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