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