src/mathed/formulabase.C

   1 /**
   2  * \file formulabase.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Alejandro Aguilar Sierra
   7  * \author André Pönitz
   8  *
   9  * Full author contact details are available in file CREDITS.
  10  */
  11
  12 #include <config.h>
  13
  14 #include "formulabase.h"
  15 #include "formula.h"
  16 #include "formulamacro.h"
  17 #include "math_support.h"
  18 #include "math_arrayinset.h"
  19 #include "math_deliminset.h"
  20 #include "math_cursor.h"
  21 #include "math_factory.h"
  22 #include "math_hullinset.h"
  23 #include "math_parser.h"
  24 #include "math_spaceinset.h"
  25 #include "ref_inset.h"
  26
  27 #include "BufferView.h"
  28 #include "bufferview_funcs.h"
  29 #include "dispatchresult.h"
  30 #include "debug.h"
  31 #include "funcrequest.h"
  32 #include "gettext.h"
  33 #include "LColor.h"
  34 #include "lyxtext.h"
  35 #include "undo.h"
  36
  37 #include "frontends/LyXView.h"
  38 #include "frontends/Dialogs.h"
  39
  40 #include "support/std_sstream.h"
  41 #include "support/lstrings.h"
  42 #include "support/lyxlib.h"
  43
  44 using lyx::support::atoi;
  45 using lyx::support::split;
  46 using lyx::support::token;
  47
  48 using std::string;
  49 using std::abs;
  50 using std::endl;
  51 using std::max;
  52
  53 using std::istringstream;
  54
  55
  56 MathCursor * mathcursor = 0;
  57
  58 namespace {
  59
  60 // local global
  61 int first_x;
  62 int first_y;
  63
  64 bool openNewInset(BufferView * bv, UpdatableInset * new_inset)
  65 {
  66         if (!bv->insertInset(new_inset)) {
  67                 delete new_inset;
  68                 return false;
  69         }
  70         new_inset->edit(bv, true);
  71         return true;
  72 }
  73
  74
  75 } // namespace anon
  76
  77
  78
  79 InsetFormulaBase::InsetFormulaBase()
  80         : xo_(0), yo_(0)
  81 {
  82         // This is needed as long the math parser is not re-entrant
  83         initMath();
  84         //lyxerr << "sizeof MathInset: " << sizeof(MathInset) << endl;
  85         //lyxerr << "sizeof MetricsInfo: " << sizeof(MetricsInfo) << endl;
  86         //lyxerr << "sizeof MathCharInset: " << sizeof(MathCharInset) << endl;
  87         //lyxerr << "sizeof LyXFont: " << sizeof(LyXFont) << endl;
  88 }
  89
  90
  91 // simply scrap this function if you want
  92 void InsetFormulaBase::mutateToText()
  93 {
  94 #if 0
  95         // translate to latex
  96         ostringstream os;
  97         latex(NULL, os, false, false);
  98         string str = os.str();
  99
 100         // insert this text
 101         LyXText * lt = view_->getLyXText();
 102         string::const_iterator cit = str.begin();
 103         string::const_iterator end = str.end();
 104         for (; cit != end; ++cit)
 105                 view_->owner()->getIntl()->getTransManager().TranslateAndInsert(*cit, lt);
 106
 107         // remove ourselves
 108         //view_->owner()->dispatch(LFUN_ESCAPE);
 109 #endif
 110 }
 111
 112
 113 void InsetFormulaBase::handleFont
 114         (BufferView * bv, string const & arg, string const & font)
 115 {
 116         // this whole function is a hack and won't work for incremental font
 117         // changes...
 118         recordUndo(bv, Undo::ATOMIC);
 119
 120         if (mathcursor->inset()->name() == font)
 121                 mathcursor->handleFont(font);
 122         else {
 123                 mathcursor->handleNest(createMathInset(font));
 124                 mathcursor->insert(arg);
 125         }
 126 }
 127
 128
 129 void InsetFormulaBase::handleFont2(BufferView * bv, string const & arg)
 130 {
 131         recordUndo(bv, Undo::ATOMIC);
 132         LyXFont font;
 133         bool b;
 134         bv_funcs::string2font(arg, font, b);
 135         if (font.color() != LColor::inherit) {
 136                 MathAtom at = createMathInset("color");
 137                 asArray(lcolor.getGUIName(font.color()), at.nucleus()->cell(0));
 138                 mathcursor->handleNest(at, 1);
 139         }
 140 }
 141
 142
 143
 144 void InsetFormulaBase::validate(LaTeXFeatures &) const
 145 {}
 146
 147
 148 string const InsetFormulaBase::editMessage() const
 149 {
 150         return _("Math editor mode");
 151 }
 152
 153
 154 void InsetFormulaBase::insetUnlock(BufferView * bv)
 155 {
 156         if (mathcursor) {
 157                 if (mathcursor->inMacroMode()) {
 158                         mathcursor->macroModeClose();
 159                         bv->updateInset(this);
 160                 }
 161                 releaseMathCursor(bv);
 162         }
 163         if (bv->buffer())
 164                 generatePreview(*bv->buffer());
 165         bv->updateInset(this);
 166 }
 167
 168
 169 void InsetFormulaBase::getCursor(BufferView &, int & x, int & y) const
 170 {
 171         mathcursor->getPos(x, y);
 172 }
 173
 174
 175 void InsetFormulaBase::getCursorPos(BufferView *, int & x, int & y) const
 176 {
 177         // calling metrics here destroys the cached xo,yo positions e.g. in
 178         // MathParboxinset. And it would be too expensive anyway...
 179         //metrics(bv);
 180         if (!mathcursor) {
 181                 lyxerr << "getCursorPos - should not happen";
 182                 x = y = 0;
 183                 return;
 184         }
 185         mathcursor->getPos(x, y);
 186         x = mathcursor->targetX();
 187         x -= xo_;
 188         y -= yo_;
 189         //lyxerr << "getCursorPos: " << x << ' ' << y << endl;
 190 }
 191
 192
 193 void InsetFormulaBase::fitInsetCursor(BufferView * bv) const
 194 {
 195         if (!mathcursor)
 196                 return;
 197         int x, y, asc, des;
 198         asc = 10;
 199         des = 2;
 200         //math_font_max_dim(font_, asc, des);
 201         getCursorPos(bv, x, y);
 202         //y += yo_;
 203         //lyxerr << "fitInsetCursor: x: " << x << " y: " << y << " yo: " << yo_ << endl;
 204         bv->fitLockedInsetCursor(x, y, asc, des);
 205 }
 206
 207
 208 void InsetFormulaBase::toggleInsetSelection(BufferView * bv)
 209 {
 210         if (mathcursor)
 211                 bv->updateInset(this);
 212 }
 213
 214
 215 DispatchResult InsetFormulaBase::lfunMouseRelease(FuncRequest const & cmd)
 216 {
 217         if (!mathcursor)
 218                 return DispatchResult(false);
 219
 220         BufferView * bv = cmd.view();
 221         bv->updateInset(this);
 222         //lyxerr << "lfunMouseRelease: buttons: " << cmd.button() << endl;
 223
 224         if (cmd.button() == mouse_button::button3) {
 225                 // try to dispatch to enclosed insets first
 226                 if (!mathcursor->dispatch(cmd).dispatched()) {
 227                         // launch math panel for right mouse button
 228                         lyxerr << "lfunMouseRelease: undispatched: " << cmd.button() << endl;
 229                         bv->owner()->getDialogs().show("mathpanel");
 230                 }
 231                 return DispatchResult(true, true);
 232         }
 233
 234         if (cmd.button() == mouse_button::button2) {
 235                 MathArray ar;
 236                 asArray(bv->getClipboard(), ar);
 237                 mathcursor->selClear();
 238                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 239                 mathcursor->insert(ar);
 240                 bv->updateInset(this);
 241                 return DispatchResult(true, true);
 242         }
 243
 244         if (cmd.button() == mouse_button::button1) {
 245                 // try to dispatch to enclosed insets first
 246                 mathcursor->dispatch(cmd);
 247                 cmd.view()->stuffClipboard(mathcursor->grabSelection());
 248                 // try to set the cursor
 249                 //delete mathcursor;
 250                 //mathcursor = new MathCursor(this, x == 0);
 251                 //metrics(bv);
 252                 //mathcursor->setPos(x + xo_, y + yo_);
 253                 return DispatchResult(true, true);
 254         }
 255
 256         return DispatchResult(false);
 257 }
 258
 259
 260 DispatchResult InsetFormulaBase::lfunMousePress(FuncRequest const & cmd)
 261 {
 262         BufferView * bv = cmd.view();
 263         //lyxerr << "lfunMousePress: buttons: " << cmd.button() << endl;
 264
 265         if (!mathcursor || mathcursor->formula() != this) {
 266                 lyxerr[Debug::MATHED] << "re-create cursor" << endl;
 267                 releaseMathCursor(bv);
 268                 mathcursor = new MathCursor(this, cmd.x == 0);
 269                 //metrics(bv);
 270                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 271         }
 272
 273         if (cmd.button() == mouse_button::button3) {
 274                 mathcursor->dispatch(cmd);
 275                 return DispatchResult(true, true);
 276         }
 277
 278         if (cmd.button() == mouse_button::button1) {
 279                 first_x = cmd.x;
 280                 first_y = cmd.y;
 281                 mathcursor->selClear();
 282                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 283                 mathcursor->dispatch(cmd);
 284                 return DispatchResult(true, true);
 285         }
 286
 287         bv->updateInset(this);
 288         return DispatchResult(true, true);
 289 }
 290
 291
 292 DispatchResult InsetFormulaBase::lfunMouseMotion(FuncRequest const & cmd)
 293 {
 294         if (!mathcursor)
 295                 return DispatchResult(true, true);
 296
 297         if (mathcursor->dispatch(FuncRequest(cmd)).dispatched())
 298                 return DispatchResult(true, true);
 299
 300         // only select with button 1
 301         if (cmd.button() != mouse_button::button1)
 302                 return DispatchResult(true, true);
 303
 304         if (abs(cmd.x - first_x) < 2 && abs(cmd.y - first_y) < 2)
 305                 return DispatchResult(true, true);
 306
 307         first_x = cmd.x;
 308         first_y = cmd.y;
 309
 310         if (!mathcursor->selection())
 311                 mathcursor->selStart();
 312
 313         BufferView * bv = cmd.view();
 314         mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 315         bv->updateInset(this);
 316         return DispatchResult(true, true);
 317 }
 318
 319
 320 void InsetFormulaBase::edit(BufferView * bv, bool left)
 321 {
 322         lyxerr << "Called FormulaBase::edit" << endl;
 323         if (!bv->lockInset(this))
 324                 lyxerr << "Cannot lock math inset in edit call!" << endl;
 325         releaseMathCursor(bv);
 326         mathcursor = new MathCursor(this, left);
 327         // if that is removed, we won't get the magenta box when entering an
 328         // inset for the first time
 329         bv->updateInset(this);
 330 }
 331
 332
 333 void InsetFormulaBase::edit(BufferView * bv, int x, int y)
 334 {
 335         lyxerr << "Called FormulaBase::EDIT with '" << x << ' ' << y << "'" << endl;
 336         if (!bv->lockInset(this))
 337                 lyxerr << "Cannot lock math inset in edit call!" << endl;
 338         releaseMathCursor(bv);
 339         mathcursor = new MathCursor(this, true);
 340         //metrics(bv);
 341         mathcursor->setPos(x + xo_, y + yo_);
 342         // if that is removed, we won't get the magenta box when entering an
 343         // inset for the first time
 344         bv->updateInset(this);
 345 }
 346
 347
 348 DispatchResult
 349 InsetFormulaBase::priv_dispatch(FuncRequest const & cmd,
 350                                 idx_type &, pos_type &)
 351 {
 352         //lyxerr << "InsetFormulaBase::localDispatch: act: " << cmd.action
 353         //      << " arg: '" << cmd.argument
 354         //      << "' x: '" << cmd.x
 355         //      << " y: '" << cmd.y
 356         //      << "' button: " << cmd.button() << endl;
 357
 358         BufferView * bv = cmd.view();
 359
 360         // delete empty mathbox (LFUN_BACKSPACE and LFUN_DELETE)
 361         bool remove_inset = false;
 362
 363         switch (cmd.action) {
 364                 case LFUN_MOUSE_PRESS:
 365                         //lyxerr << "Mouse single press" << endl;
 366                         return lfunMousePress(cmd);
 367                 case LFUN_MOUSE_MOTION:
 368                         //lyxerr << "Mouse motion" << endl;
 369                         return lfunMouseMotion(cmd);
 370                 case LFUN_MOUSE_RELEASE:
 371                         //lyxerr << "Mouse single release" << endl;
 372                         return lfunMouseRelease(cmd);
 373                 case LFUN_MOUSE_DOUBLE:
 374                         //lyxerr << "Mouse double" << endl;
 375                         return dispatch(FuncRequest(LFUN_WORDSEL));
 376                 default:
 377                         break;
 378         }
 379
 380         if (!mathcursor)
 381                 return DispatchResult(false);
 382
 383         string argument    = cmd.argument;
 384         DispatchResult result(true);
 385         bool sel           = false;
 386         bool was_macro     = mathcursor->inMacroMode();
 387         bool was_selection = mathcursor->selection();
 388
 389         mathcursor->normalize();
 390         mathcursor->touch();
 391
 392         switch (cmd.action) {
 393
 394         case LFUN_MATH_MUTATE:
 395         case LFUN_MATH_DISPLAY:
 396         case LFUN_MATH_NUMBER:
 397         case LFUN_MATH_NONUMBER:
 398         case LFUN_CELL_SPLIT:
 399         case LFUN_BREAKLINE:
 400         case LFUN_DELETE_LINE_FORWARD:
 401         case LFUN_INSERT_LABEL:
 402         case LFUN_MATH_EXTERN:
 403         case LFUN_TABULAR_FEATURE:
 404         case LFUN_PASTESELECTION:
 405         case LFUN_MATH_LIMITS:
 406                 recordUndo(bv, Undo::ATOMIC);
 407                 mathcursor->dispatch(cmd);
 408                 break;
 409
 410         case LFUN_RIGHTSEL:
 411                 sel = true; // fall through...
 412         case LFUN_RIGHT:
 413                 result = mathcursor->right(sel) ? DispatchResult(true, true) : DispatchResult(false, FINISHED_RIGHT);
 414                 //lyxerr << "calling scroll 20" << endl;
 415                 //scroll(bv, 20);
 416                 // write something to the minibuffer
 417                 //bv->owner()->message(mathcursor->info());
 418                 break;
 419
 420         case LFUN_LEFTSEL:
 421                 sel = true; // fall through
 422         case LFUN_LEFT:
 423                 result = mathcursor->left(sel) ? DispatchResult(true, true) : DispatchResult(true, FINISHED);
 424                 break;
 425
 426         case LFUN_UPSEL:
 427                 sel = true; // fall through
 428         case LFUN_UP:
 429                 result = mathcursor->up(sel) ? DispatchResult(true, true) : DispatchResult(false, FINISHED_UP);
 430                 break;
 431
 432         case LFUN_DOWNSEL:
 433                 sel = true; // fall through
 434         case LFUN_DOWN:
 435                 result = mathcursor->down(sel) ? DispatchResult(true, true) : DispatchResult(false, FINISHED_DOWN);
 436                 break;
 437
 438         case LFUN_WORDSEL:
 439                 mathcursor->home(false);
 440                 mathcursor->end(true);
 441                 break;
 442
 443         case LFUN_UP_PARAGRAPHSEL:
 444         case LFUN_UP_PARAGRAPH:
 445         case LFUN_DOWN_PARAGRAPHSEL:
 446         case LFUN_DOWN_PARAGRAPH:
 447                 result = DispatchResult(true, FINISHED);
 448                 break;
 449
 450         case LFUN_HOMESEL:
 451         case LFUN_WORDLEFTSEL:
 452                 sel = true; // fall through
 453         case LFUN_HOME:
 454         case LFUN_WORDLEFT:
 455                 result = mathcursor->home(sel) ? DispatchResult(true, true) : DispatchResult(true, FINISHED);
 456                 break;
 457
 458         case LFUN_ENDSEL:
 459         case LFUN_WORDRIGHTSEL:
 460                 sel = true; // fall through
 461         case LFUN_END:
 462         case LFUN_WORDRIGHT:
 463                 result = mathcursor->end(sel) ? DispatchResult(true, true) : DispatchResult(false, FINISHED_RIGHT);
 464                 break;
 465
 466         case LFUN_PRIORSEL:
 467         case LFUN_PRIOR:
 468         case LFUN_BEGINNINGBUFSEL:
 469         case LFUN_BEGINNINGBUF:
 470                 result = DispatchResult(true, FINISHED);
 471                 break;
 472
 473         case LFUN_NEXTSEL:
 474         case LFUN_NEXT:
 475         case LFUN_ENDBUFSEL:
 476         case LFUN_ENDBUF:
 477                 result = DispatchResult(false, FINISHED_RIGHT);
 478                 break;
 479
 480         case LFUN_CELL_FORWARD:
 481                 mathcursor->idxNext();
 482                 break;
 483
 484         case LFUN_CELL_BACKWARD:
 485                 mathcursor->idxPrev();
 486                 break;
 487
 488         case LFUN_DELETE_WORD_BACKWARD:
 489         case LFUN_BACKSPACE:
 490                 recordUndo(bv, Undo::ATOMIC);
 491                 if (!mathcursor->backspace()) {
 492                         result = DispatchResult(true, FINISHED);
 493                         remove_inset = true;
 494                 }
 495                 break;
 496
 497         case LFUN_DELETE_WORD_FORWARD:
 498         case LFUN_DELETE:
 499                 recordUndo(bv, Undo::ATOMIC);
 500                 if (!mathcursor->erase()) {
 501                         result = DispatchResult(true, FINISHED);
 502                         remove_inset = true;
 503                 }
 504                 break;
 505
 506         //    case LFUN_GETXY:
 507         //      sprintf(dispatch_buffer, "%d %d",);
 508         //      DispatchResult= dispatch_buffer;
 509         //      break;
 510         case LFUN_SETXY: {
 511                 lyxerr << "LFUN_SETXY broken!" << endl;
 512                 int x = 0;
 513                 int y = 0;
 514                 istringstream is(cmd.argument.c_str());
 515                 is >> x >> y;
 516                 mathcursor->setPos(x, y);
 517                 break;
 518         }
 519
 520         case LFUN_PASTE: {
 521                 size_t n = 0;
 522                 istringstream is(cmd.argument.c_str());
 523                 is >> n;
 524                 if (was_macro)
 525                         mathcursor->macroModeClose();
 526                 recordUndo(bv, Undo::ATOMIC);
 527                 mathcursor->selPaste(n);
 528                 break;
 529         }
 530
 531         case LFUN_CUT:
 532                 recordUndo(bv, Undo::DELETE);
 533                 mathcursor->selCut();
 534                 break;
 535
 536         case LFUN_COPY:
 537                 mathcursor->selCopy();
 538                 break;
 539
 540
 541         // Special casing for superscript in case of LyX handling
 542         // dead-keys:
 543         case LFUN_CIRCUMFLEX:
 544                 if (cmd.argument.empty()) {
 545                         // do superscript if LyX handles
 546                         // deadkeys
 547                         recordUndo(bv, Undo::ATOMIC);
 548                         mathcursor->script(true);
 549                 }
 550                 break;
 551
 552         case LFUN_UMLAUT:
 553         case LFUN_ACUTE:
 554         case LFUN_GRAVE:
 555         case LFUN_BREVE:
 556         case LFUN_DOT:
 557         case LFUN_MACRON:
 558         case LFUN_CARON:
 559         case LFUN_TILDE:
 560         case LFUN_CEDILLA:
 561         case LFUN_CIRCLE:
 562         case LFUN_UNDERDOT:
 563         case LFUN_TIE:
 564         case LFUN_OGONEK:
 565         case LFUN_HUNG_UMLAUT:
 566                 break;
 567
 568         //  Math fonts
 569         case LFUN_FREEFONT_APPLY:
 570         case LFUN_FREEFONT_UPDATE:
 571                 handleFont2(bv, cmd.argument);
 572                 break;
 573
 574         case LFUN_BOLD:         handleFont(bv, cmd.argument, "mathbf"); break;
 575         case LFUN_SANS:         handleFont(bv, cmd.argument, "mathsf"); break;
 576         case LFUN_EMPH:         handleFont(bv, cmd.argument, "mathcal"); break;
 577         case LFUN_ROMAN:        handleFont(bv, cmd.argument, "mathrm"); break;
 578         case LFUN_CODE:         handleFont(bv, cmd.argument, "texttt"); break;
 579         case LFUN_FRAK:         handleFont(bv, cmd.argument, "mathfrak"); break;
 580         case LFUN_ITAL:         handleFont(bv, cmd.argument, "mathit"); break;
 581         case LFUN_NOUN:         handleFont(bv, cmd.argument, "mathbb"); break;
 582         //case LFUN_FREEFONT_APPLY:  handleFont(bv, cmd.argument, "textrm"); break;
 583         case LFUN_DEFAULT:      handleFont(bv, cmd.argument, "textnormal"); break;
 584
 585         case LFUN_MATH_MODE:
 586                 if (mathcursor->currentMode() == MathInset::TEXT_MODE)
 587                         mathcursor->niceInsert(MathAtom(new MathHullInset("simple")));
 588                 else
 589                         handleFont(bv, cmd.argument, "textrm");
 590                 //bv->owner()->message(_("math text mode toggled"));
 591                 break;
 592
 593         case LFUN_MATH_SIZE:
 594 #if 0
 595                 if (!arg.empty()) {
 596                         recordUndo(bv, Undo::ATOMIC);
 597                         mathcursor->setSize(arg);
 598                 }
 599 #endif
 600                 break;
 601
 602         case LFUN_INSERT_MATRIX: {
 603                 recordUndo(bv, Undo::ATOMIC);
 604                 unsigned int m = 1;
 605                 unsigned int n = 1;
 606                 string v_align;
 607                 string h_align;
 608                 istringstream is(argument);
 609                 is >> m >> n >> v_align >> h_align;
 610                 m = max(1u, m);
 611                 n = max(1u, n);
 612                 v_align += 'c';
 613                 mathcursor->niceInsert(
 614                         MathAtom(new MathArrayInset("array", m, n, v_align[0], h_align)));
 615                 break;
 616         }
 617
 618         case LFUN_SUPERSCRIPT:
 619         case LFUN_SUBSCRIPT:
 620         {
 621                 recordUndo(bv, Undo::ATOMIC);
 622                 mathcursor->script(cmd.action == LFUN_SUPERSCRIPT);
 623                 break;
 624         }
 625
 626         case LFUN_MATH_DELIM:
 627         {
 628                 //lyxerr << "formulabase::LFUN_MATH_DELIM, arg: '" << arg << "'" << endl;
 629                 string ls;
 630                 string rs = split(cmd.argument, ls, ' ');
 631                 // Reasonable default values
 632                 if (ls.empty())
 633                         ls = '(';
 634                 if (rs.empty())
 635                         rs = ')';
 636
 637                 recordUndo(bv, Undo::ATOMIC);
 638                 mathcursor->handleNest(MathAtom(new MathDelimInset(ls, rs)));
 639                 break;
 640         }
 641
 642         case LFUN_SPACE_INSERT:
 643         case LFUN_MATH_SPACE:
 644                 recordUndo(bv, Undo::ATOMIC);
 645                 mathcursor->insert(MathAtom(new MathSpaceInset(",")));
 646                 break;
 647
 648         case LFUN_UNDO:
 649                 bv->owner()->message(_("Invalid action in math mode!"));
 650                 break;
 651
 652
 653         case LFUN_EXEC_COMMAND:
 654                 result = DispatchResult(false);
 655                 break;
 656
 657         case LFUN_INSET_ERT:
 658                 // interpret this as if a backslash was typed
 659                 recordUndo(bv, Undo::ATOMIC);
 660                 mathcursor->interpret('\\');
 661                 break;
 662
 663         case LFUN_BREAKPARAGRAPH:
 664         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
 665         case LFUN_BREAKPARAGRAPH_SKIP:
 666                 argument = "\n";
 667                 // fall through
 668
 669 // FIXME: We probably should swap parts of "math-insert" and "self-insert"
 670 // handling such that "self-insert" works on "arbitrary stuff" too, and
 671 // math-insert only handles special math things like "matrix".
 672         case LFUN_INSERT_MATH:
 673                 recordUndo(bv, Undo::ATOMIC);
 674                 mathcursor->niceInsert(argument);
 675                 break;
 676
 677         case -1:
 678         case LFUN_SELFINSERT:
 679                 if (!argument.empty()) {
 680                         recordUndo(bv, Undo::ATOMIC);
 681                         if (argument.size() == 1)
 682                                 result = mathcursor->interpret(argument[0]) ? DispatchResult(true, true) : DispatchResult(false, FINISHED_RIGHT);
 683                         else
 684                                 mathcursor->insert(argument);
 685                 }
 686                 break;
 687
 688         case LFUN_ESCAPE:
 689                 if (mathcursor->selection())
 690                         mathcursor->selClear();
 691                 else
 692                         result = DispatchResult(false);
 693                 break;
 694
 695         case LFUN_INSET_TOGGLE:
 696                 mathcursor->insetToggle();
 697                 break;
 698
 699         case LFUN_DIALOG_SHOW:
 700                 result = DispatchResult(false);
 701                 break;
 702
 703         case LFUN_DIALOG_SHOW_NEW_INSET: {
 704                 string const & name = argument;
 705                 string data;
 706                 if (name == "ref") {
 707                         RefInset tmp(name);
 708                         data = tmp.createDialogStr(name);
 709                 }
 710
 711                 if (data.empty())
 712                         result = DispatchResult(false);
 713                 else {
 714                         bv->owner()->getDialogs().show(name, data, 0);
 715                 }
 716         }
 717         break;
 718
 719         case LFUN_INSET_APPLY: {
 720                 string const name = cmd.getArg(0);
 721                 InsetBase * base =
 722                         bv->owner()->getDialogs().getOpenInset(name);
 723
 724                 if (base) {
 725                         FuncRequest fr(bv, LFUN_INSET_MODIFY, cmd.argument);
 726                         result = base->dispatch(fr);
 727                 } else {
 728                         MathArray ar;
 729                         if (createMathInset_fromDialogStr(cmd.argument, ar)) {
 730                                 mathcursor->insert(ar);
 731                                 result = DispatchResult(true, true);
 732                         } else {
 733                                 result = DispatchResult(false);
 734                         }
 735                 }
 736         }
 737         break;
 738
 739         default:
 740                 result = DispatchResult(false);
 741         }
 742
 743         if (result == DispatchResult(true, true))
 744                 bv->updateInset(this);
 745
 746         mathcursor->normalize();
 747         mathcursor->touch();
 748
 749         BOOST_ASSERT(mathcursor);
 750
 751         if (mathcursor->selection() || was_selection)
 752                 toggleInsetSelection(bv);
 753
 754         if (result.dispatched()) {
 755                 fitInsetCursor(bv);
 756                 revealCodes(bv);
 757                 cmd.view()->stuffClipboard(mathcursor->grabSelection());
 758         } else {
 759                 releaseMathCursor(bv);
 760                 bv->unlockInset(this);
 761                 if (remove_inset)
 762                         bv->owner()->dispatch(FuncRequest(LFUN_DELETE));
 763         }
 764
 765         return result;  // original version
 766 }
 767
 768
 769 void InsetFormulaBase::revealCodes(BufferView * bv) const
 770 {
 771         if (!mathcursor)
 772                 return;
 773         bv->owner()->message(mathcursor->info());
 774
 775 #if 0
 776         // write something to the minibuffer
 777         // translate to latex
 778         mathcursor->markInsert();
 779         ostringstream os;
 780         write(NULL, os);
 781         string str = os.str();
 782         mathcursor->markErase();
 783         string::size_type pos = 0;
 784         string res;
 785         for (string::iterator it = str.begin(); it != str.end(); ++it) {
 786                 if (*it == '\n')
 787                         res += ' ';
 788                 else if (*it == '\0') {
 789                         res += "  -X-  ";
 790                         pos = it - str.begin();
 791                 }
 792                 else
 793                         res += *it;
 794         }
 795         if (pos > 30)
 796                 res = res.substr(pos - 30);
 797         if (res.size() > 60)
 798                 res = res.substr(0, 60);
 799         bv->owner()->message(res);
 800 #endif
 801 }
 802
 803
 804 InsetOld::Code InsetFormulaBase::lyxCode() const
 805 {
 806         return InsetOld::MATH_CODE;
 807 }
 808
 809
 810 int InsetFormulaBase::ylow() const
 811 {
 812         return yo_ - dim_.asc;
 813 }
 814
 815
 816 int InsetFormulaBase::yhigh() const
 817 {
 818         return yo_ + dim_.des;
 819 }
 820
 821
 822 int InsetFormulaBase::xlow() const
 823 {
 824         return xo_;
 825 }
 826
 827
 828 int InsetFormulaBase::xhigh() const
 829 {
 830         return xo_ + dim_.wid;
 831 }
 832
 833
 834 /////////////////////////////////////////////////////////////////////
 835
 836
 837 bool InsetFormulaBase::searchForward(BufferView * bv, string const & str,
 838                                      bool, bool)
 839 {
 840 #ifdef WITH_WARNINGS
 841 #warning pretty ugly
 842 #endif
 843         static InsetFormulaBase * lastformula = 0;
 844         static MathIterator current = MathIterator(ibegin(par().nucleus()));
 845         static MathArray ar;
 846         static string laststr;
 847
 848         if (lastformula != this || laststr != str) {
 849                 //lyxerr << "reset lastformula to " << this << endl;
 850                 lastformula = this;
 851                 laststr = str;
 852                 current = ibegin(par().nucleus());
 853                 ar.clear();
 854                 mathed_parse_cell(ar, str);
 855         } else {
 856                 ++current;
 857         }
 858         //lyxerr << "searching '" << str << "' in " << this << ar << endl;
 859
 860         for (MathIterator it = current; it != iend(par().nucleus()); ++it) {
 861                 if (it.cell().matchpart(ar, it.back().pos_)) {
 862                         bv->unlockInset(bv->theLockingInset());
 863                         if (!bv->lockInset(this)) {
 864                                 lyxerr << "Cannot lock inset" << endl;
 865                                 return false;
 866                         }
 867                         delete mathcursor;
 868                         mathcursor = new MathCursor(this, true);
 869                         //metrics(bv);
 870                         mathcursor->setSelection(it, ar.size());
 871                         current = it;
 872                         it.jump(ar.size());
 873                         bv->updateInset(this);
 874                         return true;
 875                 }
 876         }
 877
 878         //lyxerr << "not found!" << endl;
 879         lastformula = 0;
 880         return false;
 881 }
 882
 883
 884 bool InsetFormulaBase::searchBackward(BufferView * bv, string const & what,
 885                                       bool a, bool b)
 886 {
 887         lyxerr[Debug::MATHED] << "searching backward not implemented in mathed" << endl;
 888         return searchForward(bv, what, a, b);
 889 }
 890
 891
 892 bool InsetFormulaBase::display() const
 893 {
 894         return par()->asHullInset() && par()->asHullInset()->display();
 895 }
 896
 897
 898 string InsetFormulaBase::selectionAsString() const
 899 {
 900         return mathcursor ? mathcursor->grabSelection() : string();
 901 }
 902
 903 /////////////////////////////////////////////////////////////////////
 904
 905
 906 void mathDispatchCreation(FuncRequest const & cmd, bool display)
 907 {
 908         BufferView * bv = cmd.view();
 909         // use selection if available..
 910         //string sel;
 911         //if (action == LFUN_MATH_IMPORT_SELECTION)
 912         //      sel = "";
 913         //else
 914
 915         string sel = bv->getLyXText()->selectionAsString(*bv->buffer(), false);
 916
 917         if (sel.empty()) {
 918                 InsetFormula * f = new InsetFormula(bv);
 919                 if (openNewInset(bv, f)) {
 920                         bv->theLockingInset()->
 921                                 dispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
 922                         // don't do that also for LFUN_MATH_MODE unless you want end up with
 923                         // always changing to mathrm when opening an inlined inset
 924                         // -- I really hate "LyXfunc overloading"...
 925                         if (display)
 926                                 f->dispatch(FuncRequest(bv, LFUN_MATH_DISPLAY));
 927                         f->dispatch(FuncRequest(bv, LFUN_INSERT_MATH, cmd.argument));
 928                 }
 929         } else {
 930                 // create a macro if we see "\\newcommand" somewhere, and an ordinary
 931                 // formula otherwise
 932                 InsetFormulaBase * f;
 933                 if (sel.find("\\newcommand") == string::npos &&
 934                                 sel.find("\\def") == string::npos)
 935                         f = new InsetFormula(sel);
 936                 else
 937                         f = new InsetFormulaMacro(sel);
 938                 bv->getLyXText()->cutSelection(true, false);
 939                 openNewInset(bv, f);
 940         }
 941         cmd.message(N_("Math editor mode"));
 942 }
 943
 944
 945 void mathDispatch(FuncRequest const & cmd)
 946 {
 947         BufferView * bv = cmd.view();
 948         if (!bv->available())
 949                 return;
 950
 951         switch (cmd.action) {
 952
 953                 case LFUN_MATH_DISPLAY:
 954                         mathDispatchCreation(cmd, true);
 955                         break;
 956
 957                 case LFUN_MATH_MODE:
 958                         mathDispatchCreation(cmd, false);
 959                         break;
 960
 961                 case LFUN_MATH_IMPORT_SELECTION:
 962                         mathDispatchCreation(cmd, false);
 963                         break;
 964
 965                 case LFUN_MATH_MACRO:
 966                         if (cmd.argument.empty())
 967                                 cmd.errorMessage(N_("Missing argument"));
 968                         else {
 969                                 string s = cmd.argument;
 970                                 string const s1 = token(s, ' ', 1);
 971                                 int const nargs = s1.empty() ? 0 : atoi(s1);
 972                                 string const s2 = token(s, ' ', 2);
 973                                 string const type = s2.empty() ? "newcommand" : s2;
 974                                 openNewInset(bv, new InsetFormulaMacro(token(s, ' ', 0), nargs, s2));
 975                         }
 976                         break;
 977
 978                 case LFUN_INSERT_MATH:
 979                 case LFUN_INSERT_MATRIX:
 980                 case LFUN_MATH_DELIM: {
 981                         InsetFormula * f = new InsetFormula(bv);
 982                         if (openNewInset(bv, f)) {
 983                                 bv->theLockingInset()->
 984                                         dispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
 985                                 bv->theLockingInset()->dispatch(cmd);
 986                         }
 987                         break;
 988                 }
 989
 990                 default:
 991                         break;
 992         }
 993 }