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