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 "frontends/LyXView.h"
  37 #include "frontends/font_metrics.h"
  38 #include "frontends/mouse_state.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_fontinset.h"
  45 #include "math_hullinset.h"
  46 #include "math_iterator.h"
  47 #include "math_macrotable.h"
  48 #include "math_parser.h"
  49 #include "math_pos.h"
  50 #include "math_spaceinset.h"
  51 #include "undo_funcs.h"
  52 #include "textpainter.h"
  53 #include "frontends/Dialogs.h"
  54 #include "intl.h"
  55
  56 using std::endl;
  57 using std::ostream;
  58 using std::vector;
  59 using std::abs;
  60
  61 MathCursor * mathcursor = 0;
  62
  63
  64 namespace {
  65
  66 // local global
  67 int first_x;
  68 int first_y;
  69
  70
  71
  72 bool openNewInset(BufferView * bv, UpdatableInset * new_inset)
  73 {
  74         if (!bv->insertInset(new_inset)) {
  75                 delete new_inset;
  76                 return false;
  77         }
  78         new_inset->edit(bv, 0, 0, mouse_button::none);
  79         return true;
  80 }
  81
  82
  83 } // namespace anon
  84
  85
  86
  87 InsetFormulaBase::InsetFormulaBase()
  88         : view_(0), font_(), xo_(0), yo_(0)
  89 {
  90         // This is needed as long the math parser is not re-entrant
  91         MathMacroTable::builtinMacros();
  92         //lyxerr << "sizeof MathInset: " << sizeof(MathInset) << "\n";
  93         //lyxerr << "sizeof(MathMetricsInfo): " << sizeof(MathMetricsInfo) << "\n";
  94         //lyxerr << "sizeof(MathCharInset): " << sizeof(MathCharInset) << "\n";
  95         //lyxerr << "sizeof(LyXFont): " << sizeof(LyXFont) << "\n";
  96 }
  97
  98
  99 // simply scrap this function if you want
 100 void InsetFormulaBase::mutateToText()
 101 {
 102 #if 0
 103         // translate to latex
 104         ostringstream os;
 105         latex(NULL, os, false, false);
 106         string str = os.str();
 107
 108         // insert this text
 109         LyXText * lt = view_->getLyXText();
 110         string::const_iterator cit = str.begin();
 111         string::const_iterator end = str.end();
 112         for (; cit != end; ++cit)
 113                 view_->owner()->getIntl()->getTrans().TranslateAndInsert(*cit, lt);
 114
 115         // remove ourselves
 116         //view_->owner()->getLyXFunc()->dispatch(LFUN_ESCAPE);
 117 #endif
 118 }
 119
 120
 121 void InsetFormulaBase::handleFont
 122         (BufferView * bv, string const & arg, string const & font)
 123 {
 124         bv->lockedInsetStoreUndo(Undo::EDIT);
 125         bool sel = mathcursor->selection();
 126         if (sel)
 127                 updateLocal(bv, true);
 128         mathcursor->handleNest(new MathFontInset(font));
 129   for (string::const_iterator it = arg.begin(); it != arg.end(); ++it)
 130     mathcursor->insert(*it);
 131         if (!sel)
 132                 updateLocal(bv, false);
 133 }
 134
 135
 136 // Check if uses AMS macros
 137 void InsetFormulaBase::validate(LaTeXFeatures &) const
 138 {}
 139
 140
 141 void InsetFormulaBase::metrics(BufferView * bv, LyXFont const & f) const
 142 {
 143         font_ = f;
 144         metrics(bv);
 145 }
 146
 147
 148 void InsetFormulaBase::metrics(BufferView * bv) const
 149 {
 150         if (bv)
 151                 view_ = bv;
 152         MathMetricsInfo mi;
 153         mi.view       = view_;
 154         mi.base.style = display() ? LM_ST_DISPLAY : LM_ST_TEXT;
 155         mi.base.font  = font_;
 156         mi.base.font.setColor(LColor::math);
 157         par()->metrics(mi);
 158 }
 159
 160
 161 string const InsetFormulaBase::editMessage() const
 162 {
 163         return _("Math editor mode");
 164 }
 165
 166
 167 void InsetFormulaBase::edit(BufferView * bv, int x, int y, mouse_button::state)
 168 {
 169         if (!bv->lockInset(this))
 170                 lyxerr[Debug::MATHED] << "Cannot lock inset!!!" << endl;
 171         delete mathcursor;
 172         mathcursor = new MathCursor(this, true);
 173         metrics(bv);
 174         mathcursor->setPos(x, y);
 175         //lyxerr << "setting pos to " << x << "," << y << "\n";
 176
 177         // if that is removed, we won't get the magenta box when entering an
 178         // inset for the first time
 179         bv->updateInset(this, false);
 180 }
 181
 182
 183 void InsetFormulaBase::edit(BufferView * bv, bool front)
 184 {
 185         if (!bv->lockInset(this))
 186                 lyxerr[Debug::MATHED] << "Cannot lock inset!!!" << endl;
 187         delete mathcursor;
 188         mathcursor = new MathCursor(this, front);
 189         metrics(bv);
 190         bv->updateInset(this, false);
 191 }
 192
 193
 194 void InsetFormulaBase::insetUnlock(BufferView * bv)
 195 {
 196         if (mathcursor) {
 197                 if (mathcursor->inMacroMode()) {
 198                         mathcursor->macroModeClose();
 199                         updateLocal(bv, true);
 200                 }
 201                 delete mathcursor;
 202                 mathcursor = 0;
 203         }
 204         bv->updateInset(this, false);
 205 }
 206
 207
 208 void InsetFormulaBase::getCursorPos(BufferView *, int & x, int & y) const
 209 {
 210         mathcursor->getPos(x, y);
 211         //x -= xo_;
 212         y -= yo_;
 213         //lyxerr << "getCursorPos: " << x << " " << y << "\n";
 214 }
 215
 216
 217 void InsetFormulaBase::toggleInsetCursor(BufferView * bv)
 218 {
 219         if (!mathcursor)
 220                 return;
 221
 222         if (isCursorVisible())
 223                 bv->hideLockedInsetCursor();
 224         else {
 225                 metrics(bv);
 226                 int x;
 227                 int y;
 228                 mathcursor->getPos(x, y);
 229                 y -= yo_;
 230                 int asc = 0;
 231                 int des = 0;
 232                 math_font_max_dim(font_, asc, des);
 233                 bv->showLockedInsetCursor(x, y, asc, des);
 234                 //lyxerr << "toggleInsetCursor: " << x << " " << y << "\n";
 235         }
 236
 237         toggleCursorVisible();
 238 }
 239
 240
 241 void InsetFormulaBase::showInsetCursor(BufferView * bv, bool)
 242 {
 243         if (isCursorVisible())
 244                 return;
 245         if (mathcursor) {
 246                 metrics(bv);
 247                 int x;
 248                 int y;
 249                 mathcursor->getPos(x, y);
 250                 y -= yo_;
 251                 int asc = 0;
 252                 int des = 0;
 253                 math_font_max_dim(font_, asc, des);
 254                 bv->fitLockedInsetCursor(x, y, asc, des);
 255                 //lyxerr << "showInsetCursor: x: " << x << " y: " << y << " yo: " << yo_ << "\n";
 256         }
 257         toggleInsetCursor(bv);
 258 }
 259
 260
 261 void InsetFormulaBase::hideInsetCursor(BufferView * bv)
 262 {
 263         if (isCursorVisible())
 264                 toggleInsetCursor(bv);
 265 }
 266
 267
 268 void InsetFormulaBase::toggleInsetSelection(BufferView * bv)
 269 {
 270         if (mathcursor)
 271                 bv->updateInset(this, false);
 272 }
 273
 274
 275 vector<string> const InsetFormulaBase::getLabelList() const
 276 {
 277   return vector<string>();
 278 }
 279
 280
 281 void InsetFormulaBase::updateLocal(BufferView * bv, bool dirty)
 282 {
 283         metrics(bv);
 284         bv->updateInset(this, dirty);
 285 }
 286
 287
 288 bool InsetFormulaBase::insetButtonRelease(BufferView * bv,
 289                                           int /*x*/, int /*y*/, mouse_button::state button)
 290 {
 291         //lyxerr << "insetButtonRelease: " << x << " " << y << "\n";
 292
 293         if (!mathcursor)
 294                 return false;
 295         hideInsetCursor(bv);
 296         showInsetCursor(bv);
 297         bv->updateInset(this, false);
 298
 299         if (button == mouse_button::button3) {
 300                 // launch math panel for right mouse button
 301                 bv->owner()->getDialogs()->showMathPanel();
 302                 return true;
 303         }
 304         return false;
 305 }
 306
 307
 308 void InsetFormulaBase::insetButtonPress(BufferView * bv,
 309                                         int x, int y, mouse_button::state button)
 310 {
 311         //lyxerr << "insetButtonPress: "
 312         //      << x << " " << y << " but: " << button << "\n";
 313 #if 0
 314         switch (button) {
 315                 default:
 316                 case 1:
 317                         // left click
 318                         delete mathcursor;
 319                         mathcursor = new MathCursor(this, x == 0);
 320                         metrics(bv);
 321                         first_x = x;
 322                         first_y = y;
 323                         mathcursor->selClear();
 324                         mathcursor->setPos(x + xo_, y + yo_);
 325                         break;
 326 /*
 327                 case 2:
 328                         lyxerr << "insetButtonPress: 2\n";
 329                         // insert stuff
 330                         if (mathcursor) {
 331                                 bv->lockedInsetStoreUndo(Undo::EDIT);
 332                                 MathArray ar;
 333                                 mathcursor->selGet(ar);
 334                                 mathcursor->setPos(x + xo_, y + yo_);
 335                                 string sel =
 336                                         bv->getLyXText()->selectionAsString(bv->buffer(), false);
 337                                 mathed_parse_cell(ar, sel);
 338                                 mathcursor->insert(ar);
 339                         }
 340                         break;
 341 */
 342                 case 3:
 343                         // launch math panel for right mouse button
 344                         bv->owner()->getDialogs()->showMathPanel();
 345                         break;
 346         }
 347 #else
 348         if (button == mouse_button::button1 || !mathcursor) {
 349                 delete mathcursor;
 350                 mathcursor = new MathCursor(this, x == 0);
 351                 metrics(bv);
 352                 first_x = x;
 353                 first_y = y;
 354                 mathcursor->selClear();
 355                 mathcursor->setPos(x + xo_, y + yo_);
 356         }
 357 #if 0
 358 #warning Never launch a Dialog on "Press" event ONLY on "Release" event!
 359         if (button == 3) {
 360                 // launch math panel for right mouse button
 361                 bv->owner()->getDialogs()->showMathPanel();
 362         }
 363 #endif
 364 #endif
 365         bv->updateInset(this, false);
 366 }
 367
 368
 369 void InsetFormulaBase::insetMotionNotify(BufferView * bv,
 370         int x, int y, mouse_button::state)
 371 {
 372         if (!mathcursor)
 373                 return;
 374
 375         if (abs(x - first_x) < 2 && abs(y - first_y) < 2) {
 376                 //lyxerr << "insetMotionNotify: ignored\n";
 377                 return;
 378         }
 379         first_x = x;
 380         first_y = y;
 381
 382         if (!mathcursor->selection())
 383                 mathcursor->selStart();
 384
 385         //lyxerr << "insetMotionNotify: " << x + xo_ << ' ' << y + yo_
 386         //      << ' ' << button << "\n";
 387         hideInsetCursor(bv);
 388         mathcursor->setPos(x + xo_, y + yo_);
 389         showInsetCursor(bv);
 390         bv->updateInset(this, false);
 391 }
 392
 393
 394 UpdatableInset::RESULT
 395 InsetFormulaBase::localDispatch(BufferView * bv, kb_action action,
 396                             string const & arg)
 397 {
 398         //lyxerr << "InsetFormulaBase::localDispatch: act: " << action
 399         //      << " arg: '" << arg << "' cursor: " << mathcursor << "\n";
 400
 401         if (!mathcursor)
 402                 return UNDISPATCHED;
 403
 404         RESULT result      = DISPATCHED;
 405         bool sel           = false;
 406         bool was_macro     = mathcursor->inMacroMode();
 407         bool was_selection = mathcursor->selection();
 408
 409         hideInsetCursor(bv);
 410
 411         mathcursor->normalize();
 412         mathcursor->touch();
 413
 414         switch (action) {
 415
 416                 // --- Cursor Movements ---------------------------------------------
 417
 418         case LFUN_RIGHTSEL:
 419                 sel = true; // fall through...
 420
 421         case LFUN_RIGHT:
 422                 result = mathcursor->right(sel) ? DISPATCHED : FINISHED_RIGHT;
 423                 //lyxerr << "calling scroll 20\n";
 424                 //scroll(bv, 20);
 425                 updateLocal(bv, false);
 426                 // write something to the minibuffer
 427                 //bv->owner()->message(mathcursor->info());
 428                 break;
 429
 430
 431         case LFUN_LEFTSEL:
 432                 sel = true; // fall through
 433
 434         case LFUN_LEFT:
 435                 result = mathcursor->left(sel) ? DISPATCHED : FINISHED;
 436                 updateLocal(bv, false);
 437                 break;
 438
 439
 440         case LFUN_UPSEL:
 441                 sel = true;
 442
 443         case LFUN_UP:
 444                 result = mathcursor->up(sel) ? DISPATCHED : FINISHED_UP;
 445                 updateLocal(bv, false);
 446                 break;
 447
 448
 449         case LFUN_DOWNSEL:
 450                 sel = true;
 451
 452         case LFUN_DOWN:
 453                 result = mathcursor->down(sel) ? DISPATCHED : FINISHED_DOWN;
 454                 updateLocal(bv, false);
 455                 break;
 456
 457         case LFUN_HOMESEL:
 458                 sel = true;
 459
 460         case LFUN_HOME:
 461                 mathcursor->home(sel);
 462                 updateLocal(bv, false);
 463                 break;
 464
 465         case LFUN_ENDSEL:
 466                 sel = true;
 467
 468         case LFUN_END:
 469                 mathcursor->end(sel);
 470                 updateLocal(bv, false);
 471                 break;
 472
 473         case LFUN_DELETE_LINE_FORWARD:
 474                 bv->lockedInsetStoreUndo(Undo::DELETE);
 475                 mathcursor->delLine();
 476                 updateLocal(bv, true);
 477                 break;
 478
 479         case LFUN_TAB:
 480                 mathcursor->idxNext();
 481                 updateLocal(bv, false);
 482                 break;
 483
 484         case LFUN_SHIFT_TAB:
 485                 mathcursor->idxPrev();
 486                 updateLocal(bv, false);
 487                 break;
 488
 489         case LFUN_TABINSERT:
 490                 bv->lockedInsetStoreUndo(Undo::EDIT);
 491                 mathcursor->splitCell();
 492                 updateLocal(bv, true);
 493                 break;
 494
 495         case LFUN_DELETE_WORD_BACKWARD:
 496         case LFUN_BACKSPACE:
 497                 bv->lockedInsetStoreUndo(Undo::DELETE);
 498                 mathcursor->backspace();
 499                 bv->updateInset(this, true);
 500                 break;
 501
 502         case LFUN_DELETE_WORD_FORWARD:
 503         case LFUN_DELETE:
 504                 bv->lockedInsetStoreUndo(Undo::DELETE);
 505                 mathcursor->erase();
 506                 bv->updateInset(this, true);
 507                 break;
 508
 509         //    case LFUN_GETXY:
 510         //      sprintf(dispatch_buffer, "%d %d",);
 511         //      dispatch_result = dispatch_buffer;
 512         //      break;
 513         case LFUN_SETXY: {
 514                 lyxerr << "LFUN_SETXY broken!\n";
 515                 int x = 0;
 516                 int y = 0;
 517                 istringstream is(arg.c_str());
 518                 is >> x >> y;
 519                 mathcursor->setPos(x, y);
 520                 updateLocal(bv, false);
 521                 break;
 522         }
 523
 524         case LFUN_PASTE:
 525                 if (was_macro)
 526                         mathcursor->macroModeClose();
 527                 bv->lockedInsetStoreUndo(Undo::EDIT);
 528                 mathcursor->selPaste();
 529                 updateLocal(bv, true);
 530                 break;
 531
 532         case LFUN_CUT:
 533                 bv->lockedInsetStoreUndo(Undo::DELETE);
 534                 mathcursor->selCut();
 535                 updateLocal(bv, true);
 536                 break;
 537
 538         case LFUN_COPY:
 539                 mathcursor->selCopy();
 540                 break;
 541
 542         case LFUN_WORDRIGHTSEL:
 543         case LFUN_WORDLEFTSEL:
 544                 break;
 545
 546         // Special casing for superscript in case of LyX handling
 547         // dead-keys:
 548         case LFUN_CIRCUMFLEX:
 549                 if (arg.empty()) {
 550                         // do superscript if LyX handles
 551                         // deadkeys
 552                         bv->lockedInsetStoreUndo(Undo::EDIT);
 553                         mathcursor->script(true);
 554                         updateLocal(bv, true);
 555                 }
 556                 break;
 557         case LFUN_UMLAUT:
 558         case LFUN_ACUTE:
 559         case LFUN_GRAVE:
 560         case LFUN_BREVE:
 561         case LFUN_DOT:
 562         case LFUN_MACRON:
 563         case LFUN_CARON:
 564         case LFUN_TILDE:
 565         case LFUN_CEDILLA:
 566         case LFUN_CIRCLE:
 567         case LFUN_UNDERDOT:
 568         case LFUN_TIE:
 569         case LFUN_OGONEK:
 570         case LFUN_HUNG_UMLAUT:
 571                 break;
 572
 573         //  Math fonts
 574         case LFUN_GREEK_TOGGLE: handleFont(bv, arg, "lyxgreek"); break;
 575         case LFUN_BOLD:         handleFont(bv, arg, "textbf"); break;
 576         case LFUN_SANS:         handleFont(bv, arg, "textsf"); break;
 577         case LFUN_EMPH:         handleFont(bv, arg, "mathcal"); break;
 578         case LFUN_ROMAN:        handleFont(bv, arg, "mathrm"); break;
 579         case LFUN_CODE:         handleFont(bv, arg, "texttt"); break;
 580         case LFUN_FRAK:         handleFont(bv, arg, "mathfrak"); break;
 581         case LFUN_ITAL:         handleFont(bv, arg, "mathit"); break;
 582         case LFUN_NOUN:         handleFont(bv, arg, "mathbb"); break;
 583         case LFUN_DEFAULT:      handleFont(bv, arg, "textnormal"); break;
 584         case LFUN_FREE:         handleFont(bv, arg, "textrm"); break;
 585
 586         case LFUN_GREEK:
 587                 handleFont(bv, arg, "lyxgreek1");
 588                 if (arg.size())
 589                         mathcursor->interpret(arg);
 590                 break;
 591
 592         case LFUN_MATH_MODE:
 593                 if (mathcursor->inMathMode()) {
 594                         handleFont(bv, arg, "textrm");
 595                 } else {
 596                         mathcursor->niceInsert(MathAtom(new MathHullInset(LM_OT_SIMPLE)));
 597                         updateLocal(bv, true);
 598                 }
 599                 //bv->owner()->message(_("math text mode toggled"));
 600                 break;
 601
 602         case LFUN_MATH_LIMITS:
 603                 bv->lockedInsetStoreUndo(Undo::EDIT);
 604                 if (mathcursor->toggleLimits())
 605                         updateLocal(bv, true);
 606                 break;
 607
 608         case LFUN_MATH_SIZE:
 609 #if 0
 610                 if (!arg.empty()) {
 611                         bv->lockedInsetStoreUndo(Undo::EDIT);
 612                         mathcursor->setSize(arg);
 613                         updateLocal(bv, true);
 614                 }
 615 #endif
 616                 break;
 617
 618         case LFUN_INSERT_MATRIX:
 619                 if (!arg.empty()) {
 620                         bv->lockedInsetStoreUndo(Undo::EDIT);
 621                         mathcursor->interpret("matrix " + arg);
 622                         updateLocal(bv, true);
 623                 }
 624                 break;
 625
 626         case LFUN_SUPERSCRIPT:
 627         case LFUN_SUBSCRIPT:
 628         {
 629                 bv->lockedInsetStoreUndo(Undo::EDIT);
 630                 mathcursor->script(action == LFUN_SUPERSCRIPT);
 631                 updateLocal(bv, true);
 632                 break;
 633         }
 634
 635         case LFUN_MATH_DELIM:
 636         {
 637                 //lyxerr << "formulabase::LFUN_MATH_DELIM, arg: '" << arg << "'\n";
 638                 string ls;
 639                 string rs = split(arg, ls, ' ');
 640                 // Reasonable default values
 641                 if (ls.empty())
 642                         ls = '(';
 643                 if (rs.empty())
 644                         rs = ')';
 645
 646                 bv->lockedInsetStoreUndo(Undo::EDIT);
 647                 mathcursor->handleDelim(ls, rs);
 648                 updateLocal(bv, true);
 649                 break;
 650         }
 651
 652         case LFUN_PROTECTEDSPACE:
 653         case LFUN_MATH_SPACE:
 654                 bv->lockedInsetStoreUndo(Undo::EDIT);
 655                 mathcursor->insert(MathAtom(new MathSpaceInset(1)));
 656                 updateLocal(bv, true);
 657                 break;
 658
 659         case LFUN_UNDO:
 660                 bv->owner()->message(_("Invalid action in math mode!"));
 661                 break;
 662
 663
 664         case LFUN_MATH_HALIGN:
 665         case LFUN_MATH_VALIGN:
 666         case LFUN_MATH_ROW_INSERT:
 667         case LFUN_MATH_ROW_DELETE:
 668         case LFUN_MATH_COLUMN_INSERT:
 669         case LFUN_MATH_COLUMN_DELETE:
 670         {
 671                 MathInset::idx_type idx = 0;
 672                 MathGridInset * p = mathcursor ? mathcursor->enclosingGrid(idx) : 0;
 673                 if (p) {
 674                         mathcursor->popToEnclosingGrid();
 675                         bv->lockedInsetStoreUndo(Undo::EDIT);
 676                         char align = arg.size() ? arg[0] : 'c';
 677                         switch (action) {
 678                                 case LFUN_MATH_HALIGN: p->halign(align, p->col(idx)); break;
 679                                 case LFUN_MATH_VALIGN: p->valign(align); break;
 680                                 case LFUN_MATH_ROW_INSERT: p->addRow(p->row(idx)); break;
 681                                 case LFUN_MATH_ROW_DELETE: p->delRow(p->row(idx)); break;
 682                                 case LFUN_MATH_COLUMN_INSERT: p->addFancyCol(p->col(idx)); break;
 683                                 case LFUN_MATH_COLUMN_DELETE: p->delFancyCol(p->col(idx)); break;
 684                                 default: ;
 685                         }
 686                         updateLocal(bv, true);
 687                 }
 688                 break;
 689         }
 690
 691         case LFUN_EXEC_COMMAND:
 692                 result = UNDISPATCHED;
 693                 break;
 694
 695         case LFUN_BREAKPARAGRAPH:
 696         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
 697                 //lyxerr << "LFUN ignored\n";
 698                 break;
 699
 700         case LFUN_INSET_ERT:
 701                 // interpret this as if a backslash was typed
 702                 bv->lockedInsetStoreUndo(Undo::EDIT);
 703                 mathcursor->interpret('\\');
 704                 updateLocal(bv, true);
 705                 break;
 706
 707         case -1:
 708         case LFUN_INSERT_MATH:
 709         case LFUN_SELFINSERT:
 710                 if (!arg.empty()) {
 711                         bv->lockedInsetStoreUndo(Undo::EDIT);
 712                         if (arg.size() == 1)
 713                                 result = mathcursor->interpret(arg[0]) ? DISPATCHED : FINISHED_RIGHT;
 714                         else
 715                                 result = mathcursor->interpret(arg) ? DISPATCHED : FINISHED_RIGHT;
 716                         updateLocal(bv, true);
 717                 }
 718                 break;
 719
 720         case LFUN_MATH_PANEL:
 721                 result = UNDISPATCHED;
 722                 break;
 723
 724         case LFUN_ESCAPE:
 725                 if (mathcursor->selection())
 726                         mathcursor->selClear();
 727                 else
 728                         result = UNDISPATCHED;
 729                 break;
 730
 731         case LFUN_INSET_TOGGLE:
 732                 mathcursor->insetToggle();
 733                 break;
 734
 735         default:
 736                 result = UNDISPATCHED;
 737         }
 738
 739         mathcursor->normalize();
 740         mathcursor->touch();
 741
 742         lyx::Assert(mathcursor);
 743
 744         if (mathcursor->selection() || was_selection)
 745                 toggleInsetSelection(bv);
 746
 747         if (result == DISPATCHED || result == DISPATCHED_NOUPDATE ||
 748             result == UNDISPATCHED)
 749                 showInsetCursor(bv);
 750         else
 751                 bv->unlockInset(this);
 752
 753         revealCodes(bv);
 754
 755         return result;  // original version
 756 }
 757
 758
 759 void InsetFormulaBase::revealCodes(BufferView * bv) const
 760 {
 761         if (!mathcursor)
 762                 return;
 763         bv->owner()->message(mathcursor->info());
 764
 765 #if 0
 766         // write something to the minibuffer
 767         // translate to latex
 768         mathcursor->markInsert();
 769         ostringstream os;
 770         write(NULL, os);
 771         string str = os.str();
 772         mathcursor->markErase();
 773         string::size_type pos = 0;
 774         string res;
 775         for (string::iterator it = str.begin(); it != str.end(); ++it) {
 776                 if (*it == '\n')
 777                         res += ' ';
 778                 else if (*it == '\0') {
 779                         res += "  -X-  ";
 780                         pos = it - str.begin();
 781                 }
 782                 else
 783                         res += *it;
 784         }
 785         if (pos > 30)
 786                 res = res.substr(pos - 30);
 787         if (res.size() > 60)
 788                 res = res.substr(0, 60);
 789         bv->owner()->message(res);
 790 #endif
 791 }
 792
 793
 794 Inset::Code InsetFormulaBase::lyxCode() const
 795 {
 796         return Inset::MATH_CODE;
 797 }
 798
 799
 800 int InsetFormulaBase::ylow() const
 801 {
 802         return yo_ - ascent(view_, font_);
 803 }
 804
 805
 806 int InsetFormulaBase::yhigh() const
 807 {
 808         return yo_ + descent(view_, font_);
 809 }
 810
 811
 812 int InsetFormulaBase::xlow() const
 813 {
 814         return xo_;
 815 }
 816
 817
 818 int InsetFormulaBase::xhigh() const
 819 {
 820         return xo_ + width(view_, font_);
 821 }
 822
 823
 824 /////////////////////////////////////////////////////////////////////
 825
 826
 827 bool InsetFormulaBase::searchForward(BufferView * bv, string const & str,
 828                                      bool, bool)
 829 {
 830 #ifdef WITH_WARNINGS
 831 #warning pretty ugly
 832 #endif
 833         static InsetFormulaBase * lastformula = 0;
 834         static MathIterator current = MathIterator(ibegin(par().nucleus()));
 835         static MathArray ar;
 836         static string laststr;
 837
 838         if (lastformula != this || laststr != str) {
 839                 //lyxerr << "reset lastformula to " << this << "\n";
 840                 lastformula = this;
 841                 laststr = str;
 842                 current = ibegin(par().nucleus());
 843                 ar.clear();
 844                 mathed_parse_cell(ar, str);
 845         } else {
 846                 ++current;
 847         }
 848         //lyxerr << "searching '" << str << "' in " << this << ar << endl;
 849
 850         for (MathIterator it = current; it != iend(par().nucleus()); ++it) {
 851                 if (it.cell().matchpart(ar, it.position().pos_)) {
 852                         mathcursor->setSelection(it.cursor(), ar.size());
 853                         current = it;
 854                         it.jump(ar.size());
 855                         // I guess some of the following can go
 856                         bv->toggleSelection(true);
 857                         hideInsetCursor(bv);
 858                         updateLocal(bv, true);
 859                         showInsetCursor(bv);
 860                         metrics(bv);
 861                         return true;
 862                 }
 863         }
 864
 865         //lyxerr << "not found!\n";
 866         lastformula = 0;
 867         // we have to unlock ourself in this function by default!
 868         // don't ask me why...
 869         bv->unlockInset(this);
 870         return false;
 871 }
 872
 873
 874 bool InsetFormulaBase::searchBackward(BufferView * bv, string const & what,
 875                                       bool a, bool b)
 876 {
 877         lyxerr << "searching backward not implemented in mathed" << endl;
 878         return searchForward(bv, what, a, b);
 879 }
 880
 881
 882 /////////////////////////////////////////////////////////////////////
 883
 884
 885 void mathDispatchCreation(BufferView * bv, string const & arg, bool display)
 886 {
 887         if (bv->available()) {
 888                 // use selection if available..
 889                 //string sel;
 890                 //if (action == LFUN_MATH_IMPORT_SELECTION)
 891                 //      sel = "";
 892                 //else
 893
 894                 string sel = bv->getLyXText()->selectionAsString(bv->buffer(), false);
 895
 896                 InsetFormulaBase * f;
 897                 if (sel.empty()) {
 898                         f = new InsetFormula;
 899                         if (openNewInset(bv, f)) {
 900                                 // don't do that also for LFUN_MATH_MODE unless you want end up with
 901                                 // always changing to mathrm when opening an inlined inset
 902                                 // -- I really hate "LyXfunc overloading"...
 903                                 if (display)
 904                                         f->localDispatch(bv, LFUN_MATH_DISPLAY, string());
 905                                 f->localDispatch(bv, LFUN_INSERT_MATH, arg);
 906                         }
 907                 } else {
 908                         // create a macro if we see "\\newcommand" somewhere, and an ordinary
 909                         // formula otherwise
 910                         if (sel.find("\\newcommand") == string::npos &&
 911                                   sel.find("\\def") == string::npos)
 912                         {
 913                                 f = new InsetFormula(sel);
 914                         } else {
 915                                 string name;
 916                                 if (!mathed_parse_macro(name, sel))
 917                                         return;
 918                                 f = new InsetFormulaMacro(sel);
 919                         }
 920                         bv->getLyXText()->cutSelection(bv);
 921                         openNewInset(bv, f);
 922                 }
 923         }
 924         bv->owner()->getLyXFunc()->setMessage(N_("Math editor mode"));
 925 }
 926
 927
 928 void mathDispatchMathDisplay(BufferView * bv, string const & arg)
 929 {
 930         mathDispatchCreation(bv, arg, true);
 931 }
 932
 933
 934 void mathDispatchMathMode(BufferView * bv, string const & arg)
 935 {
 936         mathDispatchCreation(bv, arg, false);
 937 }
 938
 939
 940 void mathDispatchMathImportSelection(BufferView * bv, string const & arg)
 941 {
 942         mathDispatchCreation(bv, arg, true);
 943 }
 944
 945
 946 void mathDispatchMathMacro(BufferView * bv, string const & arg)
 947 {
 948         if (bv->available()) {
 949                 if (arg.empty())
 950                         bv->owner()->getLyXFunc()->setErrorMessage(N_("Missing argument"));
 951                 else {
 952                         string s = arg;
 953                         string const s1 = token(s, ' ', 1);
 954                         int const na = s1.empty() ? 0 : lyx::atoi(s1);
 955                         openNewInset(bv, new InsetFormulaMacro(token(s, ' ', 0), na));
 956                 }
 957         }
 958 }
 959
 960
 961 void mathDispatchMathDelim(BufferView * bv, string const & arg)
 962 {
 963         if (bv->available()) {
 964                 if (openNewInset(bv, new InsetFormula))
 965                         bv->theLockingInset()->localDispatch(bv, LFUN_MATH_DELIM, arg);
 966         }
 967 }
 968
 969
 970 void mathDispatchInsertMatrix(BufferView * bv, string const & arg)
 971 {
 972         if (bv->available()) {
 973                 if (openNewInset(bv, new InsetFormula))
 974                         bv->theLockingInset()->localDispatch(bv, LFUN_INSERT_MATRIX, arg);
 975         }
 976 }
 977
 978
 979 void mathDispatchInsertMath(BufferView * bv, string const & arg)
 980 {
 981         if (bv->available()) {
 982                 if (arg.size() && arg[0] == '\\') {
 983                         InsetFormula * f = new InsetFormula(arg);
 984                         if (!bv->insertInset(f))
 985                                 delete f;
 986                         else if (!mathcursor) // hotfix
 987                                 bv->getLyXText()->cursorRight(bv);
 988                 } else {
 989                         mathDispatchMathMode(bv, arg);
 990                 }
 991         }
 992 }
 993
 994
 995 void mathDispatchGreek(BufferView * bv, string const & arg)
 996 {
 997         if (bv->available()) {
 998                 InsetFormula * f = new InsetFormula;
 999                 if (openNewInset(bv, f)) {
1000                         bv->theLockingInset()->localDispatch(bv, LFUN_GREEK, arg);
1001                         bv->unlockInset(f);
1002                 }
1003         }
1004 }
1005
1006
1007 void mathDispatch(BufferView *, kb_action, string const &)
1008 {}