src/mathed/formulabase.C

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