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