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