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 "lyxrc.h"
  28 #include "commandtags.h"
  29 #include "BufferView.h"
  30 #include "lyxtext.h"
  31 #include "lyxfunc.h"
  32 #include "gettext.h"
  33 #include "LaTeXFeatures.h"
  34 #include "debug.h"
  35 #include "math_support.h"
  36 #include "support/lstrings.h"
  37 #include "frontends/LyXView.h"
  38 #include "frontends/font_metrics.h"
  39 #include "frontends/mouse_state.h"
  40 #include "Lsstream.h"
  41 #include "math_arrayinset.h"
  42 #include "math_charinset.h"
  43 #include "math_cursor.h"
  44 #include "math_factory.h"
  45 #include "math_fontinset.h"
  46 #include "math_hullinset.h"
  47 #include "math_iterator.h"
  48 #include "math_macrotable.h"
  49 #include "math_parser.h"
  50 #include "math_pos.h"
  51 #include "math_spaceinset.h"
  52 #include "undo_funcs.h"
  53 #include "textpainter.h"
  54 #include "frontends/Dialogs.h"
  55 #include "intl.h"
  56 #include "../insets/insetcommand.h"
  57
  58 #include "ref_inset.h"
  59
  60 using std::endl;
  61 using std::ostream;
  62 using std::vector;
  63 using std::abs;
  64
  65 MathCursor * mathcursor = 0;
  66
  67
  68 namespace {
  69
  70 // local global
  71 int first_x;
  72 int first_y;
  73
  74
  75
  76 bool openNewInset(BufferView * bv, UpdatableInset * new_inset)
  77 {
  78         if (!bv->insertInset(new_inset)) {
  79                 delete new_inset;
  80                 return false;
  81         }
  82         new_inset->edit(bv, 0, 0, mouse_button::none);
  83         return true;
  84 }
  85
  86
  87 } // namespace anon
  88
  89
  90
  91 InsetFormulaBase::InsetFormulaBase()
  92         : view_(0), font_(), xo_(0), yo_(0)
  93 {
  94         // This is needed as long the math parser is not re-entrant
  95         MathMacroTable::builtinMacros();
  96         //lyxerr << "sizeof MathInset: " << sizeof(MathInset) << "\n";
  97         //lyxerr << "sizeof(MathMetricsInfo): " << sizeof(MathMetricsInfo) << "\n";
  98         //lyxerr << "sizeof(MathCharInset): " << sizeof(MathCharInset) << "\n";
  99         //lyxerr << "sizeof(LyXFont): " << sizeof(LyXFont) << "\n";
 100 }
 101
 102
 103 // simply scrap this function if you want
 104 void InsetFormulaBase::mutateToText()
 105 {
 106 #if 0
 107         // translate to latex
 108         ostringstream os;
 109         latex(NULL, os, false, false);
 110         string str = os.str();
 111
 112         // insert this text
 113         LyXText * lt = view_->getLyXText();
 114         string::const_iterator cit = str.begin();
 115         string::const_iterator end = str.end();
 116         for (; cit != end; ++cit)
 117                 view_->owner()->getIntl()->getTransManager().TranslateAndInsert(*cit, lt);
 118
 119         // remove ourselves
 120         //view_->owner()->getLyXFunc()->dispatch(LFUN_ESCAPE);
 121 #endif
 122 }
 123
 124
 125 void InsetFormulaBase::handleFont
 126         (BufferView * bv, string const & arg, string const & font)
 127 {
 128         bv->lockedInsetStoreUndo(Undo::EDIT);
 129         bool sel = mathcursor->selection();
 130         if (sel)
 131                 updateLocal(bv, true);
 132         mathcursor->handleNest(new MathFontInset(font));
 133         mathcursor->insert(arg);
 134         if (!sel)
 135                 updateLocal(bv, false);
 136 }
 137
 138
 139 // Check if uses AMS macros
 140 void InsetFormulaBase::validate(LaTeXFeatures &) const
 141 {}
 142
 143
 144 void InsetFormulaBase::metrics(BufferView * bv, LyXFont const & f) const
 145 {
 146         font_ = f;
 147         metrics(bv);
 148 }
 149
 150
 151 void InsetFormulaBase::metrics(BufferView * bv) const
 152 {
 153         if (bv)
 154                 view_ = bv;
 155         MathMetricsInfo mi;
 156         mi.view       = view_;
 157         mi.base.style = display() ? LM_ST_DISPLAY : LM_ST_TEXT;
 158         mi.base.font  = font_;
 159         mi.base.font.setColor(LColor::math);
 160         par()->metrics(mi);
 161 }
 162
 163
 164 string const InsetFormulaBase::editMessage() const
 165 {
 166         return _("Math editor mode");
 167 }
 168
 169
 170 void InsetFormulaBase::edit(BufferView * bv, int x, int y, mouse_button::state)
 171 {
 172         if (!bv->lockInset(this))
 173                 lyxerr[Debug::MATHED] << "Cannot lock inset!!!" << endl;
 174         delete mathcursor;
 175         mathcursor = new MathCursor(this, true);
 176         metrics(bv);
 177         mathcursor->setPos(x, y);
 178         //lyxerr << "setting pos to " << x << "," << y << "\n";
 179
 180         // if that is removed, we won't get the magenta box when entering an
 181         // inset for the first time
 182         bv->updateInset(this, false);
 183 }
 184
 185
 186 void InsetFormulaBase::edit(BufferView * bv, bool front)
 187 {
 188         if (!bv->lockInset(this))
 189                 lyxerr[Debug::MATHED] << "Cannot lock inset!!!" << endl;
 190         delete mathcursor;
 191         mathcursor = new MathCursor(this, front);
 192         metrics(bv);
 193         bv->updateInset(this, false);
 194 }
 195
 196
 197 void InsetFormulaBase::insetUnlock(BufferView * bv)
 198 {
 199         if (mathcursor) {
 200                 if (mathcursor->inMacroMode()) {
 201                         mathcursor->macroModeClose();
 202                         updateLocal(bv, true);
 203                 }
 204                 delete mathcursor;
 205                 mathcursor = 0;
 206         }
 207         bv->updateInset(this, false);
 208 }
 209
 210
 211 void InsetFormulaBase::getCursorPos(BufferView * bv, int & x, int & y) const
 212 {
 213         metrics(bv);
 214         mathcursor->getPos(x, y);
 215         //x -= xo_;
 216         y -= yo_;
 217         //lyxerr << "getCursorPos: " << x << " " << y << "\n";
 218 }
 219
 220
 221 void InsetFormulaBase::toggleInsetCursor(BufferView * bv)
 222 {
 223         if (!mathcursor)
 224                 return;
 225
 226         if (isCursorVisible())
 227                 bv->hideLockedInsetCursor();
 228         else {
 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->showLockedInsetCursor(x, y, asc, des);
 238                 //lyxerr << "toggleInsetCursor: " << x << " " << y << "\n";
 239         }
 240
 241         toggleCursorVisible();
 242 }
 243
 244
 245 void InsetFormulaBase::showInsetCursor(BufferView * bv, bool)
 246 {
 247         if (isCursorVisible())
 248                 return;
 249         if (mathcursor) {
 250                 metrics(bv);
 251                 int x;
 252                 int y;
 253                 mathcursor->getPos(x, y);
 254                 y -= yo_;
 255                 int asc = 0;
 256                 int des = 0;
 257                 math_font_max_dim(font_, asc, des);
 258                 bv->fitLockedInsetCursor(x, y, asc, des);
 259                 //lyxerr << "showInsetCursor: x: " << x << " y: " << y << " yo: " << yo_ << "\n";
 260         }
 261         toggleInsetCursor(bv);
 262 }
 263
 264
 265 void InsetFormulaBase::hideInsetCursor(BufferView * bv)
 266 {
 267         if (isCursorVisible())
 268                 toggleInsetCursor(bv);
 269 }
 270
 271
 272 void InsetFormulaBase::fitInsetCursor(BufferView * bv) const
 273 {
 274         if (!mathcursor)
 275                 return;
 276
 277         int const asc = font_metrics::maxAscent(font_);
 278         int const desc = font_metrics::maxDescent(font_);
 279         int x, y;
 280
 281         getCursorPos(bv, x, y);
 282         bv->fitLockedInsetCursor(x, y, asc, desc);
 283 }
 284
 285
 286 void InsetFormulaBase::toggleInsetSelection(BufferView * bv)
 287 {
 288         if (mathcursor)
 289                 bv->updateInset(this, false);
 290 }
 291
 292
 293 vector<string> const InsetFormulaBase::getLabelList() const
 294 {
 295   return vector<string>();
 296 }
 297
 298
 299 void InsetFormulaBase::updateLocal(BufferView * bv, bool dirty)
 300 {
 301         metrics(bv);
 302         if (mathcursor)
 303                 bv->fitCursor();
 304         bv->updateInset(this, dirty);
 305 }
 306
 307
 308 bool InsetFormulaBase::insetButtonRelease(BufferView * bv,
 309         int /*x*/, int /*y*/, mouse_button::state button)
 310 {
 311         //lyxerr << "insetButtonRelease: " << x << " " << y << "\n";
 312
 313         if (!mathcursor)
 314                 return false;
 315         hideInsetCursor(bv);
 316         showInsetCursor(bv);
 317         bv->updateInset(this, false);
 318
 319         if (button == mouse_button::button3) {
 320                 // try to dispatch to enclosed insets first
 321                 if (mathcursor->dispatch("mouse 3"))
 322                         return true;
 323
 324                 // launch math panel for right mouse button
 325                 bv->owner()->getDialogs()->showMathPanel();
 326                 return true;
 327         }
 328         return false;
 329 }
 330
 331
 332 void InsetFormulaBase::insetButtonPress(BufferView * bv,
 333                                         int x, int y, mouse_button::state button)
 334 {
 335         //lyxerr << "insetButtonPress: "
 336         //      << x << " " << y << " but: " << button << "\n";
 337 #if 0
 338         switch (button) {
 339                 default:
 340                 case 1:
 341                         // left click
 342                         delete mathcursor;
 343                         mathcursor = new MathCursor(this, x == 0);
 344                         metrics(bv);
 345                         first_x = x;
 346                         first_y = y;
 347                         mathcursor->selClear();
 348                         mathcursor->setPos(x + xo_, y + yo_);
 349                         break;
 350 /*
 351                 case 2:
 352                         lyxerr << "insetButtonPress: 2\n";
 353                         // insert stuff
 354                         if (mathcursor) {
 355                                 bv->lockedInsetStoreUndo(Undo::EDIT);
 356                                 MathArray ar;
 357                                 mathcursor->selGet(ar);
 358                                 mathcursor->setPos(x + xo_, y + yo_);
 359                                 string sel =
 360                                         bv->getLyXText()->selectionAsString(bv->buffer(), false);
 361                                 mathed_parse_cell(ar, sel);
 362                                 mathcursor->insert(ar);
 363                         }
 364                         break;
 365 */
 366                 case 3:
 367                         // launch math panel for right mouse button
 368                         bv->owner()->getDialogs()->showMathPanel();
 369                         break;
 370         }
 371 #else
 372         if (button == mouse_button::button1 || !mathcursor) {
 373                 delete mathcursor;
 374                 mathcursor = new MathCursor(this, x == 0);
 375                 metrics(bv);
 376                 first_x = x;
 377                 first_y = y;
 378                 mathcursor->selClear();
 379                 mathcursor->setPos(x + xo_, y + yo_);
 380         }
 381 #if 0
 382 #warning Never launch a Dialog on "Press" event ONLY on "Release" event!
 383         if (button == 3) {
 384                 // launch math panel for right mouse button
 385                 bv->owner()->getDialogs()->showMathPanel();
 386         }
 387 #endif
 388 #endif
 389         bv->updateInset(this, false);
 390 }
 391
 392
 393 void InsetFormulaBase::insetMotionNotify(BufferView * bv,
 394         int x, int y, mouse_button::state)
 395 {
 396         if (!mathcursor)
 397                 return;
 398
 399         if (abs(x - first_x) < 2 && abs(y - first_y) < 2) {
 400                 //lyxerr << "insetMotionNotify: ignored\n";
 401                 return;
 402         }
 403         first_x = x;
 404         first_y = y;
 405
 406         if (!mathcursor->selection())
 407                 mathcursor->selStart();
 408
 409         //lyxerr << "insetMotionNotify: " << x + xo_ << ' ' << y + yo_
 410         //      << ' ' << button << "\n";
 411         hideInsetCursor(bv);
 412         mathcursor->setPos(x + xo_, y + yo_);
 413         showInsetCursor(bv);
 414         bv->updateInset(this, false);
 415 }
 416
 417
 418 UpdatableInset::RESULT
 419 InsetFormulaBase::localDispatch(BufferView * bv, kb_action action,
 420                             string const & arg)
 421 {
 422         //lyxerr << "InsetFormulaBase::localDispatch: act: " << action
 423         //      << " arg: '" << arg << "' cursor: " << mathcursor << "\n";
 424
 425         if (!mathcursor)
 426                 return UNDISPATCHED;
 427
 428         RESULT result      = DISPATCHED;
 429         bool sel           = false;
 430         bool was_macro     = mathcursor->inMacroMode();
 431         bool was_selection = mathcursor->selection();
 432
 433         hideInsetCursor(bv);
 434
 435         mathcursor->normalize();
 436         mathcursor->touch();
 437
 438         switch (action) {
 439
 440         // --- Cursor Movements ---------------------------------------------
 441
 442         case LFUN_RIGHTSEL:
 443                 sel = true; // fall through...
 444
 445         case LFUN_RIGHT:
 446                 result = mathcursor->right(sel) ? DISPATCHED : FINISHED_RIGHT;
 447                 //lyxerr << "calling scroll 20\n";
 448                 //scroll(bv, 20);
 449                 updateLocal(bv, false);
 450                 // write something to the minibuffer
 451                 //bv->owner()->message(mathcursor->info());
 452                 break;
 453
 454
 455         case LFUN_LEFTSEL:
 456                 sel = true; // fall through
 457
 458         case LFUN_LEFT:
 459                 result = mathcursor->left(sel) ? DISPATCHED : FINISHED;
 460                 updateLocal(bv, false);
 461                 break;
 462
 463
 464         case LFUN_UPSEL:
 465                 sel = true;
 466
 467         case LFUN_UP:
 468                 result = mathcursor->up(sel) ? DISPATCHED : FINISHED_UP;
 469                 updateLocal(bv, false);
 470                 break;
 471
 472
 473         case LFUN_DOWNSEL:
 474                 sel = true;
 475
 476         case LFUN_DOWN:
 477                 result = mathcursor->down(sel) ? DISPATCHED : FINISHED_DOWN;
 478                 updateLocal(bv, false);
 479                 break;
 480
 481         case LFUN_HOMESEL:
 482                 sel = true;
 483
 484         case LFUN_HOME:
 485                 mathcursor->home(sel);
 486                 updateLocal(bv, false);
 487                 break;
 488
 489         case LFUN_ENDSEL:
 490                 sel = true;
 491
 492         case LFUN_END:
 493                 mathcursor->end(sel);
 494                 updateLocal(bv, false);
 495                 break;
 496
 497         case LFUN_DELETE_LINE_FORWARD:
 498                 bv->lockedInsetStoreUndo(Undo::DELETE);
 499                 mathcursor->delLine();
 500                 updateLocal(bv, true);
 501                 break;
 502
 503         case LFUN_TAB:
 504                 mathcursor->idxNext();
 505                 updateLocal(bv, false);
 506                 break;
 507
 508         case LFUN_SHIFT_TAB:
 509                 mathcursor->idxPrev();
 510                 updateLocal(bv, false);
 511                 break;
 512
 513         case LFUN_TABINSERT:
 514                 bv->lockedInsetStoreUndo(Undo::EDIT);
 515                 mathcursor->splitCell();
 516                 updateLocal(bv, true);
 517                 break;
 518
 519         case LFUN_DELETE_WORD_BACKWARD:
 520         case LFUN_BACKSPACE:
 521                 bv->lockedInsetStoreUndo(Undo::DELETE);
 522                 mathcursor->backspace();
 523                 updateLocal(bv, true);
 524                 break;
 525
 526         case LFUN_DELETE_WORD_FORWARD:
 527         case LFUN_DELETE:
 528                 bv->lockedInsetStoreUndo(Undo::DELETE);
 529                 mathcursor->erase();
 530                 bv->updateInset(this, true);
 531                 break;
 532
 533         //    case LFUN_GETXY:
 534         //      sprintf(dispatch_buffer, "%d %d",);
 535         //      dispatch_result = dispatch_buffer;
 536         //      break;
 537         case LFUN_SETXY: {
 538                 lyxerr << "LFUN_SETXY broken!\n";
 539                 int x = 0;
 540                 int y = 0;
 541                 istringstream is(arg.c_str());
 542                 is >> x >> y;
 543                 mathcursor->setPos(x, y);
 544                 updateLocal(bv, false);
 545                 break;
 546         }
 547
 548         case LFUN_PASTE:
 549                 if (was_macro)
 550                         mathcursor->macroModeClose();
 551                 bv->lockedInsetStoreUndo(Undo::EDIT);
 552                 mathcursor->selPaste();
 553                 updateLocal(bv, true);
 554                 break;
 555
 556         case LFUN_CUT:
 557                 bv->lockedInsetStoreUndo(Undo::DELETE);
 558                 mathcursor->selCut();
 559                 updateLocal(bv, true);
 560                 break;
 561
 562         case LFUN_COPY:
 563                 mathcursor->selCopy();
 564                 break;
 565
 566         case LFUN_WORDRIGHTSEL:
 567         case LFUN_WORDLEFTSEL:
 568                 break;
 569
 570         // Special casing for superscript in case of LyX handling
 571         // dead-keys:
 572         case LFUN_CIRCUMFLEX:
 573                 if (arg.empty()) {
 574                         // do superscript if LyX handles
 575                         // deadkeys
 576                         bv->lockedInsetStoreUndo(Undo::EDIT);
 577                         mathcursor->script(true);
 578                         updateLocal(bv, true);
 579                 }
 580                 break;
 581         case LFUN_UMLAUT:
 582         case LFUN_ACUTE:
 583         case LFUN_GRAVE:
 584         case LFUN_BREVE:
 585         case LFUN_DOT:
 586         case LFUN_MACRON:
 587         case LFUN_CARON:
 588         case LFUN_TILDE:
 589         case LFUN_CEDILLA:
 590         case LFUN_CIRCLE:
 591         case LFUN_UNDERDOT:
 592         case LFUN_TIE:
 593         case LFUN_OGONEK:
 594         case LFUN_HUNG_UMLAUT:
 595                 break;
 596
 597         //  Math fonts
 598         case LFUN_GREEK_TOGGLE: handleFont(bv, arg, "lyxgreek"); break;
 599         case LFUN_BOLD:         handleFont(bv, arg, "textbf"); break;
 600         case LFUN_SANS:         handleFont(bv, arg, "textsf"); break;
 601         case LFUN_EMPH:         handleFont(bv, arg, "mathcal"); break;
 602         case LFUN_ROMAN:        handleFont(bv, arg, "mathrm"); break;
 603         case LFUN_CODE:         handleFont(bv, arg, "texttt"); break;
 604         case LFUN_FRAK:         handleFont(bv, arg, "mathfrak"); break;
 605         case LFUN_ITAL:         handleFont(bv, arg, "mathit"); break;
 606         case LFUN_NOUN:         handleFont(bv, arg, "mathbb"); break;
 607         case LFUN_DEFAULT:      handleFont(bv, arg, "textnormal"); break;
 608         case LFUN_FREE:         handleFont(bv, arg, "textrm"); break;
 609
 610         case LFUN_GREEK:
 611                 handleFont(bv, arg, "lyxgreek1");
 612                 if (arg.size())
 613                         mathcursor->interpret(arg);
 614                 break;
 615
 616         case LFUN_MATH_MODE:
 617                 if (mathcursor->inMathMode()) {
 618                         handleFont(bv, arg, "textrm");
 619                 } else {
 620                         mathcursor->niceInsert(MathAtom(new MathHullInset("simple")));
 621                         updateLocal(bv, true);
 622                 }
 623                 //bv->owner()->message(_("math text mode toggled"));
 624                 break;
 625
 626         case LFUN_MATH_LIMITS:
 627                 bv->lockedInsetStoreUndo(Undo::EDIT);
 628                 if (mathcursor->toggleLimits())
 629                         updateLocal(bv, true);
 630                 break;
 631
 632         case LFUN_MATH_SIZE:
 633 #if 0
 634                 if (!arg.empty()) {
 635                         bv->lockedInsetStoreUndo(Undo::EDIT);
 636                         mathcursor->setSize(arg);
 637                         updateLocal(bv, true);
 638                 }
 639 #endif
 640                 break;
 641
 642         case LFUN_INSERT_MATRIX:
 643                 if (!arg.empty()) {
 644                         bv->lockedInsetStoreUndo(Undo::EDIT);
 645                         mathcursor->interpret("matrix " + arg);
 646                         updateLocal(bv, true);
 647                 }
 648                 break;
 649
 650         case LFUN_SUPERSCRIPT:
 651         case LFUN_SUBSCRIPT:
 652         {
 653                 bv->lockedInsetStoreUndo(Undo::EDIT);
 654                 mathcursor->script(action == LFUN_SUPERSCRIPT);
 655                 updateLocal(bv, true);
 656                 break;
 657         }
 658
 659         case LFUN_MATH_DELIM:
 660         {
 661                 //lyxerr << "formulabase::LFUN_MATH_DELIM, arg: '" << arg << "'\n";
 662                 string ls;
 663                 string rs = split(arg, ls, ' ');
 664                 // Reasonable default values
 665                 if (ls.empty())
 666                         ls = '(';
 667                 if (rs.empty())
 668                         rs = ')';
 669
 670                 bv->lockedInsetStoreUndo(Undo::EDIT);
 671                 mathcursor->handleDelim(ls, rs);
 672                 updateLocal(bv, true);
 673                 break;
 674         }
 675
 676         case LFUN_PROTECTEDSPACE:
 677         case LFUN_MATH_SPACE:
 678                 bv->lockedInsetStoreUndo(Undo::EDIT);
 679                 mathcursor->insert(MathAtom(new MathSpaceInset(",")));
 680                 updateLocal(bv, true);
 681                 break;
 682
 683         case LFUN_UNDO:
 684                 bv->owner()->message(_("Invalid action in math mode!"));
 685                 break;
 686
 687
 688         case LFUN_MATH_HALIGN:
 689         case LFUN_MATH_VALIGN:
 690         case LFUN_MATH_ROW_INSERT:
 691         case LFUN_MATH_ROW_DELETE:
 692         case LFUN_MATH_COLUMN_INSERT:
 693         case LFUN_MATH_COLUMN_DELETE:
 694         {
 695                 MathInset::idx_type idx = 0;
 696                 MathGridInset * p = mathcursor ? mathcursor->enclosingGrid(idx) : 0;
 697                 if (p) {
 698                         mathcursor->popToEnclosingGrid();
 699                         bv->lockedInsetStoreUndo(Undo::EDIT);
 700                         char align = arg.size() ? arg[0] : 'c';
 701                         switch (action) {
 702                                 case LFUN_MATH_HALIGN: p->halign(align, p->col(idx)); break;
 703                                 case LFUN_MATH_VALIGN: p->valign(align); break;
 704                                 case LFUN_MATH_ROW_INSERT: p->addRow(p->row(idx)); break;
 705                                 case LFUN_MATH_ROW_DELETE: p->delRow(p->row(idx)); break;
 706                                 case LFUN_MATH_COLUMN_INSERT: p->addFancyCol(p->col(idx)); break;
 707                                 case LFUN_MATH_COLUMN_DELETE: p->delFancyCol(p->col(idx)); break;
 708                                 default: ;
 709                         }
 710                         updateLocal(bv, true);
 711                 }
 712                 break;
 713         }
 714
 715         case LFUN_EXEC_COMMAND:
 716                 result = UNDISPATCHED;
 717                 break;
 718
 719         case LFUN_BREAKPARAGRAPH:
 720         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
 721                 //lyxerr << "LFUN ignored\n";
 722                 break;
 723
 724         case LFUN_INSET_ERT:
 725                 // interpret this as if a backslash was typed
 726                 bv->lockedInsetStoreUndo(Undo::EDIT);
 727                 mathcursor->interpret('\\');
 728                 updateLocal(bv, true);
 729                 break;
 730
 731         case -1:
 732         case LFUN_INSERT_MATH:
 733         case LFUN_SELFINSERT:
 734                 if (!arg.empty()) {
 735                         bv->lockedInsetStoreUndo(Undo::EDIT);
 736                         if (arg.size() == 1)
 737                                 result = mathcursor->interpret(arg[0]) ? DISPATCHED : FINISHED_RIGHT;
 738                         else
 739                                 result = mathcursor->interpret(arg) ? DISPATCHED : FINISHED_RIGHT;
 740                         updateLocal(bv, true);
 741                 }
 742                 break;
 743
 744         case LFUN_MATH_PANEL:
 745                 result = UNDISPATCHED;
 746                 break;
 747
 748         case LFUN_ESCAPE:
 749                 if (mathcursor->selection())
 750                         mathcursor->selClear();
 751                 else
 752                         result = UNDISPATCHED;
 753                 break;
 754
 755         case LFUN_INSET_TOGGLE:
 756                 mathcursor->insetToggle();
 757                 updateLocal(bv, true);
 758                 break;
 759
 760         case LFUN_REF_INSERT:
 761                 //if (argument.empty()) {
 762                 //      InsetCommandParams p("ref");
 763                 //      owner_->getDialogs()->createRef(p.getAsString());
 764                 //} else {
 765                 //      InsetCommandParams p;
 766                 //      p.setFromString(argument);
 767
 768                 //      InsetRef * inset = new InsetRef(p, *buffer_);
 769                 //      if (!insertInset(inset))
 770                 //              delete inset;
 771                 //      else
 772                 //              updateInset(inset, true);
 773                 //}
 774                 //
 775                 if (arg.empty()) {
 776                         InsetCommandParams p("ref");
 777                         bv->owner()->getDialogs()->createRef(p.getAsString());
 778                 } else {
 779                         //mathcursor->handleNest(new RefInset);
 780                         //mathcursor->insert(arg);
 781                         mathcursor->insert(MathAtom(new RefInset(arg)));
 782                 }
 783                 updateLocal(bv, true);
 784                 break;
 785
 786         default:
 787                 result = UNDISPATCHED;
 788         }
 789
 790         mathcursor->normalize();
 791         mathcursor->touch();
 792
 793         lyx::Assert(mathcursor);
 794
 795         if (mathcursor->selection() || was_selection)
 796                 toggleInsetSelection(bv);
 797
 798         if (result == DISPATCHED || result == DISPATCHED_NOUPDATE ||
 799             result == UNDISPATCHED)
 800                 showInsetCursor(bv);
 801         else
 802                 bv->unlockInset(this);
 803
 804         revealCodes(bv);
 805
 806         return result;  // original version
 807 }
 808
 809
 810 void InsetFormulaBase::revealCodes(BufferView * bv) const
 811 {
 812         if (!mathcursor)
 813                 return;
 814         bv->owner()->message(mathcursor->info());
 815
 816 #if 0
 817         // write something to the minibuffer
 818         // translate to latex
 819         mathcursor->markInsert();
 820         ostringstream os;
 821         write(NULL, os);
 822         string str = os.str();
 823         mathcursor->markErase();
 824         string::size_type pos = 0;
 825         string res;
 826         for (string::iterator it = str.begin(); it != str.end(); ++it) {
 827                 if (*it == '\n')
 828                         res += ' ';
 829                 else if (*it == '\0') {
 830                         res += "  -X-  ";
 831                         pos = it - str.begin();
 832                 }
 833                 else
 834                         res += *it;
 835         }
 836         if (pos > 30)
 837                 res = res.substr(pos - 30);
 838         if (res.size() > 60)
 839                 res = res.substr(0, 60);
 840         bv->owner()->message(res);
 841 #endif
 842 }
 843
 844
 845 Inset::Code InsetFormulaBase::lyxCode() const
 846 {
 847         return Inset::MATH_CODE;
 848 }
 849
 850
 851 int InsetFormulaBase::ylow() const
 852 {
 853         return yo_ - ascent(view_, font_);
 854 }
 855
 856
 857 int InsetFormulaBase::yhigh() const
 858 {
 859         return yo_ + descent(view_, font_);
 860 }
 861
 862
 863 int InsetFormulaBase::xlow() const
 864 {
 865         return xo_;
 866 }
 867
 868
 869 int InsetFormulaBase::xhigh() const
 870 {
 871         return xo_ + width(view_, font_);
 872 }
 873
 874
 875 /////////////////////////////////////////////////////////////////////
 876
 877
 878 bool InsetFormulaBase::searchForward(BufferView * bv, string const & str,
 879                                      bool, bool)
 880 {
 881 #ifdef WITH_WARNINGS
 882 #warning pretty ugly
 883 #endif
 884         static InsetFormulaBase * lastformula = 0;
 885         static MathIterator current = MathIterator(ibegin(par().nucleus()));
 886         static MathArray ar;
 887         static string laststr;
 888
 889         if (lastformula != this || laststr != str) {
 890                 //lyxerr << "reset lastformula to " << this << "\n";
 891                 lastformula = this;
 892                 laststr = str;
 893                 current = ibegin(par().nucleus());
 894                 ar.clear();
 895                 mathed_parse_cell(ar, str);
 896         } else {
 897                 ++current;
 898         }
 899         //lyxerr << "searching '" << str << "' in " << this << ar << endl;
 900
 901         for (MathIterator it = current; it != iend(par().nucleus()); ++it) {
 902                 if (it.cell().matchpart(ar, it.position().pos_)) {
 903                         bv->unlockInset(bv->theLockingInset());
 904                         if (!bv->lockInset(this)) {
 905                                 lyxerr << "Cannot lock inset" << endl;
 906                                 return false;
 907                         }
 908                         delete mathcursor;
 909                         mathcursor = new MathCursor(this, true);
 910                         metrics(bv);
 911                         mathcursor->setSelection(it.cursor(), ar.size());
 912                         current = it;
 913                         it.jump(ar.size());
 914                         updateLocal(bv, false);
 915                         return true;
 916                 }
 917         }
 918
 919         //lyxerr << "not found!\n";
 920         lastformula = 0;
 921         return false;
 922 }
 923
 924
 925 bool InsetFormulaBase::searchBackward(BufferView * bv, string const & what,
 926                                       bool a, bool b)
 927 {
 928         lyxerr << "searching backward not implemented in mathed" << endl;
 929         return searchForward(bv, what, a, b);
 930 }
 931
 932
 933 /////////////////////////////////////////////////////////////////////
 934
 935
 936 void mathDispatchCreation(BufferView * bv, string const & arg, bool display)
 937 {
 938         if (bv->available()) {
 939                 // use selection if available..
 940                 //string sel;
 941                 //if (action == LFUN_MATH_IMPORT_SELECTION)
 942                 //      sel = "";
 943                 //else
 944
 945                 string sel = bv->getLyXText()->selectionAsString(bv->buffer(), false);
 946
 947                 if (sel.empty()) {
 948                         InsetFormula * f = new InsetFormula;
 949                         f->mutate("simple");
 950                         if (openNewInset(bv, f)) {
 951                                 // don't do that also for LFUN_MATH_MODE unless you want end up with
 952                                 // always changing to mathrm when opening an inlined inset
 953                                 // -- I really hate "LyXfunc overloading"...
 954                                 if (display)
 955                                         f->localDispatch(bv, LFUN_MATH_DISPLAY, string());
 956                                 f->localDispatch(bv, LFUN_INSERT_MATH, arg);
 957                         }
 958                 } else {
 959                         // create a macro if we see "\\newcommand" somewhere, and an ordinary
 960                         // formula otherwise
 961                         if (sel.find("\\newcommand") == string::npos &&
 962                                   sel.find("\\def") == string::npos)
 963                         {
 964                                 InsetFormula * f = new InsetFormula;
 965                                 f->mutate("simple");
 966                                 f->read(sel);
 967                                 bv->getLyXText()->cutSelection(bv);
 968                                 openNewInset(bv, f);
 969                         } else {
 970                                 string name;
 971                                 if (!mathed_parse_macro(name, sel))
 972                                         return;
 973                                 InsetFormulaMacro * f = new InsetFormulaMacro(sel);
 974                                 bv->getLyXText()->cutSelection(bv);
 975                                 openNewInset(bv, f);
 976                         }
 977                 }
 978         }
 979         bv->owner()->getLyXFunc()->setMessage(N_("Math editor mode"));
 980 }
 981
 982
 983 void mathDispatchMathDisplay(BufferView * bv, string const & arg)
 984 {
 985         mathDispatchCreation(bv, arg, true);
 986 }
 987
 988
 989 void mathDispatchMathMode(BufferView * bv, string const & arg)
 990 {
 991         mathDispatchCreation(bv, arg, false);
 992 }
 993
 994
 995 void mathDispatchMathImportSelection(BufferView * bv, string const & arg)
 996 {
 997         mathDispatchCreation(bv, arg, true);
 998 }
 999
1000
1001 void mathDispatchMathMacro(BufferView * bv, string const & arg)
1002 {
1003         if (bv->available()) {
1004                 if (arg.empty())
1005                         bv->owner()->getLyXFunc()->setErrorMessage(N_("Missing argument"));
1006                 else {
1007                         string s = arg;
1008                         string const s1 = token(s, ' ', 1);
1009                         int const na = s1.empty() ? 0 : lyx::atoi(s1);
1010                         openNewInset(bv, new InsetFormulaMacro(token(s, ' ', 0), na));
1011                 }
1012         }
1013 }
1014
1015
1016 void mathDispatchMathDelim(BufferView * bv, string const & arg)
1017 {
1018         if (bv->available()) {
1019                 InsetFormula * f = new InsetFormula;
1020                 f->mutate("simple");
1021                 if (openNewInset(bv, new InsetFormula))
1022                         bv->theLockingInset()->localDispatch(bv, LFUN_MATH_DELIM, arg);
1023         }
1024 }
1025
1026
1027 void mathDispatchInsertMatrix(BufferView * bv, string const & arg)
1028 {
1029         if (bv->available()) {
1030                 InsetFormula * f = new InsetFormula;
1031                 f->mutate("simple");
1032                 if (openNewInset(bv, new InsetFormula))
1033                         bv->theLockingInset()->localDispatch(bv, LFUN_INSERT_MATRIX, arg);
1034         }
1035 }
1036
1037
1038 void mathDispatchInsertMath(BufferView * bv, string const & arg)
1039 {
1040         if (bv->available()) {
1041                 if (arg.size() && arg[0] == '\\') {
1042                         InsetFormula * f = new InsetFormula;
1043                         f->read(arg);
1044                         if (!bv->insertInset(f))
1045                                 delete f;
1046                         else if (!mathcursor) // hotfix
1047                                 bv->getLyXText()->cursorRight(bv);
1048                 } else {
1049                         mathDispatchMathMode(bv, arg);
1050                 }
1051         }
1052 }
1053
1054
1055 void mathDispatchGreek(BufferView * bv, string const & arg)
1056 {
1057         if (bv->available()) {
1058                 InsetFormula * f = new InsetFormula;
1059                 f->mutate("simple");
1060                 if (openNewInset(bv, f)) {
1061                         bv->theLockingInset()->localDispatch(bv, LFUN_GREEK, arg);
1062                         bv->unlockInset(f);
1063                 }
1064         }
1065 }
1066
1067
1068 void mathDispatch(BufferView *, kb_action, string const &)
1069 {}
1070
1071
1072 void mathDispatch(BufferView *, string const &)
1073 {}