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