action,
 345                             string const & arg)
 346 {
 347         //lyxerr << "InsetFormulaBase::localDispatch: act: " << action
 348         //      << " arg: '" << arg << "' cursor: " << mathcursor << "\n";
 349
 350         if (!mathcursor)
 351                 return UNDISPATCHED;
 352
 353         if (mathcursor->asHyperActiveInset()) {
 354                 lyxerr << " uurr.... getting dificult now\n";
 355                 return mathcursor->asHyperActiveInset()->localDispatch(bv, action, arg);
 356         }
 357
 358         RESULT result      = DISPATCHED;
 359         bool sel           = false;
 360         bool was_macro     = mathcursor->inMacroMode();
 361         bool was_selection = mathcursor->selection();
 362
 363         hideInsetCursor(bv);
 364
 365         mathcursor->normalize();
 366         switch (action) {
 367
 368                 // --- Cursor Movements ---------------------------------------------
 369
 370         case LFUN_RIGHTSEL:
 371                 sel = true; // fall through...
 372
 373         case LFUN_RIGHT:
 374                 result = mathcursor->right(sel) ? DISPATCHED : FINISHED_RIGHT;
 375                 updateLocal(bv, false);
 376                 // write something to the minibuffer
 377                 //bv->owner()->message(mathcursor->info());
 378                 break;
 379
 380
 381         case LFUN_LEFTSEL:
 382                 sel = true; // fall through
 383
 384         case LFUN_LEFT:
 385                 result = mathcursor->left(sel) ? DISPATCHED : FINISHED;
 386                 updateLocal(bv, false);
 387                 break;
 388
 389
 390         case LFUN_UPSEL:
 391                 sel = true;
 392
 393         case LFUN_UP:
 394                 result = mathcursor->up(sel) ? DISPATCHED : FINISHED_UP;
 395                 updateLocal(bv, false);
 396                 break;
 397
 398
 399         case LFUN_DOWNSEL:
 400                 sel = true;
 401
 402         case LFUN_DOWN:
 403                 result = mathcursor->down(sel) ? DISPATCHED : FINISHED_DOWN;
 404                 updateLocal(bv, false);
 405                 break;
 406
 407         case LFUN_HOMESEL:
 408                 sel = true;
 409
 410         case LFUN_HOME:
 411                 mathcursor->home(sel);
 412                 updateLocal(bv, false);
 413                 break;
 414
 415         case LFUN_ENDSEL:
 416                 sel = true;
 417
 418         case LFUN_END:
 419                 mathcursor->end(sel);
 420                 updateLocal(bv, false);
 421                 break;
 422
 423         case LFUN_DELETE_LINE_FORWARD:
 424                 bv->lockedInsetStoreUndo(Undo::DELETE);
 425                 mathcursor->delLine();
 426                 updateLocal(bv, true);
 427                 break;
 428
 429         case LFUN_TAB:
 430                 mathcursor->idxNext();
 431                 updateLocal(bv, false);
 432                 break;
 433
 434         case LFUN_SHIFT_TAB:
 435                 mathcursor->idxPrev();
 436                 updateLocal(bv, false);
 437                 break;
 438
 439         case LFUN_TABINSERT:
 440                 bv->lockedInsetStoreUndo(Undo::EDIT);
 441                 mathcursor->splitCell();
 442                 updateLocal(bv, true);
 443                 break;
 444
 445         case LFUN_DELETE_WORD_BACKWARD:
 446         case LFUN_BACKSPACE:
 447                 bv->lockedInsetStoreUndo(Undo::DELETE);
 448                 mathcursor->backspace();
 449                 bv->updateInset(this, true);
 450                 break;
 451
 452         case LFUN_DELETE_WORD_FORWARD:
 453         case LFUN_DELETE:
 454                 bv->lockedInsetStoreUndo(Undo::DELETE);
 455                 mathcursor->erase();
 456                 bv->updateInset(this, true);
 457                 break;
 458
 459         //    case LFUN_GETXY:
 460         //      sprintf(dispatch_buffer, "%d %d",);
 461         //      dispatch_result = dispatch_buffer;
 462         //      break;
 463         case LFUN_SETXY: {
 464                 lyxerr << "LFUN_SETXY broken!\n";
 465                 int x = 0;
 466                 int y = 0;
 467                 istringstream is(arg.c_str());
 468                 is >> x >> y;
 469                 mathcursor->setPos(x, y);
 470                 updateLocal(bv, false);
 471                 break;
 472         }
 473
 474         case LFUN_PASTE:
 475                 if (was_macro)
 476                         mathcursor->macroModeClose();
 477                 bv->lockedInsetStoreUndo(Undo::EDIT);
 478                 mathcursor->selPaste();
 479                 updateLocal(bv, true);
 480                 break;
 481
 482         case LFUN_CUT:
 483                 bv->lockedInsetStoreUndo(Undo::DELETE);
 484                 mathcursor->selCut();
 485                 updateLocal(bv, true);
 486                 break;
 487
 488         case LFUN_COPY:
 489                 mathcursor->selCopy();
 490                 break;
 491
 492         case LFUN_WORDRIGHTSEL:
 493         case LFUN_WORDLEFTSEL:
 494                 break;
 495
 496                 // --- accented characters ------------------------------
 497
 498         case LFUN_UMLAUT:       handleAccent(bv, arg, "ddot"); break;
 499         case LFUN_CIRCUMFLEX:   handleAccent(bv, arg, "hat"); break;
 500         case LFUN_GRAVE:        handleAccent(bv, arg, "grave"); break;
 501         case LFUN_ACUTE:        handleAccent(bv, arg, "acute"); break;
 502         case LFUN_TILDE:        handleAccent(bv, arg, "tilde"); break;
 503         case LFUN_MACRON:       handleAccent(bv, arg, "bar"); break;
 504         case LFUN_DOT:          handleAccent(bv, arg, "dot"); break;
 505         case LFUN_CARON:        handleAccent(bv, arg, "check"); break;
 506         case LFUN_BREVE:        handleAccent(bv, arg, "breve"); break;
 507         case LFUN_VECTOR:       handleAccent(bv, arg, "vec"); break;
 508         case LFUN_UNDERBAR:     handleAccent(bv, arg, "underbar"); break;
 509
 510         //  Math fonts
 511         case LFUN_GREEK_TOGGLE: handleFont(bv, arg, LM_TC_GREEK); break;
 512         case LFUN_BOLD:         handleFont(bv, arg, LM_TC_BF); break;
 513         case LFUN_SANS:         handleFont(bv, arg, LM_TC_SF); break;
 514         case LFUN_EMPH:         handleFont(bv, arg, LM_TC_CAL); break;
 515         case LFUN_ROMAN:        handleFont(bv, arg, LM_TC_RM); break;
 516         case LFUN_CODE:         handleFont(bv, arg, LM_TC_TT); break;
 517         case LFUN_FRAK:         handleFont(bv, arg, LM_TC_EUFRAK); break;
 518         case LFUN_ITAL:         handleFont(bv, arg, LM_TC_IT); break;
 519         case LFUN_NOUN:         handleFont(bv, arg, LM_TC_BB); break;
 520         case LFUN_DEFAULT:      handleFont(bv, arg, LM_TC_VAR); break;
 521         case LFUN_FREE:         handleFont(bv, arg, LM_TC_TEXTRM); break;
 522
 523         case LFUN_GREEK:
 524                 handleFont(bv, arg, LM_TC_GREEK1);
 525                 if (arg.size())
 526                         mathcursor->interpret(arg);
 527                 break;
 528
 529         case LFUN_MATH_MODE:
 530                 //handleFont(bv, arg, LM_TC_TEXTRM);
 531
 532                 //mathcursor->niceInsert(MathAtom(new MathHullInset(LM_OT_SIMPLE)));
 533                 //updateLocal(bv, true);
 534
 535                 //bv->owner()->message(_("math text mode toggled"));
 536                 break;
 537
 538         case LFUN_MATH_LIMITS:
 539                 bv->lockedInsetStoreUndo(Undo::EDIT);
 540                 if (mathcursor->toggleLimits())
 541                         updateLocal(bv, true);
 542                 break;
 543
 544         case LFUN_MATH_SIZE:
 545 #if 0
 546                 if (!arg.empty()) {
 547                         bv->lockedInsetStoreUndo(Undo::EDIT);
 548                         mathcursor->setSize(arg);
 549                         updateLocal(bv, true);
 550                 }
 551 #endif
 552                 break;
 553
 554         case LFUN_INSERT_MATRIX:
 555                 if (!arg.empty()) {
 556                         bv->lockedInsetStoreUndo(Undo::EDIT);
 557                         mathcursor->interpret("matrix " + arg);
 558                         updateLocal(bv, true);
 559                 }
 560                 break;
 561
 562         case LFUN_MATH_SPACE:
 563         {
 564                 bv->lockedInsetStoreUndo(Undo::EDIT);
 565                 mathcursor->insert(MathAtom(new MathSpaceInset(1)));
 566                 updateLocal(bv, true);
 567                 break;
 568         }
 569
 570         case LFUN_SUPERSCRIPT:
 571         case LFUN_SUBSCRIPT:
 572         {
 573                 bv->lockedInsetStoreUndo(Undo::EDIT);
 574                 mathcursor->script((action == LFUN_SUPERSCRIPT));
 575                 updateLocal(bv, true);
 576                 break;
 577         }
 578
 579         case LFUN_MATH_DELIM:
 580         {
 581                 lyxerr << "formulabase::LFUN_MATH_DELIM, arg: '" << arg << "'\n";
 582                 string ls;
 583                 string rs;
 584                 istringstream is(arg.c_str());
 585                 is >> ls >> rs;
 586                 if (!is) {
 587                         lyxerr << "can't parse delimeters from '" << arg << "'\n";
 588                         break;
 589                 }
 590                 bv->lockedInsetStoreUndo(Undo::EDIT);
 591                 mathcursor->handleDelim(ls, rs);
 592                 updateLocal(bv, true);
 593                 break;
 594         }
 595
 596         case LFUN_PROTECTEDSPACE:
 597                 //lyxerr << " called LFUN_PROTECTEDSPACE\n";
 598                 bv->lockedInsetStoreUndo(Undo::EDIT);
 599                 mathcursor->insert(MathAtom(new MathSpaceInset(1)));
 600                 updateLocal(bv, true);
 601                 break;
 602
 603         case LFUN_UNDO:
 604                 bv->owner()->message(_("Invalid action in math mode!"));
 605                 break;
 606
 607
 608         case LFUN_MATH_HALIGN:
 609         case LFUN_MATH_VALIGN:
 610         case LFUN_MATH_ROW_INSERT:
 611         case LFUN_MATH_ROW_DELETE:
 612         case LFUN_MATH_COLUMN_INSERT:
 613         case LFUN_MATH_COLUMN_DELETE:
 614         {
 615                 MathInset::idx_type idx = 0;
 616                 MathGridInset * p = mathcursor ? mathcursor->enclosingGrid(idx) : 0;
 617                 if (p) {
 618                         bv->lockedInsetStoreUndo(Undo::EDIT);
 619                         char al = arg.size() ? arg[0] : 'c';
 620                         switch (action) {
 621                                 case LFUN_MATH_HALIGN: p->halign(al, p->col(idx)); break;
 622                                 case LFUN_MATH_VALIGN: p->valign(al); break;
 623                                 case LFUN_MATH_ROW_INSERT: p->addRow(p->row(idx)); break;
 624                                 case LFUN_MATH_ROW_DELETE: p->delRow(p->row(idx)); break;
 625                                 case LFUN_MATH_COLUMN_INSERT: p->addCol(p->col(idx)); break;
 626                                 case LFUN_MATH_COLUMN_DELETE: p->delCol(p->col(idx)); break;
 627                                 default: ;
 628                         }
 629                         updateLocal(bv, true);
 630                 }
 631                 break;
 632         }
 633
 634         case LFUN_EXEC_COMMAND:
 635                 result = UNDISPATCHED;
 636                 break;
 637
 638         case LFUN_BREAKPARAGRAPH:
 639         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
 640                 //lyxerr << "LFUN ignored\n";
 641                 break;
 642
 643         case LFUN_INSET_ERT:
 644                 // interpret this as if a backslash was typed
 645                 bv->lockedInsetStoreUndo(Undo::EDIT);
 646                 mathcursor->interpret("\\");
 647                 updateLocal(bv, true);
 648                 break;
 649
 650         case -1:
 651         case LFUN_INSERT_MATH:
 652         case LFUN_SELFINSERT:
 653                 if (!arg.empty()) {
 654                         bv->lockedInsetStoreUndo(Undo::EDIT);
 655                         result = mathcursor->interpret(arg) ? DISPATCHED : FINISHED_RIGHT;
 656                         updateLocal(bv, true);
 657                 }
 658                 break;
 659
 660         case LFUN_MATH_PANEL:
 661                 result = UNDISPATCHED;
 662                 break;
 663
 664         case LFUN_ESCAPE:
 665                 if (mathcursor->selection())
 666                         mathcursor->selClear();
 667                 else
 668                         result = UNDISPATCHED;
 669                 break;
 670
 671         default:
 672                 result = UNDISPATCHED;
 673         }
 674
 675         mathcursor->normalize();
 676
 677         lyx::Assert(mathcursor);
 678
 679         if (mathcursor->selection() || was_selection)
 680                 toggleInsetSelection(bv);
 681
 682         if (result == DISPATCHED || result == DISPATCHED_NOUPDATE ||
 683             result == UNDISPATCHED)
 684                 showInsetCursor(bv);
 685         else
 686                 bv->unlockInset(this);
 687
 688         return result;  // original version
 689 }
 690
 691
 692 Inset::Code InsetFormulaBase::lyxCode() const
 693 {
 694         return Inset::MATH_CODE;
 695 }
 696
 697
 698 int InsetFormulaBase::ylow() const
 699 {
 700         return yo_ - ascent(view_, font_);
 701 }
 702
 703
 704 int InsetFormulaBase::yhigh() const
 705 {
 706         return yo_ + descent(view_, font_);
 707 }
 708
 709
 710 int InsetFormulaBase::xlow() const
 711 {
 712         return xo_;
 713 }
 714
 715
 716 int InsetFormulaBase::xhigh() const
 717 {
 718         return xo_ + width(view_, font_);
 719 }
 720
 721
 722 /////////////////////////////////////////////////////////////////////
 723
 724
 725 bool InsetFormulaBase::searchForward(BufferView * bv, string const & str,
 726                                      bool, bool)
 727 {
 728 #ifdef WITH_WARNINGS
 729 #warning pretty ugly
 730 #endif
 731         static InsetFormulaBase * lastformula = 0;
 732         static MathIterator current = MathIterator(ibegin(par().nucleus()));
 733         static MathArray ar;
 734         static string laststr;
 735
 736         if (lastformula != this || laststr != str) {
 737                 //lyxerr << "reset lastformula to " << this << "\n";
 738                 lastformula = this;
 739                 laststr = str;
 740                 current = ibegin(par().nucleus());
 741                 ar.clear();
 742                 mathed_parse_cell(ar, str);
 743         } else {
 744                 ++current;
 745         }
 746         //lyxerr << "searching '" << str << "' in " << this << ar << endl;
 747
 748         for (MathIterator it = current; it != iend(par().nucleus()); ++it) {
 749                 if (it.cell().matchpart(ar, it.position().pos_)) {
 750                         mathcursor->setSelection(it.cursor(), ar.size());
 751                         current = it;
 752                         it.jump(ar.size());
 753                         // I guess some of the following can go
 754                         bv->toggleSelection(true);
 755                         hideInsetCursor(bv);
 756                         updateLocal(bv, true);
 757                         showInsetCursor(bv);
 758                         metrics(bv);
 759                         return true;
 760                 }
 761         }
 762
 763         //lyxerr << "not found!\n";
 764         lastformula = 0;
 765         // we have to unlock ourself in this function by default!
 766         // don't ask me why...
 767         bv->unlockInset(this);
 768         return false;
 769 }
 770
 771
 772 bool InsetFormulaBase::searchBackward(BufferView * bv, string const & what,
 773                                       bool a, bool b)
 774 {
 775         lyxerr << "searching backward not implemented in mathed" << endl;
 776         return searchForward(bv, what, a, b);
 777 }
 778
 779
 780
 781 void InsetFormulaBase::handleAccent(BufferView * bv,
 782         string const & arg, string const & name)
 783 {
 784         bv->lockedInsetStoreUndo(Undo::EDIT);
 785         MathAtom at = createMathInset(name);
 786         mathed_parse_cell(at->cell(0), arg);
 787         mathcursor->insert(at);
 788         updateLocal(bv, true);
 789 }
 790
 791
 792 /////////////////////////////////////////////////////////////////////
 793
 794
 795 void mathDispatchCreation(BufferView * bv, string const & arg, bool display)
 796 {
 797         if (bv->available()) {
 798                 // use selection if available..
 799                 //string sel;
 800                 //if (action == LFUN_MATH_IMPORT_SELECTION)
 801                 //      sel = "";
 802                 //else
 803
 804                 string sel = bv->getLyXText()->selectionAsString(bv->buffer(), false);
 805
 806                 InsetFormulaBase * f;
 807                 if (sel.empty()) {
 808                         f = new InsetFormula;
 809                         if (openNewInset(bv, f)) {
 810                                 // don't do that also for LFUN_MATH_MODE unless you want end up with
 811                                 // always changing to mathrm when opening an inlined inset
 812                                 // -- I really hate "LyXfunc overloading"...
 813                                 if (display)
 814                                         f->localDispatch(bv, LFUN_MATH_DISPLAY, string());
 815                                 f->localDispatch(bv, LFUN_INSERT_MATH, arg);
 816                         }
 817                 } else {
 818                         // create a macro if we see "\\newcommand" somewhere, and an ordinary
 819                         // formula otherwise
 820                         if (sel.find("\\newcommand") == string::npos)
 821                                 f = new InsetFormula(sel);
 822                         else
 823                                 f = new InsetFormulaMacro(sel);
 824                         bv->getLyXText()->cutSelection(bv);
 825                         openNewInset(bv, f);
 826                 }
 827         }
 828         bv->owner()->getLyXFunc()->setMessage(N_("Math editor mode"));
 829 }
 830
 831
 832 void mathDispatchMathDisplay(BufferView * bv, string const & arg)
 833 {
 834         mathDispatchCreation(bv, arg, true);
 835 }
 836
 837
 838 void mathDispatchMathMode(BufferView * bv, string const & arg)
 839 {
 840         mathDispatchCreation(bv, arg, false);
 841 }
 842
 843
 844 void mathDispatchMathImportSelection(BufferView * bv, string const & arg)
 845 {
 846         mathDispatchCreation(bv, arg, true);
 847 }
 848
 849
 850 void mathDispatchMathMacro(BufferView * bv, string const & arg)
 851 {
 852         if (bv->available()) {
 853                 if (arg.empty())
 854                         bv->owner()->getLyXFunc()->setErrorMessage(N_("Missing argument"));
 855                 else {
 856                         string s(arg);
 857                         string const s1 = token(s, ' ', 1);
 858                         int const na = s1.empty() ? 0 : lyx::atoi(s1);
 859                         openNewInset(bv, new InsetFormulaMacro(token(s, ' ', 0), na));
 860                 }
 861         }
 862 }
 863
 864
 865 void mathDispatchMathDelim(BufferView * bv, string const & arg)
 866 {
 867         if (bv->available()) {
 868                 if (openNewInset(bv, new InsetFormula))
 869                         bv->theLockingInset()->localDispatch(bv, LFUN_MATH_DELIM, arg);
 870         }
 871 }
 872
 873
 874 void mathDispatchInsertMatrix(BufferView * bv, string const & arg)
 875 {
 876         if (bv->available()) {
 877                 if (openNewInset(bv, new InsetFormula))
 878                         bv->theLockingInset()->localDispatch(bv, LFUN_INSERT_MATRIX, arg);
 879         }
 880 }
 881
 882
 883 void mathDispatchInsertMath(BufferView * bv, string const & arg)
 884 {
 885         if (bv->available()) {
 886                 if (arg.size() && arg[0] == '\\') {
 887                         InsetFormula * f = new InsetFormula(arg);
 888                         if (!bv->insertInset(f))
 889                                 delete f;
 890                 } else
 891                         mathDispatchMathMode(bv, arg);
 892         }
 893 }
 894
 895
 896 void mathDispatchGreek(BufferView * bv, string const & arg)
 897 {
 898         if (bv->available()) {
 899                 InsetFormula * f = new InsetFormula;
 900                 if (openNewInset(bv, f)) {
 901                         bv->theLockingInset()->localDispatch(bv, LFUN_GREEK, arg);
 902                         bv->unlockInset(f);
 903                 }
 904         }
 905 }
 906
 907
 908 void mathDispatch(BufferView *, kb_action, string const &)
 909 {}