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_deliminset.h"
  44 #include "math_cursor.h"
  45 #include "math_factory.h"
  46 #include "math_fontinset.h"
  47 #include "math_hullinset.h"
  48 #include "math_iterator.h"
  49 #include "math_macrotable.h"
  50 #include "math_parser.h"
  51 #include "math_pos.h"
  52 #include "math_spaceinset.h"
  53 #include "undo_funcs.h"
  54 #include "textpainter.h"
  55 #include "frontends/Dialogs.h"
  56 #include "intl.h"
  57 #include "insets/insetcommandparams.h"
  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, true);
  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         initMath();
  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(createMathInset(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.style = LM_ST_TEXT;
 159         mi.base.font  = font_;
 160         mi.base.font.setColor(LColor::math);
 161         par()->metrics(mi);
 162 }
 163
 164
 165 string const InsetFormulaBase::editMessage() const
 166 {
 167         return _("Math editor mode");
 168 }
 169
 170
 171 void InsetFormulaBase::edit(BufferView * bv, int x, int y, mouse_button::state)
 172 {
 173         if (!bv->lockInset(this))
 174                 lyxerr[Debug::MATHED] << "Cannot lock inset!!!" << endl;
 175         releaseMathCursor(bv);
 176         mathcursor = new MathCursor(this, true);
 177         metrics(bv);
 178         mathcursor->setPos(x, y);
 179         //lyxerr << "setting pos to " << x << "," << y << "\n";
 180
 181         // if that is removed, we won't get the magenta box when entering an
 182         // inset for the first time
 183         bv->updateInset(this, false);
 184 }
 185
 186
 187 void InsetFormulaBase::edit(BufferView * bv, bool front)
 188 {
 189         if (!bv->lockInset(this))
 190                 lyxerr << "Cannot lock math inset in edit call!\n";
 191         releaseMathCursor(bv);
 192         mathcursor = new MathCursor(this, front);
 193         metrics(bv);
 194         bv->updateInset(this, false);
 195 }
 196
 197
 198 void InsetFormulaBase::insetUnlock(BufferView * bv)
 199 {
 200         if (mathcursor) {
 201                 if (mathcursor->inMacroMode()) {
 202                         mathcursor->macroModeClose();
 203                         updateLocal(bv, true);
 204                 }
 205                 releaseMathCursor(bv);
 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         //lyxerr << "toggleInsetCursor: " << isCursorVisible() << "\n";
 224         if (isCursorVisible())
 225                 hideInsetCursor(bv);
 226         else
 227                 showInsetCursor(bv);
 228 }
 229
 230
 231 void InsetFormulaBase::showInsetCursor(BufferView * bv, bool)
 232 {
 233         if (isCursorVisible())
 234                 return;
 235         fitInsetCursor(bv);
 236         int x, y, asc, des;
 237         getCursorPos(bv, x, y);
 238         math_font_max_dim(font_, asc, des);
 239         bv->showLockedInsetCursor(x, y, asc, des);
 240         setCursorVisible(true);
 241         //lyxerr << "showInsetCursor: " << x << " " << y << "\n";
 242 }
 243
 244
 245 void InsetFormulaBase::hideInsetCursor(BufferView * bv)
 246 {
 247         if (!isCursorVisible())
 248                 return;
 249         bv->hideLockedInsetCursor();
 250         setCursorVisible(false);
 251         //lyxerr << "hideInsetCursor: \n";
 252 }
 253
 254
 255 void InsetFormulaBase::fitInsetCursor(BufferView * bv) const
 256 {
 257         if (!mathcursor)
 258                 return;
 259         int x, y, asc, des;
 260         math_font_max_dim(font_, asc, des);
 261         getCursorPos(bv, x, y);
 262         //y += yo_;
 263         //lyxerr << "fitInsetCursor: x: " << x << " y: " << y << " yo: " << yo_ << "\n";
 264         bv->fitLockedInsetCursor(x, y, asc, des);
 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         if (mathcursor)
 285                 bv->fitCursor();
 286         bv->updateInset(this, dirty);
 287 }
 288
 289
 290 bool InsetFormulaBase::insetButtonRelease(BufferView * bv,
 291         int /*x*/, int /*y*/, mouse_button::state button)
 292 {
 293         if (!mathcursor)
 294                 return false;
 295
 296         //lyxerr << "insetButtonRelease: " << x << " " << y << "\n";
 297         hideInsetCursor(bv);
 298         showInsetCursor(bv);
 299         bv->updateInset(this, false);
 300
 301         if (button == mouse_button::button3) {
 302                 // try to dispatch to enclosed insets first
 303                 if (mathcursor->dispatch("mouse-3-release"))
 304                         return true;
 305
 306                 // launch math panel for right mouse button
 307                 bv->owner()->getDialogs()->showMathPanel();
 308                 return true;
 309         }
 310
 311         if (button == mouse_button::button1) {
 312                 // try to dispatch to enclosed insets first
 313                 if (mathcursor->dispatch("mouse-1-release"))
 314                         return true;
 315
 316                 // try to set the cursor
 317                 //delete mathcursor;
 318                 //mathcursor = new MathCursor(this, x == 0);
 319                 //metrics(bv);
 320                 //mathcursor->setPos(x + xo_, y + yo_);
 321                 return true;
 322         }
 323         return false;
 324 }
 325
 326
 327 void InsetFormulaBase::insetButtonPress(BufferView * bv,
 328                                         int x, int y, mouse_button::state button)
 329 {
 330         //lyxerr << "insetButtonPress: "
 331         //      << x << " " << y << " but: " << button << "\n";
 332         //lyxerr << "formula: ";
 333         par()->dump();
 334
 335         releaseMathCursor(bv);
 336         mathcursor = new MathCursor(this, x == 0);
 337
 338         if (button == mouse_button::button1) {
 339                 // just set the cursor here
 340                 lyxerr << "setting cursor\n";
 341                 metrics(bv);
 342                 first_x = x;
 343                 first_y = y;
 344                 mathcursor->selClear();
 345                 mathcursor->setPos(x + xo_, y + yo_);
 346
 347                 if (mathcursor->dispatch("mouse-1-press")) {
 348                         //delete mathcursor;
 349                         return;
 350                 }
 351
 352         }
 353         if (button == mouse_button::button3) {
 354                 if (mathcursor->dispatch("mouse-3-press")) {
 355                         //delete mathcursor;
 356                         return;
 357                 }
 358         }
 359         bv->updateInset(this, false);
 360 }
 361
 362
 363 void InsetFormulaBase::insetMotionNotify(BufferView * bv,
 364         int x, int y, mouse_button::state button)
 365 {
 366         if (!mathcursor)
 367                 return;
 368
 369         if (button == mouse_button::button1)
 370                 if (mathcursor->dispatch("mouse-1-motion"))
 371                         return;
 372
 373         if (button == mouse_button::button3)
 374                 if (mathcursor->dispatch("mouse-3-motion"))
 375                         return;
 376
 377         if (abs(x - first_x) < 2 && abs(y - first_y) < 2) {
 378                 //lyxerr << "insetMotionNotify: ignored\n";
 379                 return;
 380         }
 381         first_x = x;
 382         first_y = y;
 383
 384         if (!mathcursor->selection())
 385                 mathcursor->selStart();
 386
 387         //lyxerr << "insetMotionNotify: " << x + xo_ << ' ' << y + yo_
 388         //      << ' ' << button << "\n";
 389         hideInsetCursor(bv);
 390         mathcursor->setPos(x + xo_, y + yo_);
 391         showInsetCursor(bv);
 392         bv->updateInset(this, false);
 393 }
 394
 395
 396 UpdatableInset::RESULT
 397 InsetFormulaBase::localDispatch(BufferView * bv, kb_action action,
 398                             string const & arg)
 399 {
 400         //lyxerr << "InsetFormulaBase::localDispatch: act: " << action
 401         //      << " arg: '" << arg
 402         //      << "' cursor: " << mathcursor << "\n";
 403
 404         if (!mathcursor)
 405                 return UNDISPATCHED;
 406
 407         RESULT result      = DISPATCHED;
 408         bool sel           = false;
 409         bool was_macro     = mathcursor->inMacroMode();
 410         bool was_selection = mathcursor->selection();
 411
 412         hideInsetCursor(bv);
 413
 414         mathcursor->normalize();
 415         mathcursor->touch();
 416
 417         switch (action) {
 418
 419         case LFUN_WORDRIGHTSEL:
 420         case LFUN_RIGHTSEL:
 421                 sel = true; // fall through...
 422         case LFUN_RIGHT:
 423                 result = mathcursor->right(sel) ? DISPATCHED : FINISHED_RIGHT;
 424                 //lyxerr << "calling scroll 20\n";
 425                 //scroll(bv, 20);
 426                 updateLocal(bv, false);
 427                 // write something to the minibuffer
 428                 //bv->owner()->message(mathcursor->info());
 429                 break;
 430
 431         case LFUN_WORDLEFTSEL:
 432         case LFUN_LEFTSEL:
 433                 sel = true; // fall through
 434         case LFUN_LEFT:
 435                 result = mathcursor->left(sel) ? DISPATCHED : FINISHED;
 436                 updateLocal(bv, false);
 437                 break;
 438
 439         case LFUN_UPSEL:
 440                 sel = true; // fall through
 441         case LFUN_UP:
 442                 result = mathcursor->up(sel) ? DISPATCHED : FINISHED_UP;
 443                 updateLocal(bv, false);
 444                 break;
 445
 446         case LFUN_DOWNSEL:
 447                 sel = true; // fall through
 448         case LFUN_DOWN:
 449                 result = mathcursor->down(sel) ? DISPATCHED : FINISHED_DOWN;
 450                 updateLocal(bv, false);
 451                 break;
 452
 453         case LFUN_HOMESEL:
 454                 sel = true; // fall through
 455         case LFUN_HOME:
 456                 result = mathcursor->home(sel) ? DISPATCHED : FINISHED;
 457                 updateLocal(bv, false);
 458                 break;
 459
 460         case LFUN_ENDSEL:
 461                 sel = true; // fall through
 462         case LFUN_END:
 463                 result = mathcursor->end(sel) ? DISPATCHED : FINISHED_RIGHT;
 464                 updateLocal(bv, false);
 465                 break;
 466
 467         case LFUN_PRIORSEL:
 468         case LFUN_PRIOR:
 469                 result = FINISHED_UP;
 470                 updateLocal(bv, false);
 471                 break;
 472
 473         case LFUN_NEXTSEL:
 474         case LFUN_NEXT:
 475                 result = FINISHED_DOWN;
 476                 updateLocal(bv, false);
 477                 break;
 478
 479         case LFUN_DELETE_LINE_FORWARD:
 480                 bv->lockedInsetStoreUndo(Undo::DELETE);
 481                 mathcursor->delLine();
 482                 updateLocal(bv, true);
 483                 break;
 484
 485         case LFUN_TAB:
 486                 mathcursor->idxNext();
 487                 updateLocal(bv, false);
 488                 break;
 489
 490         case LFUN_SHIFT_TAB:
 491                 mathcursor->idxPrev();
 492                 updateLocal(bv, false);
 493                 break;
 494
 495         case LFUN_TABINSERT:
 496                 bv->lockedInsetStoreUndo(Undo::EDIT);
 497                 mathcursor->splitCell();
 498                 updateLocal(bv, true);
 499                 break;
 500
 501         case LFUN_DELETE_WORD_BACKWARD:
 502         case LFUN_BACKSPACE:
 503                 bv->lockedInsetStoreUndo(Undo::DELETE);
 504                 mathcursor->backspace();
 505                 updateLocal(bv, true);
 506                 break;
 507
 508         case LFUN_DELETE_WORD_FORWARD:
 509         case LFUN_DELETE:
 510                 bv->lockedInsetStoreUndo(Undo::DELETE);
 511                 mathcursor->erase();
 512                 bv->updateInset(this, true);
 513                 break;
 514
 515         //    case LFUN_GETXY:
 516         //      sprintf(dispatch_buffer, "%d %d",);
 517         //      dispatch_result = dispatch_buffer;
 518         //      break;
 519         case LFUN_SETXY: {
 520                 lyxerr << "LFUN_SETXY broken!\n";
 521                 int x = 0;
 522                 int y = 0;
 523                 istringstream is(arg.c_str());
 524                 is >> x >> y;
 525                 mathcursor->setPos(x, y);
 526                 updateLocal(bv, false);
 527                 break;
 528         }
 529
 530         case LFUN_PASTE:
 531                 if (was_macro)
 532                         mathcursor->macroModeClose();
 533                 bv->lockedInsetStoreUndo(Undo::EDIT);
 534                 mathcursor->selPaste();
 535                 updateLocal(bv, true);
 536                 break;
 537
 538         case LFUN_CUT:
 539                 bv->lockedInsetStoreUndo(Undo::DELETE);
 540                 mathcursor->selCut();
 541                 updateLocal(bv, true);
 542                 break;
 543
 544         case LFUN_COPY:
 545                 mathcursor->selCopy();
 546                 break;
 547
 548
 549         // Special casing for superscript in case of LyX handling
 550         // dead-keys:
 551         case LFUN_CIRCUMFLEX:
 552                 if (arg.empty()) {
 553                         // do superscript if LyX handles
 554                         // deadkeys
 555                         bv->lockedInsetStoreUndo(Undo::EDIT);
 556                         mathcursor->script(true);
 557                         updateLocal(bv, true);
 558                 }
 559                 break;
 560
 561         case LFUN_UMLAUT:
 562         case LFUN_ACUTE:
 563         case LFUN_GRAVE:
 564         case LFUN_BREVE:
 565         case LFUN_DOT:
 566         case LFUN_MACRON:
 567         case LFUN_CARON:
 568         case LFUN_TILDE:
 569         case LFUN_CEDILLA:
 570         case LFUN_CIRCLE:
 571         case LFUN_UNDERDOT:
 572         case LFUN_TIE:
 573         case LFUN_OGONEK:
 574         case LFUN_HUNG_UMLAUT:
 575                 break;
 576
 577         //  Math fonts
 578         case LFUN_GREEK_TOGGLE: handleFont(bv, arg, "lyxgreek"); break;
 579         case LFUN_BOLD:         handleFont(bv, arg, "textbf"); break;
 580         case LFUN_SANS:         handleFont(bv, arg, "textsf"); break;
 581         case LFUN_EMPH:         handleFont(bv, arg, "mathcal"); break;
 582         case LFUN_ROMAN:        handleFont(bv, arg, "mathrm"); break;
 583         case LFUN_CODE:         handleFont(bv, arg, "texttt"); break;
 584         case LFUN_FRAK:         handleFont(bv, arg, "mathfrak"); break;
 585         case LFUN_ITAL:         handleFont(bv, arg, "mathit"); break;
 586         case LFUN_NOUN:         handleFont(bv, arg, "mathbb"); break;
 587         case LFUN_DEFAULT:      handleFont(bv, arg, "textnormal"); break;
 588         case LFUN_FREE:         handleFont(bv, arg, "textrm"); break;
 589
 590         case LFUN_GREEK:
 591                 handleFont(bv, arg, "lyxgreek1");
 592                 if (arg.size())
 593                         mathcursor->interpret(arg);
 594                 break;
 595
 596         case LFUN_MATH_MODE:
 597                 if (mathcursor->currentMode()) {
 598                         handleFont(bv, arg, "textrm");
 599                 } else {
 600                         mathcursor->niceInsert(MathAtom(new MathHullInset("simple")));
 601                         updateLocal(bv, true);
 602                 }
 603                 //bv->owner()->message(_("math text mode toggled"));
 604                 break;
 605
 606         case LFUN_MATH_LIMITS:
 607                 bv->lockedInsetStoreUndo(Undo::EDIT);
 608                 if (mathcursor->toggleLimits())
 609                         updateLocal(bv, true);
 610                 break;
 611
 612         case LFUN_MATH_SIZE:
 613 #if 0
 614                 if (!arg.empty()) {
 615                         bv->lockedInsetStoreUndo(Undo::EDIT);
 616                         mathcursor->setSize(arg);
 617                         updateLocal(bv, true);
 618                 }
 619 #endif
 620                 break;
 621
 622         case LFUN_INSERT_MATRIX:
 623                 if (!arg.empty()) {
 624                         bv->lockedInsetStoreUndo(Undo::EDIT);
 625                         mathcursor->interpret("matrix " + arg);
 626                         updateLocal(bv, true);
 627                 }
 628                 break;
 629
 630         case LFUN_SUPERSCRIPT:
 631         case LFUN_SUBSCRIPT:
 632         {
 633                 bv->lockedInsetStoreUndo(Undo::EDIT);
 634                 mathcursor->script(action == LFUN_SUPERSCRIPT);
 635                 updateLocal(bv, true);
 636                 break;
 637         }
 638
 639         case LFUN_MATH_DELIM:
 640         {
 641                 //lyxerr << "formulabase::LFUN_MATH_DELIM, arg: '" << arg << "'\n";
 642                 string ls;
 643                 string rs = split(arg, ls, ' ');
 644                 // Reasonable default values
 645                 if (ls.empty())
 646                         ls = '(';
 647                 if (rs.empty())
 648                         rs = ')';
 649
 650                 bv->lockedInsetStoreUndo(Undo::EDIT);
 651                 mathcursor->handleNest(MathAtom(new MathDelimInset(ls, rs)));
 652                 updateLocal(bv, true);
 653                 break;
 654         }
 655
 656         case LFUN_PROTECTEDSPACE:
 657         case LFUN_MATH_SPACE:
 658                 bv->lockedInsetStoreUndo(Undo::EDIT);
 659                 mathcursor->insert(MathAtom(new MathSpaceInset(",")));
 660                 updateLocal(bv, true);
 661                 break;
 662
 663         case LFUN_UNDO:
 664                 bv->owner()->message(_("Invalid action in math mode!"));
 665                 break;
 666
 667
 668         case LFUN_MATH_HALIGN:
 669         case LFUN_MATH_VALIGN:
 670         case LFUN_MATH_ROW_INSERT:
 671         case LFUN_MATH_ROW_DELETE:
 672         case LFUN_MATH_COLUMN_INSERT:
 673         case LFUN_MATH_COLUMN_DELETE:
 674         {
 675                 MathInset::idx_type idx = 0;
 676                 MathGridInset * p = mathcursor ? mathcursor->enclosingGrid(idx) : 0;
 677                 if (p) {
 678                         mathcursor->popToEnclosingGrid();
 679                         bv->lockedInsetStoreUndo(Undo::EDIT);
 680                         char align = arg.size() ? arg[0] : 'c';
 681                         switch (action) {
 682                                 case LFUN_MATH_HALIGN: p->halign(align, p->col(idx)); break;
 683                                 case LFUN_MATH_VALIGN: p->valign(align); break;
 684                                 case LFUN_MATH_ROW_INSERT: p->addRow(p->row(idx)); break;
 685                                 case LFUN_MATH_ROW_DELETE: p->delRow(p->row(idx)); break;
 686                                 case LFUN_MATH_COLUMN_INSERT: p->addFancyCol(p->col(idx)); break;
 687                                 case LFUN_MATH_COLUMN_DELETE: p->delFancyCol(p->col(idx)); break;
 688                                 default: ;
 689                         }
 690                         updateLocal(bv, true);
 691                 }
 692                 break;
 693         }
 694
 695         case LFUN_EXEC_COMMAND:
 696                 result = UNDISPATCHED;
 697                 break;
 698
 699         case LFUN_BREAKPARAGRAPH:
 700         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
 701                 //lyxerr << "LFUN ignored\n";
 702                 break;
 703
 704         case LFUN_INSET_ERT:
 705                 // interpret this as if a backslash was typed
 706                 bv->lockedInsetStoreUndo(Undo::EDIT);
 707                 mathcursor->interpret('\\');
 708                 updateLocal(bv, true);
 709                 break;
 710
 711         case -1:
 712         case LFUN_INSERT_MATH:
 713         case LFUN_SELFINSERT:
 714                 if (!arg.empty()) {
 715                         bv->lockedInsetStoreUndo(Undo::EDIT);
 716                         if (arg.size() == 1)
 717                                 result = mathcursor->interpret(arg[0]) ? DISPATCHED : FINISHED_RIGHT;
 718                         else
 719                                 result = mathcursor->interpret(arg) ? DISPATCHED : FINISHED_RIGHT;
 720                         updateLocal(bv, true);
 721                 }
 722                 break;
 723
 724         case LFUN_MATH_PANEL:
 725                 result = UNDISPATCHED;
 726                 break;
 727
 728         case LFUN_ESCAPE:
 729                 if (mathcursor->selection())
 730                         mathcursor->selClear();
 731                 else
 732                         result = UNDISPATCHED;
 733                 break;
 734
 735         case LFUN_INSET_TOGGLE:
 736                 mathcursor->insetToggle();
 737                 updateLocal(bv, true);
 738                 break;
 739
 740         case LFUN_REF_INSERT:
 741                 //if (argument.empty()) {
 742                 //      InsetCommandParams p("ref");
 743                 //      owner_->getDialogs()->createRef(p.getAsString());
 744                 //} else {
 745                 //      InsetCommandParams p;
 746                 //      p.setFromString(argument);
 747
 748                 //      InsetRef * inset = new InsetRef(p, *buffer_);
 749                 //      if (!insertInset(inset))
 750                 //              delete inset;
 751                 //      else
 752                 //              updateInset(inset, true);
 753                 //}
 754                 //
 755                 if (arg.empty()) {
 756                         InsetCommandParams p("ref");
 757                         bv->owner()->getDialogs()->createRef(p.getAsString());
 758                 } else {
 759                         //mathcursor->handleNest(new InsetRef2);
 760                         //mathcursor->insert(arg);
 761                         mathcursor->insert(MathAtom(new RefInset(arg)));
 762                 }
 763                 updateLocal(bv, true);
 764                 break;
 765
 766         default:
 767                 result = UNDISPATCHED;
 768         }
 769
 770         mathcursor->normalize();
 771         mathcursor->touch();
 772
 773         lyx::Assert(mathcursor);
 774
 775         if (mathcursor->selection() || was_selection)
 776                 toggleInsetSelection(bv);
 777
 778         if (result == DISPATCHED || result == DISPATCHED_NOUPDATE ||
 779             result == UNDISPATCHED) {
 780                 fitInsetCursor(bv);
 781                 showInsetCursor(bv);
 782                 revealCodes(bv);
 783         } else {
 784                 releaseMathCursor(bv);
 785                 bv->unlockInset(this);
 786         }
 787
 788         return result;  // original version
 789 }
 790
 791
 792 void InsetFormulaBase::revealCodes(BufferView * bv) const
 793 {
 794         if (!mathcursor)
 795                 return;
 796         bv->owner()->message(mathcursor->info());
 797
 798 #if 0
 799         // write something to the minibuffer
 800         // translate to latex
 801         mathcursor->markInsert();
 802         ostringstream os;
 803         write(NULL, os);
 804         string str = os.str();
 805         mathcursor->markErase();
 806         string::size_type pos = 0;
 807         string res;
 808         for (string::iterator it = str.begin(); it != str.end(); ++it) {
 809                 if (*it == '\n')
 810                         res += ' ';
 811                 else if (*it == '\0') {
 812                         res += "  -X-  ";
 813                         pos = it - str.begin();
 814                 }
 815                 else
 816                         res += *it;
 817         }
 818         if (pos > 30)
 819                 res = res.substr(pos - 30);
 820         if (res.size() > 60)
 821                 res = res.substr(0, 60);
 822         bv->owner()->message(res);
 823 #endif
 824 }
 825
 826
 827 Inset::Code InsetFormulaBase::lyxCode() const
 828 {
 829         return Inset::MATH_CODE;
 830 }
 831
 832
 833 int InsetFormulaBase::ylow() const
 834 {
 835         return yo_ - ascent(view_, font_);
 836 }
 837
 838
 839 int InsetFormulaBase::yhigh() const
 840 {
 841         return yo_ + descent(view_, font_);
 842 }
 843
 844
 845 int InsetFormulaBase::xlow() const
 846 {
 847         return xo_;
 848 }
 849
 850
 851 int InsetFormulaBase::xhigh() const
 852 {
 853         return xo_ + width(view_, font_);
 854 }
 855
 856
 857 /////////////////////////////////////////////////////////////////////
 858
 859
 860 bool InsetFormulaBase::searchForward(BufferView * bv, string const & str,
 861                                      bool, bool)
 862 {
 863 #ifdef WITH_WARNINGS
 864 #warning pretty ugly
 865 #endif
 866         static InsetFormulaBase * lastformula = 0;
 867         static MathIterator current = MathIterator(ibegin(par().nucleus()));
 868         static MathArray ar;
 869         static string laststr;
 870
 871         if (lastformula != this || laststr != str) {
 872                 //lyxerr << "reset lastformula to " << this << "\n";
 873                 lastformula = this;
 874                 laststr = str;
 875                 current = ibegin(par().nucleus());
 876                 ar.clear();
 877                 mathed_parse_cell(ar, str);
 878         } else {
 879                 ++current;
 880         }
 881         //lyxerr << "searching '" << str << "' in " << this << ar << endl;
 882
 883         for (MathIterator it = current; it != iend(par().nucleus()); ++it) {
 884                 if (it.cell().matchpart(ar, it.back().pos_)) {
 885                         bv->unlockInset(bv->theLockingInset());
 886                         if (!bv->lockInset(this)) {
 887                                 lyxerr << "Cannot lock inset" << endl;
 888                                 return false;
 889                         }
 890                         delete mathcursor;
 891                         mathcursor = new MathCursor(this, true);
 892                         metrics(bv);
 893                         mathcursor->setSelection(it, ar.size());
 894                         current = it;
 895                         it.jump(ar.size());
 896                         updateLocal(bv, false);
 897                         return true;
 898                 }
 899         }
 900
 901         //lyxerr << "not found!\n";
 902         lastformula = 0;
 903         return false;
 904 }
 905
 906
 907 bool InsetFormulaBase::searchBackward(BufferView * bv, string const & what,
 908                                       bool a, bool b)
 909 {
 910         lyxerr[Debug::MATHED] << "searching backward not implemented in mathed\n";
 911         return searchForward(bv, what, a, b);
 912 }
 913
 914
 915 /////////////////////////////////////////////////////////////////////
 916
 917
 918 void mathDispatchCreation(BufferView * bv, string const & arg, bool display)
 919 {
 920         if (!bv->available())
 921                 return;
 922
 923         // use selection if available..
 924         //string sel;
 925         //if (action == LFUN_MATH_IMPORT_SELECTION)
 926         //      sel = "";
 927         //else
 928
 929         string sel = bv->getLyXText()->selectionAsString(bv->buffer(), false);
 930
 931         if (sel.empty()) {
 932                 InsetFormula * f = new InsetFormula(bv);
 933                 if (openNewInset(bv, f)) {
 934                         f->mutate("simple");
 935                         // don't do that also for LFUN_MATH_MODE unless you want end up with
 936                         // always changing to mathrm when opening an inlined inset
 937                         // -- I really hate "LyXfunc overloading"...
 938                         if (display)
 939                                 f->localDispatch(bv, LFUN_MATH_DISPLAY, string());
 940                         f->localDispatch(bv, LFUN_INSERT_MATH, arg);
 941                 }
 942         } else {
 943                 // create a macro if we see "\\newcommand" somewhere, and an ordinary
 944                 // formula otherwise
 945                 InsetFormulaBase * f;
 946                 if (sel.find("\\newcommand") == string::npos &&
 947                                 sel.find("\\def") == string::npos)
 948                         f = new InsetFormula(sel);
 949                 else
 950                         f = new InsetFormulaMacro(sel);
 951                 bv->getLyXText()->cutSelection(bv);
 952                 openNewInset(bv, f);
 953         }
 954         bv->owner()->getLyXFunc()->setMessage(N_("Math editor mode"));
 955 }
 956
 957
 958 void mathDispatchMathDisplay(BufferView * bv, string const & arg)
 959 {
 960         mathDispatchCreation(bv, arg, true);
 961 }
 962
 963
 964 void mathDispatchMathMode(BufferView * bv, string const & arg)
 965 {
 966         mathDispatchCreation(bv, arg, false);
 967 }
 968
 969
 970 void mathDispatchMathImportSelection(BufferView * bv, string const & arg)
 971 {
 972         mathDispatchCreation(bv, arg, true);
 973 }
 974
 975
 976 void mathDispatchMathMacro(BufferView * bv, string const & arg)
 977 {
 978         if (!bv->available())
 979                 return;
 980         if (arg.empty())
 981                 bv->owner()->getLyXFunc()->setErrorMessage(N_("Missing argument"));
 982         else {
 983                 string s = arg;
 984                 string const s1 = token(s, ' ', 1);
 985                 int const na = s1.empty() ? 0 : lyx::atoi(s1);
 986                 openNewInset(bv, new InsetFormulaMacro(token(s, ' ', 0), na));
 987         }
 988 }
 989
 990
 991 void mathDispatchMathDelim(BufferView * bv, string const & arg)
 992 {
 993         if (!bv->available())
 994                 return;
 995         InsetFormula * f = new InsetFormula(bv);
 996         if (openNewInset(bv, f)) {
 997                 f->mutate("simple");
 998                 bv->theLockingInset()->localDispatch(bv, LFUN_MATH_DELIM, arg);
 999         }
1000 }
1001
1002
1003 void mathDispatchInsertMatrix(BufferView * bv, string const & arg)
1004 {
1005         if (!bv->available())
1006                 return;
1007         InsetFormula * f = new InsetFormula(bv);
1008         if (openNewInset(bv, f)) {
1009                 f->mutate("simple");
1010                 bv->theLockingInset()->localDispatch(bv, LFUN_INSERT_MATRIX, arg);
1011         }
1012 }
1013
1014
1015 void mathDispatchInsertMath(BufferView * bv, string const & arg)
1016 {
1017         if (!bv->available())
1018                 return;
1019         InsetFormula * f = new InsetFormula(bv);
1020         if (openNewInset(bv, f)) {
1021                 f->mutate("simple");
1022     bv->theLockingInset()->localDispatch(bv, LFUN_INSERT_MATH, arg);
1023         }
1024 }
1025
1026
1027 void mathDispatchGreek(BufferView * bv, string const & arg)
1028 {
1029         if (!bv->available())
1030                 return;
1031         InsetFormula * f = new InsetFormula(bv);
1032         if (openNewInset(bv, f)) {
1033                 f->mutate("simple");
1034                 bv->theLockingInset()->localDispatch(bv, LFUN_GREEK, arg);
1035                 bv->unlockInset(f);
1036         }
1037 }
1038
1039
1040 void mathDispatch(BufferView *, kb_action, string const &)
1041 {}
1042
1043
1044 void mathDispatch(BufferView *, string const &)
1045 {}