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 "Lsstream.h"
  15 #include "support/LAssert.h"
  16 #include "formula.h"
  17 #include "formulamacro.h"
  18 #include "funcrequest.h"
  19 #include "BufferView.h"
  20 #include "lyxtext.h"
  21 #include "gettext.h"
  22 #include "debug.h"
  23 #include "math_support.h"
  24 #include "support/lstrings.h"
  25 #include "support/lyxlib.h"
  26 #include "frontends/LyXView.h"
  27 #include "math_arrayinset.h"
  28 #include "math_deliminset.h"
  29 #include "math_cursor.h"
  30 #include "math_factory.h"
  31 #include "math_hullinset.h"
  32 #include "math_parser.h"
  33 #include "math_spaceinset.h"
  34 #include "undo_funcs.h"
  35 #include "frontends/Dialogs.h"
  36 #include "ref_inset.h"
  37
  38
  39 using namespace lyx::support;
  40
  41 using std::endl;
  42 using std::ostream;
  43 using std::vector;
  44 using std::abs;
  45 using std::max;
  46
  47
  48 MathCursor * mathcursor = 0;
  49
  50 namespace {
  51
  52 // local global
  53 int first_x;
  54 int first_y;
  55
  56 bool openNewInset(BufferView * bv, UpdatableInset * new_inset)
  57 {
  58         if (!bv->insertInset(new_inset)) {
  59                 delete new_inset;
  60                 return false;
  61         }
  62         new_inset->localDispatch(FuncRequest(bv, LFUN_INSET_EDIT, "left"));
  63         return true;
  64 }
  65
  66
  67 } // namespace anon
  68
  69
  70
  71 InsetFormulaBase::InsetFormulaBase()
  72         : view_(0), xo_(0), yo_(0)
  73 {
  74         // This is needed as long the math parser is not re-entrant
  75         initMath();
  76         //lyxerr << "sizeof MathInset: " << sizeof(MathInset) << endl;
  77         //lyxerr << "sizeof MetricsInfo: " << sizeof(MetricsInfo) << endl;
  78         //lyxerr << "sizeof MathCharInset: " << sizeof(MathCharInset) << endl;
  79         //lyxerr << "sizeof LyXFont: " << sizeof(LyXFont) << endl;
  80 }
  81
  82
  83 // simply scrap this function if you want
  84 void InsetFormulaBase::mutateToText()
  85 {
  86 #if 0
  87         // translate to latex
  88         ostringstream os;
  89         latex(NULL, os, false, false);
  90         string str = os.str();
  91
  92         // insert this text
  93         LyXText * lt = view_->getLyXText();
  94         string::const_iterator cit = str.begin();
  95         string::const_iterator end = str.end();
  96         for (; cit != end; ++cit)
  97                 view_->owner()->getIntl()->getTransManager().TranslateAndInsert(*cit, lt);
  98
  99         // remove ourselves
 100         //view_->owner()->dispatch(LFUN_ESCAPE);
 101 #endif
 102 }
 103
 104
 105 void InsetFormulaBase::handleFont
 106         (BufferView * bv, string const & arg, string const & font)
 107 {
 108         // this whole function is a hack and won't work for incremental font
 109         // changes...
 110         recordUndo(bv, Undo::ATOMIC);
 111
 112         if (mathcursor->inset()->name() == font)
 113                 mathcursor->handleFont(font);
 114         else {
 115                 mathcursor->handleNest(createMathInset(font));
 116                 mathcursor->insert(arg);
 117         }
 118 }
 119
 120
 121 BufferView * InsetFormulaBase::view() const
 122 {
 123         return view_;
 124 }
 125
 126
 127 void InsetFormulaBase::validate(LaTeXFeatures &) const
 128 {}
 129
 130
 131 string const InsetFormulaBase::editMessage() const
 132 {
 133         return _("Math editor mode");
 134 }
 135
 136
 137 void InsetFormulaBase::insetUnlock(BufferView * bv)
 138 {
 139         if (mathcursor) {
 140                 if (mathcursor->inMacroMode()) {
 141                         mathcursor->macroModeClose();
 142                         bv->updateInset(this);
 143                 }
 144                 releaseMathCursor(bv);
 145         }
 146         generatePreview();
 147         bv->updateInset(this);
 148 }
 149
 150
 151 void InsetFormulaBase::getCursor(BufferView &, int & x, int & y) const
 152 {
 153         mathcursor->getPos(x, y);
 154 }
 155
 156
 157 void InsetFormulaBase::getCursorPos(BufferView *, int & x, int & y) const
 158 {
 159         // calling metrics here destroys the cached xo,yo positions e.g. in
 160         // MathParboxinset. And it would be too expensive anyway...
 161         //metrics(bv);
 162         if (!mathcursor) {
 163                 lyxerr << "getCursorPos - should not happen";
 164                 x = y = 0;
 165                 return;
 166         }
 167         mathcursor->getPos(x, y);
 168         x = mathcursor->targetX();
 169         x -= xo_;
 170         y -= yo_;
 171         //lyxerr << "getCursorPos: " << x << ' ' << y << endl;
 172 }
 173
 174
 175 void InsetFormulaBase::fitInsetCursor(BufferView * bv) const
 176 {
 177         if (!mathcursor)
 178                 return;
 179         int x, y, asc, des;
 180         asc = 10;
 181         des = 2;
 182         //math_font_max_dim(font_, asc, des);
 183         getCursorPos(bv, x, y);
 184         //y += yo_;
 185         //lyxerr << "fitInsetCursor: x: " << x << " y: " << y << " yo: " << yo_ << endl;
 186         bv->fitLockedInsetCursor(x, y, asc, des);
 187 }
 188
 189
 190 void InsetFormulaBase::toggleInsetSelection(BufferView * bv)
 191 {
 192         if (mathcursor)
 193                 bv->updateInset(this);
 194 }
 195
 196
 197 dispatch_result InsetFormulaBase::lfunMouseRelease(FuncRequest const & cmd)
 198 {
 199         if (!mathcursor)
 200                 return UNDISPATCHED;
 201
 202         BufferView * bv = cmd.view();
 203         bv->updateInset(this);
 204         //lyxerr << "lfunMouseRelease: buttons: " << cmd.button() << endl;
 205
 206         if (cmd.button() == mouse_button::button3) {
 207                 // try to dispatch to enclosed insets first
 208                 if (mathcursor->dispatch(cmd) == UNDISPATCHED) {
 209                         // launch math panel for right mouse button
 210                         lyxerr << "lfunMouseRelease: undispatched: " << cmd.button() << endl;
 211                         bv->owner()->getDialogs().show("mathpanel");
 212                 }
 213                 return DISPATCHED;
 214         }
 215
 216         if (cmd.button() == mouse_button::button2) {
 217                 MathArray ar;
 218                 asArray(bv->getClipboard(), ar);
 219                 mathcursor->selClear();
 220                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 221                 mathcursor->insert(ar);
 222                 bv->updateInset(this);
 223                 return DISPATCHED;
 224         }
 225
 226         if (cmd.button() == mouse_button::button1) {
 227                 // try to dispatch to enclosed insets first
 228                 mathcursor->dispatch(cmd);
 229                 cmd.view()->stuffClipboard(mathcursor->grabSelection());
 230                 // try to set the cursor
 231                 //delete mathcursor;
 232                 //mathcursor = new MathCursor(this, x == 0);
 233                 //metrics(bv);
 234                 //mathcursor->setPos(x + xo_, y + yo_);
 235                 return DISPATCHED;
 236         }
 237
 238         return UNDISPATCHED;
 239 }
 240
 241
 242 dispatch_result InsetFormulaBase::lfunMousePress(FuncRequest const & cmd)
 243 {
 244         BufferView * bv = cmd.view();
 245         //lyxerr << "lfunMousePress: buttons: " << cmd.button() << endl;
 246
 247         if (!mathcursor || mathcursor->formula() != this) {
 248                 lyxerr[Debug::MATHED] << "re-create cursor" << endl;
 249                 releaseMathCursor(bv);
 250                 mathcursor = new MathCursor(this, cmd.x == 0);
 251                 //metrics(bv);
 252                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 253         }
 254
 255         if (cmd.button() == mouse_button::button3) {
 256                 mathcursor->dispatch(cmd);
 257                 return DISPATCHED;
 258         }
 259
 260         if (cmd.button() == mouse_button::button1) {
 261                 first_x = cmd.x;
 262                 first_y = cmd.y;
 263                 mathcursor->selClear();
 264                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 265                 mathcursor->dispatch(cmd);
 266                 return DISPATCHED;
 267         }
 268
 269         bv->updateInset(this);
 270         return DISPATCHED;
 271 }
 272
 273
 274 dispatch_result InsetFormulaBase::lfunMouseMotion(FuncRequest const & cmd)
 275 {
 276         if (!mathcursor)
 277                 return DISPATCHED;
 278
 279         if (mathcursor->dispatch(FuncRequest(cmd)) != UNDISPATCHED)
 280                 return DISPATCHED;
 281
 282         // only select with button 1
 283         if (cmd.button() != mouse_button::button1)
 284                 return DISPATCHED;
 285
 286         if (abs(cmd.x - first_x) < 2 && abs(cmd.y - first_y) < 2)
 287                 return DISPATCHED;
 288
 289         first_x = cmd.x;
 290         first_y = cmd.y;
 291
 292         if (!mathcursor->selection())
 293                 mathcursor->selStart();
 294
 295         BufferView * bv = cmd.view();
 296         mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 297         bv->updateInset(this);
 298         return DISPATCHED;
 299 }
 300
 301
 302 dispatch_result InsetFormulaBase::localDispatch(FuncRequest const & cmd)
 303 {
 304         //lyxerr << "InsetFormulaBase::localDispatch: act: " << cmd.action
 305         //      << " arg: '" << cmd.argument
 306         //      << " x: '" << cmd.x
 307         //      << " y: '" << cmd.y
 308         //      << "' button: " << cmd.button() << endl;
 309
 310         BufferView * bv = cmd.view();
 311
 312         // delete empty mathbox (LFUN_BACKSPACE and LFUN_DELETE)
 313         bool remove_inset = false;
 314
 315         switch (cmd.action) {
 316                 case LFUN_INSET_EDIT:
 317                         lyxerr << "Called EDIT with '" << cmd.argument << "'" << endl;
 318                         if (!bv->lockInset(this))
 319                                 lyxerr << "Cannot lock math inset in edit call!" << endl;
 320                         releaseMathCursor(bv);
 321                         if (!cmd.argument.empty()) {
 322                                 mathcursor = new MathCursor(this, cmd.argument == "left");
 323                                 //metrics(bv);
 324                         } else {
 325                                 mathcursor = new MathCursor(this, true);
 326                                 //metrics(bv);
 327                                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 328                         }
 329                         // if that is removed, we won't get the magenta box when entering an
 330                         // inset for the first time
 331                         bv->updateInset(this);
 332                         return DISPATCHED;
 333
 334                 case LFUN_MOUSE_PRESS:
 335                         //lyxerr << "Mouse single press" << endl;
 336                         return lfunMousePress(cmd);
 337                 case LFUN_MOUSE_MOTION:
 338                         //lyxerr << "Mouse motion" << endl;
 339                         return lfunMouseMotion(cmd);
 340                 case LFUN_MOUSE_RELEASE:
 341                         //lyxerr << "Mouse single release" << endl;
 342                         return lfunMouseRelease(cmd);
 343                 case LFUN_MOUSE_DOUBLE:
 344                         //lyxerr << "Mouse double" << endl;
 345                         return localDispatch(FuncRequest(LFUN_WORDSEL));
 346                 default:
 347                         break;
 348         }
 349
 350         if (!mathcursor)
 351                 return UNDISPATCHED;
 352
 353         string argument    = cmd.argument;
 354         RESULT result      = DISPATCHED;
 355         bool sel           = false;
 356         bool was_macro     = mathcursor->inMacroMode();
 357         bool was_selection = mathcursor->selection();
 358
 359         mathcursor->normalize();
 360         mathcursor->touch();
 361
 362         switch (cmd.action) {
 363
 364         case LFUN_MATH_MUTATE:
 365         case LFUN_MATH_DISPLAY:
 366         case LFUN_MATH_NUMBER:
 367         case LFUN_MATH_NONUMBER:
 368         case LFUN_CELL_SPLIT:
 369         case LFUN_BREAKLINE:
 370         case LFUN_DELETE_LINE_FORWARD:
 371         case LFUN_INSERT_LABEL:
 372         case LFUN_MATH_EXTERN:
 373         case LFUN_TABULAR_FEATURE:
 374         case LFUN_PASTESELECTION:
 375         case LFUN_MATH_LIMITS:
 376                 recordUndo(bv, Undo::ATOMIC);
 377                 mathcursor->dispatch(cmd);
 378                 break;
 379
 380         case LFUN_RIGHTSEL:
 381                 sel = true; // fall through...
 382         case LFUN_RIGHT:
 383                 result = mathcursor->right(sel) ? DISPATCHED : FINISHED_RIGHT;
 384                 //lyxerr << "calling scroll 20" << endl;
 385                 //scroll(bv, 20);
 386                 // write something to the minibuffer
 387                 //bv->owner()->message(mathcursor->info());
 388                 break;
 389
 390         case LFUN_LEFTSEL:
 391                 sel = true; // fall through
 392         case LFUN_LEFT:
 393                 result = mathcursor->left(sel) ? DISPATCHED : FINISHED;
 394                 break;
 395
 396         case LFUN_UPSEL:
 397                 sel = true; // fall through
 398         case LFUN_UP:
 399                 result = mathcursor->up(sel) ? DISPATCHED : FINISHED_UP;
 400                 break;
 401
 402         case LFUN_DOWNSEL:
 403                 sel = true; // fall through
 404         case LFUN_DOWN:
 405                 result = mathcursor->down(sel) ? DISPATCHED : FINISHED_DOWN;
 406                 break;
 407
 408         case LFUN_WORDSEL:
 409                 mathcursor->home(false);
 410                 mathcursor->end(true);
 411                 break;
 412
 413         case LFUN_UP_PARAGRAPHSEL:
 414         case LFUN_UP_PARAGRAPH:
 415         case LFUN_DOWN_PARAGRAPHSEL:
 416         case LFUN_DOWN_PARAGRAPH:
 417                 result = FINISHED;
 418                 break;
 419
 420         case LFUN_HOMESEL:
 421         case LFUN_WORDLEFTSEL:
 422                 sel = true; // fall through
 423         case LFUN_HOME:
 424         case LFUN_WORDLEFT:
 425                 result = mathcursor->home(sel) ? DISPATCHED : FINISHED;
 426                 break;
 427
 428         case LFUN_ENDSEL:
 429         case LFUN_WORDRIGHTSEL:
 430                 sel = true; // fall through
 431         case LFUN_END:
 432         case LFUN_WORDRIGHT:
 433                 result = mathcursor->end(sel) ? DISPATCHED : FINISHED_RIGHT;
 434                 break;
 435
 436         case LFUN_PRIORSEL:
 437         case LFUN_PRIOR:
 438         case LFUN_BEGINNINGBUFSEL:
 439         case LFUN_BEGINNINGBUF:
 440                 result = FINISHED;
 441                 break;
 442
 443         case LFUN_NEXTSEL:
 444         case LFUN_NEXT:
 445         case LFUN_ENDBUFSEL:
 446         case LFUN_ENDBUF:
 447                 result = FINISHED_RIGHT;
 448                 break;
 449
 450         case LFUN_CELL_FORWARD:
 451                 mathcursor->idxNext();
 452                 break;
 453
 454         case LFUN_CELL_BACKWARD:
 455                 mathcursor->idxPrev();
 456                 break;
 457
 458         case LFUN_DELETE_WORD_BACKWARD:
 459         case LFUN_BACKSPACE:
 460                 recordUndo(bv, Undo::ATOMIC);
 461                 if (!mathcursor->backspace()) {
 462                         result = FINISHED;
 463                         remove_inset = true;
 464                 }
 465                 break;
 466
 467         case LFUN_DELETE_WORD_FORWARD:
 468         case LFUN_DELETE:
 469                 recordUndo(bv, Undo::ATOMIC);
 470                 if (!mathcursor->erase()) {
 471                         result = FINISHED;
 472                         remove_inset = true;
 473                 }
 474                 break;
 475
 476         //    case LFUN_GETXY:
 477         //      sprintf(dispatch_buffer, "%d %d",);
 478         //      dispatch_result = dispatch_buffer;
 479         //      break;
 480         case LFUN_SETXY: {
 481                 lyxerr << "LFUN_SETXY broken!" << endl;
 482                 int x = 0;
 483                 int y = 0;
 484                 istringstream is(cmd.argument.c_str());
 485                 is >> x >> y;
 486                 mathcursor->setPos(x, y);
 487                 break;
 488         }
 489
 490         case LFUN_PASTE: {
 491                 size_t n = 0;
 492                 istringstream is(cmd.argument.c_str());
 493                 is >> n;
 494                 if (was_macro)
 495                         mathcursor->macroModeClose();
 496                 recordUndo(bv, Undo::ATOMIC);
 497                 mathcursor->selPaste(n);
 498                 break;
 499         }
 500
 501         case LFUN_CUT:
 502                 recordUndo(bv, Undo::DELETE);
 503                 mathcursor->selCut();
 504                 break;
 505
 506         case LFUN_COPY:
 507                 mathcursor->selCopy();
 508                 break;
 509
 510
 511         // Special casing for superscript in case of LyX handling
 512         // dead-keys:
 513         case LFUN_CIRCUMFLEX:
 514                 if (cmd.argument.empty()) {
 515                         // do superscript if LyX handles
 516                         // deadkeys
 517                         recordUndo(bv, Undo::ATOMIC);
 518                         mathcursor->script(true);
 519                 }
 520                 break;
 521
 522         case LFUN_UMLAUT:
 523         case LFUN_ACUTE:
 524         case LFUN_GRAVE:
 525         case LFUN_BREVE:
 526         case LFUN_DOT:
 527         case LFUN_MACRON:
 528         case LFUN_CARON:
 529         case LFUN_TILDE:
 530         case LFUN_CEDILLA:
 531         case LFUN_CIRCLE:
 532         case LFUN_UNDERDOT:
 533         case LFUN_TIE:
 534         case LFUN_OGONEK:
 535         case LFUN_HUNG_UMLAUT:
 536                 break;
 537
 538         //  Math fonts
 539         case LFUN_BOLD:         handleFont(bv, cmd.argument, "mathbf"); break;
 540         case LFUN_SANS:         handleFont(bv, cmd.argument, "mathsf"); break;
 541         case LFUN_EMPH:         handleFont(bv, cmd.argument, "mathcal"); break;
 542         case LFUN_ROMAN:        handleFont(bv, cmd.argument, "mathrm"); break;
 543         case LFUN_CODE:         handleFont(bv, cmd.argument, "texttt"); break;
 544         case LFUN_FRAK:         handleFont(bv, cmd.argument, "mathfrak"); break;
 545         case LFUN_ITAL:         handleFont(bv, cmd.argument, "mathit"); break;
 546         case LFUN_NOUN:         handleFont(bv, cmd.argument, "mathbb"); break;
 547         case LFUN_FREEFONT_APPLY:  handleFont(bv, cmd.argument, "textrm"); break;
 548         case LFUN_DEFAULT:      handleFont(bv, cmd.argument, "textnormal"); break;
 549
 550         case LFUN_MATH_MODE:
 551                 if (mathcursor->currentMode() == MathInset::TEXT_MODE)
 552                         mathcursor->niceInsert(MathAtom(new MathHullInset("simple")));
 553                 else
 554                         handleFont(bv, cmd.argument, "textrm");
 555                 //bv->owner()->message(_("math text mode toggled"));
 556                 break;
 557
 558         case LFUN_MATH_SIZE:
 559 #if 0
 560                 if (!arg.empty()) {
 561                         recordUndo(bv, Undo::ATOMIC);
 562                         mathcursor->setSize(arg);
 563                 }
 564 #endif
 565                 break;
 566
 567         case LFUN_INSERT_MATRIX: {
 568                 recordUndo(bv, Undo::ATOMIC);
 569                 unsigned int m = 1;
 570                 unsigned int n = 1;
 571                 string v_align;
 572                 string h_align;
 573                 istringstream is(STRCONV(argument));
 574                 is >> m >> n >> v_align >> h_align;
 575                 m = max(1u, m);
 576                 n = max(1u, n);
 577                 v_align += 'c';
 578                 mathcursor->niceInsert(
 579                         MathAtom(new MathArrayInset("array", m, n, v_align[0], h_align)));
 580                 break;
 581         }
 582
 583         case LFUN_SUPERSCRIPT:
 584         case LFUN_SUBSCRIPT:
 585         {
 586                 recordUndo(bv, Undo::ATOMIC);
 587                 mathcursor->script(cmd.action == LFUN_SUPERSCRIPT);
 588                 break;
 589         }
 590
 591         case LFUN_MATH_DELIM:
 592         {
 593                 //lyxerr << "formulabase::LFUN_MATH_DELIM, arg: '" << arg << "'" << endl;
 594                 string ls;
 595                 string rs = split(cmd.argument, ls, ' ');
 596                 // Reasonable default values
 597                 if (ls.empty())
 598                         ls = '(';
 599                 if (rs.empty())
 600                         rs = ')';
 601
 602                 recordUndo(bv, Undo::ATOMIC);
 603                 mathcursor->handleNest(MathAtom(new MathDelimInset(ls, rs)));
 604                 break;
 605         }
 606
 607         case LFUN_SPACE_INSERT:
 608         case LFUN_MATH_SPACE:
 609                 recordUndo(bv, Undo::ATOMIC);
 610                 mathcursor->insert(MathAtom(new MathSpaceInset(",")));
 611                 break;
 612
 613         case LFUN_UNDO:
 614                 bv->owner()->message(_("Invalid action in math mode!"));
 615                 break;
 616
 617
 618         case LFUN_EXEC_COMMAND:
 619                 result = UNDISPATCHED;
 620                 break;
 621
 622         case LFUN_INSET_ERT:
 623                 // interpret this as if a backslash was typed
 624                 recordUndo(bv, Undo::ATOMIC);
 625                 mathcursor->interpret('\\');
 626                 break;
 627
 628         case LFUN_BREAKPARAGRAPH:
 629         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
 630         case LFUN_BREAKPARAGRAPH_SKIP:
 631                 argument = "\n";
 632                 // fall through
 633
 634 // FIXME: We probably should swap parts of "math-insert" and "self-insert"
 635 // handling such that "self-insert" works on "arbitrary stuff" too, and
 636 // math-insert only handles special math things like "matrix".
 637         case LFUN_INSERT_MATH:
 638                 recordUndo(bv, Undo::ATOMIC);
 639                 mathcursor->niceInsert(argument);
 640                 break;
 641
 642         case -1:
 643         case LFUN_SELFINSERT:
 644                 if (!argument.empty()) {
 645                         recordUndo(bv, Undo::ATOMIC);
 646                         if (argument.size() == 1)
 647                                 result = mathcursor->interpret(argument[0]) ? DISPATCHED : FINISHED_RIGHT;
 648                         else
 649                                 mathcursor->insert(argument);
 650                 }
 651                 break;
 652
 653         case LFUN_ESCAPE:
 654                 if (mathcursor->selection())
 655                         mathcursor->selClear();
 656                 else
 657                         result = UNDISPATCHED;
 658                 break;
 659
 660         case LFUN_INSET_TOGGLE:
 661                 mathcursor->insetToggle();
 662                 break;
 663
 664         case LFUN_DIALOG_SHOW:
 665                 result = UNDISPATCHED;
 666                 break;
 667
 668         case LFUN_DIALOG_SHOW_NEW_INSET: {
 669                 string const & name = argument;
 670                 string data;
 671                 if (name == "ref") {
 672                         RefInset tmp(name);
 673                         data = tmp.createDialogStr(name);
 674                 }
 675
 676                 if (data.empty())
 677                         result = UNDISPATCHED;
 678                 else {
 679                         bv->owner()->getDialogs().show(name, data, 0);
 680                 }
 681         }
 682         break;
 683
 684         case LFUN_INSET_APPLY: {
 685                 string const name = cmd.getArg(0);
 686                 InsetBase * base =
 687                         bv->owner()->getDialogs().getOpenInset(name);
 688
 689                 if (base) {
 690                         FuncRequest fr(bv, LFUN_INSET_MODIFY, cmd.argument);
 691                         result = base->localDispatch(fr);
 692                 } else {
 693                         MathArray ar;
 694                         if (createMathInset_fromDialogStr(cmd.argument, ar)) {
 695                                 mathcursor->insert(ar);
 696                                 result = DISPATCHED;
 697                         } else {
 698                                 result = UNDISPATCHED;
 699                         }
 700                 }
 701         }
 702         break;
 703
 704         default:
 705                 result = UNDISPATCHED;
 706         }
 707
 708         if (result == DISPATCHED)
 709                 bv->updateInset(this);
 710
 711         mathcursor->normalize();
 712         mathcursor->touch();
 713
 714         Assert(mathcursor);
 715
 716         if (mathcursor->selection() || was_selection)
 717                 toggleInsetSelection(bv);
 718
 719         if (result == DISPATCHED || result == DISPATCHED_NOUPDATE ||
 720             result == UNDISPATCHED) {
 721                 fitInsetCursor(bv);
 722                 revealCodes(bv);
 723                 cmd.view()->stuffClipboard(mathcursor->grabSelection());
 724         } else {
 725                 releaseMathCursor(bv);
 726                 bv->unlockInset(this);
 727                 if (remove_inset)
 728                         bv->owner()->dispatch(FuncRequest(LFUN_DELETE));
 729         }
 730
 731         return result;  // original version
 732 }
 733
 734
 735 void InsetFormulaBase::revealCodes(BufferView * bv) const
 736 {
 737         if (!mathcursor)
 738                 return;
 739         bv->owner()->message(mathcursor->info());
 740
 741 #if 0
 742         // write something to the minibuffer
 743         // translate to latex
 744         mathcursor->markInsert();
 745         ostringstream os;
 746         write(NULL, os);
 747         string str = os.str();
 748         mathcursor->markErase();
 749         string::size_type pos = 0;
 750         string res;
 751         for (string::iterator it = str.begin(); it != str.end(); ++it) {
 752                 if (*it == '\n')
 753                         res += ' ';
 754                 else if (*it == '\0') {
 755                         res += "  -X-  ";
 756                         pos = it - str.begin();
 757                 }
 758                 else
 759                         res += *it;
 760         }
 761         if (pos > 30)
 762                 res = res.substr(pos - 30);
 763         if (res.size() > 60)
 764                 res = res.substr(0, 60);
 765         bv->owner()->message(res);
 766 #endif
 767 }
 768
 769
 770 InsetOld::Code InsetFormulaBase::lyxCode() const
 771 {
 772         return InsetOld::MATH_CODE;
 773 }
 774
 775
 776 int InsetFormulaBase::ylow() const
 777 {
 778         return yo_ - dim_.asc;
 779 }
 780
 781
 782 int InsetFormulaBase::yhigh() const
 783 {
 784         return yo_ + dim_.des;
 785 }
 786
 787
 788 int InsetFormulaBase::xlow() const
 789 {
 790         return xo_;
 791 }
 792
 793
 794 int InsetFormulaBase::xhigh() const
 795 {
 796         return xo_ + dim_.wid;
 797 }
 798
 799
 800 /////////////////////////////////////////////////////////////////////
 801
 802
 803 bool InsetFormulaBase::searchForward(BufferView * bv, string const & str,
 804                                      bool, bool)
 805 {
 806 #ifdef WITH_WARNINGS
 807 #warning pretty ugly
 808 #endif
 809         static InsetFormulaBase * lastformula = 0;
 810         static MathIterator current = MathIterator(ibegin(par().nucleus()));
 811         static MathArray ar;
 812         static string laststr;
 813
 814         if (lastformula != this || laststr != str) {
 815                 //lyxerr << "reset lastformula to " << this << endl;
 816                 lastformula = this;
 817                 laststr = str;
 818                 current = ibegin(par().nucleus());
 819                 ar.clear();
 820                 mathed_parse_cell(ar, str);
 821         } else {
 822                 ++current;
 823         }
 824         //lyxerr << "searching '" << str << "' in " << this << ar << endl;
 825
 826         for (MathIterator it = current; it != iend(par().nucleus()); ++it) {
 827                 if (it.cell().matchpart(ar, it.back().pos_)) {
 828                         bv->unlockInset(bv->theLockingInset());
 829                         if (!bv->lockInset(this)) {
 830                                 lyxerr << "Cannot lock inset" << endl;
 831                                 return false;
 832                         }
 833                         delete mathcursor;
 834                         mathcursor = new MathCursor(this, true);
 835                         //metrics(bv);
 836                         mathcursor->setSelection(it, ar.size());
 837                         current = it;
 838                         it.jump(ar.size());
 839                         bv->updateInset(this);
 840                         return true;
 841                 }
 842         }
 843
 844         //lyxerr << "not found!" << endl;
 845         lastformula = 0;
 846         return false;
 847 }
 848
 849
 850 bool InsetFormulaBase::searchBackward(BufferView * bv, string const & what,
 851                                       bool a, bool b)
 852 {
 853         lyxerr[Debug::MATHED] << "searching backward not implemented in mathed" << endl;
 854         return searchForward(bv, what, a, b);
 855 }
 856
 857
 858 bool InsetFormulaBase::display() const
 859 {
 860         return par()->asHullInset() && par()->asHullInset()->display();
 861 }
 862
 863
 864 string InsetFormulaBase::selectionAsString() const
 865 {
 866         return mathcursor ? mathcursor->grabSelection() : string();
 867 }
 868
 869 /////////////////////////////////////////////////////////////////////
 870
 871
 872 void mathDispatchCreation(FuncRequest const & cmd, bool display)
 873 {
 874         BufferView * bv = cmd.view();
 875         // use selection if available..
 876         //string sel;
 877         //if (action == LFUN_MATH_IMPORT_SELECTION)
 878         //      sel = "";
 879         //else
 880
 881         string sel = bv->getLyXText()->selectionAsString(*bv->buffer(), false);
 882
 883         if (sel.empty()) {
 884                 InsetFormula * f = new InsetFormula(bv);
 885                 if (openNewInset(bv, f)) {
 886                         bv->theLockingInset()->
 887                                 localDispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
 888                         // don't do that also for LFUN_MATH_MODE unless you want end up with
 889                         // always changing to mathrm when opening an inlined inset
 890                         // -- I really hate "LyXfunc overloading"...
 891                         if (display)
 892                                 f->localDispatch(FuncRequest(bv, LFUN_MATH_DISPLAY));
 893                         f->localDispatch(FuncRequest(bv, LFUN_INSERT_MATH, cmd.argument));
 894                 }
 895         } else {
 896                 // create a macro if we see "\\newcommand" somewhere, and an ordinary
 897                 // formula otherwise
 898                 InsetFormulaBase * f;
 899                 if (sel.find("\\newcommand") == string::npos &&
 900                                 sel.find("\\def") == string::npos)
 901                         f = new InsetFormula(sel);
 902                 else
 903                         f = new InsetFormulaMacro(sel);
 904                 bv->getLyXText()->cutSelection(true, false);
 905                 openNewInset(bv, f);
 906         }
 907         cmd.message(N_("Math editor mode"));
 908 }
 909
 910
 911 void mathDispatch(FuncRequest const & cmd)
 912 {
 913         BufferView * bv = cmd.view();
 914         if (!bv->available())
 915                 return;
 916
 917         switch (cmd.action) {
 918
 919                 case LFUN_MATH_DISPLAY:
 920                         mathDispatchCreation(cmd, true);
 921                         break;
 922
 923                 case LFUN_MATH_MODE:
 924                         mathDispatchCreation(cmd, false);
 925                         break;
 926
 927                 case LFUN_MATH_IMPORT_SELECTION:
 928                         mathDispatchCreation(cmd, false);
 929                         break;
 930
 931                 case LFUN_MATH_MACRO:
 932                         if (cmd.argument.empty())
 933                                 cmd.errorMessage(N_("Missing argument"));
 934                         else {
 935                                 string s = cmd.argument;
 936                                 string const s1 = token(s, ' ', 1);
 937                                 int const nargs = s1.empty() ? 0 : atoi(s1);
 938                                 string const s2 = token(s, ' ', 2);
 939                                 string const type = s2.empty() ? "newcommand" : s2;
 940                                 openNewInset(bv, new InsetFormulaMacro(token(s, ' ', 0), nargs, s2));
 941                         }
 942                         break;
 943
 944                 case LFUN_INSERT_MATH:
 945                 case LFUN_INSERT_MATRIX:
 946                 case LFUN_MATH_DELIM: {
 947                         InsetFormula * f = new InsetFormula(bv);
 948                         if (openNewInset(bv, f)) {
 949                                 bv->theLockingInset()->
 950                                         localDispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
 951                                 bv->theLockingInset()->localDispatch(cmd);
 952                         }
 953                         break;
 954                 }
 955
 956                 default:
 957                         break;
 958         }
 959 }