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