src/mathed/formulabase.C

   1 /**
   2  * \file formulabase.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Alejandro Aguilar Sierra
   7  * \author André Pönitz
   8  *
   9  * Full author contact details are available in file CREDITS.
  10  */
  11
  12 #include <config.h>
  13
  14 #include "cursor.h"
  15 #include "formulabase.h"
  16 #include "formula.h"
  17 #include "formulamacro.h"
  18 #include "math_support.h"
  19 #include "math_arrayinset.h"
  20 #include "math_deliminset.h"
  21 #include "math_cursor.h"
  22 #include "math_factory.h"
  23 #include "math_hullinset.h"
  24 #include "math_parser.h"
  25 #include "math_spaceinset.h"
  26 #include "ref_inset.h"
  27
  28 #include "BufferView.h"
  29 #include "bufferview_funcs.h"
  30 #include "dispatchresult.h"
  31 #include "debug.h"
  32 #include "funcrequest.h"
  33 #include "gettext.h"
  34 #include "LColor.h"
  35 #include "lyxtext.h"
  36 #include "undo.h"
  37
  38 #include "frontends/LyXView.h"
  39 #include "frontends/Dialogs.h"
  40
  41 #include "support/std_sstream.h"
  42 #include "support/lstrings.h"
  43 #include "support/lyxlib.h"
  44
  45 using lyx::support::atoi;
  46 using lyx::support::split;
  47 using lyx::support::token;
  48
  49 using std::string;
  50 using std::abs;
  51 using std::endl;
  52 using std::max;
  53
  54 using std::istringstream;
  55
  56
  57 MathCursor * mathcursor = 0;
  58
  59 namespace {
  60
  61 // local global
  62 int first_x;
  63 int first_y;
  64
  65 bool openNewInset(BufferView * bv, UpdatableInset * inset)
  66 {
  67         if (!bv->insertInset(inset)) {
  68                 delete inset;
  69                 return false;
  70         }
  71         inset->edit(bv, true);
  72         return true;
  73 }
  74
  75
  76 } // namespace anon
  77
  78
  79
  80 InsetFormulaBase::InsetFormulaBase()
  81 {
  82         // This is needed as long the math parser is not re-entrant
  83         initMath();
  84         //lyxerr << "sizeof MathInset: " << sizeof(MathInset) << endl;
  85         //lyxerr << "sizeof MetricsInfo: " << sizeof(MetricsInfo) << endl;
  86         //lyxerr << "sizeof MathCharInset: " << sizeof(MathCharInset) << endl;
  87         //lyxerr << "sizeof LyXFont: " << sizeof(LyXFont) << endl;
  88 }
  89
  90
  91 // simply scrap this function if you want
  92 void InsetFormulaBase::mutateToText()
  93 {
  94 #if 0
  95         // translate to latex
  96         ostringstream os;
  97         latex(NULL, os, false, false);
  98         string str = os.str();
  99
 100         // insert this text
 101         LyXText * lt = view_->getLyXText();
 102         string::const_iterator cit = str.begin();
 103         string::const_iterator end = str.end();
 104         for (; cit != end; ++cit)
 105                 view_->owner()->getIntl()->getTransManager().TranslateAndInsert(*cit, lt);
 106
 107         // remove ourselves
 108         //view_->owner()->dispatch(LFUN_ESCAPE);
 109 #endif
 110 }
 111
 112
 113 void InsetFormulaBase::handleFont
 114         (BufferView * bv, string const & arg, string const & font)
 115 {
 116         // this whole function is a hack and won't work for incremental font
 117         // changes...
 118         recordUndo(bv, Undo::ATOMIC);
 119
 120         if (mathcursor->inset()->name() == font)
 121                 mathcursor->handleFont(font);
 122         else {
 123                 mathcursor->handleNest(createMathInset(font));
 124                 mathcursor->insert(arg);
 125         }
 126 }
 127
 128
 129 void InsetFormulaBase::handleFont2(BufferView * bv, string const & arg)
 130 {
 131         recordUndo(bv, Undo::ATOMIC);
 132         LyXFont font;
 133         bool b;
 134         bv_funcs::string2font(arg, font, b);
 135         if (font.color() != LColor::inherit) {
 136                 MathAtom at = createMathInset("color");
 137                 asArray(lcolor.getGUIName(font.color()), at.nucleus()->cell(0));
 138                 mathcursor->handleNest(at, 1);
 139         }
 140 }
 141
 142
 143
 144 void InsetFormulaBase::validate(LaTeXFeatures &) const
 145 {}
 146
 147
 148 string const InsetFormulaBase::editMessage() const
 149 {
 150         return _("Math editor mode");
 151 }
 152
 153
 154 void InsetFormulaBase::insetUnlock(BufferView * bv)
 155 {
 156         if (mathcursor) {
 157                 if (mathcursor->inMacroMode())
 158                         mathcursor->macroModeClose();
 159                 releaseMathCursor(bv);
 160         }
 161         if (bv->buffer())
 162                 generatePreview(*bv->buffer());
 163         bv->update();
 164 }
 165
 166
 167 void InsetFormulaBase::getCursor(BufferView &, int & x, int & y) const
 168 {
 169         mathcursor->getScreenPos(x, y);
 170 }
 171
 172
 173 void InsetFormulaBase::getCursorPos(int, int & x, int & y) const
 174 {
 175         if (mathcursor) {
 176                 mathcursor->getScreenPos(x, y);
 177                 x = mathcursor->targetX();
 178                 x -= xo_;
 179                 y -= yo_;
 180                 lyxerr << "InsetFormulaBase::getCursorPos: " << x << ' ' << y << endl;
 181         } else {
 182                 x = 0;
 183                 y = 0;
 184                 lyxerr << "getCursorPos - should not happen";
 185         }
 186 }
 187
 188
 189 void InsetFormulaBase::getCursorDim(int & asc, int & desc) const
 190 {
 191         if (mathcursor) {
 192                 asc = 10;
 193                 desc = 2;
 194                 //math_font_max_dim(font_, asc, des);
 195         }
 196 }
 197
 198
 199 void InsetFormulaBase::toggleInsetSelection(BufferView * bv)
 200 {
 201         if (mathcursor)
 202                 bv->update();
 203 }
 204
 205
 206 DispatchResult InsetFormulaBase::lfunMouseRelease(FuncRequest const & cmd)
 207 {
 208         if (!mathcursor)
 209                 return DispatchResult(false);
 210
 211         BufferView * bv = cmd.view();
 212         bv->update();
 213         //lyxerr << "lfunMouseRelease: buttons: " << cmd.button() << endl;
 214
 215         if (cmd.button() == mouse_button::button3) {
 216                 // try to dispatch to enclosed insets first
 217                 if (!mathcursor->dispatch(cmd).dispatched()) {
 218                         // launch math panel for right mouse button
 219                         lyxerr << "lfunMouseRelease: undispatched: " << cmd.button() << endl;
 220                         bv->owner()->getDialogs().show("mathpanel");
 221                 }
 222                 return DispatchResult(true, true);
 223         }
 224
 225         if (cmd.button() == mouse_button::button2) {
 226                 MathArray ar;
 227                 asArray(bv->getClipboard(), ar);
 228                 mathcursor->selClear();
 229                 mathcursor->setScreenPos(cmd.x + xo_, cmd.y + yo_);
 230                 mathcursor->insert(ar);
 231                 bv->update();
 232                 return DispatchResult(true, true);
 233         }
 234
 235         if (cmd.button() == mouse_button::button1) {
 236                 // try to dispatch to enclosed insets first
 237                 mathcursor->dispatch(cmd);
 238                 cmd.view()->stuffClipboard(mathcursor->grabSelection());
 239                 // try to set the cursor
 240                 //delete mathcursor;
 241                 //mathcursor = new MathCursor(this, x == 0);
 242                 //metrics(bv);
 243                 //mathcursor->setScreenPos(x + xo_, y + yo_);
 244                 return DispatchResult(true, true);
 245         }
 246
 247         return DispatchResult(false);
 248 }
 249
 250
 251 DispatchResult InsetFormulaBase::lfunMousePress(FuncRequest const & cmd)
 252 {
 253         BufferView * bv = cmd.view();
 254         //lyxerr << "lfunMousePress: buttons: " << cmd.button() << endl;
 255
 256         if (!mathcursor || mathcursor->formula() != this) {
 257                 lyxerr[Debug::MATHED] << "re-create cursor" << endl;
 258                 releaseMathCursor(bv);
 259                 mathcursor = new MathCursor(this, cmd.x == 0);
 260                 //metrics(bv);
 261                 mathcursor->setScreenPos(cmd.x + xo_, cmd.y + yo_);
 262         }
 263
 264         if (cmd.button() == mouse_button::button3) {
 265                 mathcursor->dispatch(cmd);
 266                 return DispatchResult(true, true);
 267         }
 268
 269         if (cmd.button() == mouse_button::button1) {
 270                 first_x = cmd.x;
 271                 first_y = cmd.y;
 272                 mathcursor->selClear();
 273                 mathcursor->setScreenPos(cmd.x + xo_, cmd.y + yo_);
 274                 mathcursor->dispatch(cmd);
 275                 return DispatchResult(true, true);
 276         }
 277
 278         bv->update();
 279         return DispatchResult(true, true);
 280 }
 281
 282
 283 DispatchResult InsetFormulaBase::lfunMouseMotion(FuncRequest const & cmd)
 284 {
 285         if (!mathcursor)
 286                 return DispatchResult(true, true);
 287
 288         if (mathcursor->dispatch(FuncRequest(cmd)).dispatched())
 289                 return DispatchResult(true, true);
 290
 291         // only select with button 1
 292         if (cmd.button() != mouse_button::button1)
 293                 return DispatchResult(true, true);
 294
 295         if (abs(cmd.x - first_x) < 2 && abs(cmd.y - first_y) < 2)
 296                 return DispatchResult(true, true);
 297
 298         first_x = cmd.x;
 299         first_y = cmd.y;
 300
 301         if (!mathcursor->selection())
 302                 mathcursor->selStart();
 303
 304         BufferView * bv = cmd.view();
 305         mathcursor->setScreenPos(cmd.x + xo_, cmd.y + yo_);
 306         bv->update();
 307         return DispatchResult(true, true);
 308 }
 309
 310
 311 void InsetFormulaBase::edit(BufferView * bv, bool left)
 312 {
 313         lyxerr << "Called FormulaBase::edit" << endl;
 314         releaseMathCursor(bv);
 315         mathcursor = new MathCursor(this, left);
 316         bv->fullCursor().push(this);
 317         // if that is removed, we won't get the magenta box when entering an
 318         // inset for the first time
 319         bv->update();
 320 }
 321
 322
 323 void InsetFormulaBase::edit(BufferView * bv, int x, int y)
 324 {
 325         lyxerr << "Called FormulaBase::EDIT with '" << x << ' ' << y << "'" << endl;
 326         releaseMathCursor(bv);
 327         mathcursor = new MathCursor(this, true);
 328         //metrics(bv);
 329         mathcursor->setScreenPos(x + xo_, y + yo_);
 330         bv->fullCursor().push(this);
 331         // if that is removed, we won't get the magenta box when entering an
 332         // inset for the first time
 333         bv->update();
 334 }
 335
 336
 337 DispatchResult
 338 InsetFormulaBase::priv_dispatch(FuncRequest const & cmd,
 339                                 idx_type &, pos_type &)
 340 {
 341         //lyxerr << "InsetFormulaBase::localDispatch: act: " << cmd.action
 342         //      << " arg: '" << cmd.argument
 343         //      << "' x: '" << cmd.x
 344         //      << " y: '" << cmd.y
 345         //      << "' button: " << cmd.button() << endl;
 346
 347         BufferView * bv = cmd.view();
 348
 349         // delete empty mathbox (LFUN_BACKSPACE and LFUN_DELETE)
 350         bool remove_inset = false;
 351
 352         switch (cmd.action) {
 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 DispatchResult(false);
 371
 372         string argument    = cmd.argument;
 373         DispatchResult result(true);
 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) ?
 403                         DispatchResult(true, true) : DispatchResult(false, 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) ?
 414                         DispatchResult(true, true) : DispatchResult(false, FINISHED);
 415                 break;
 416
 417         case LFUN_UPSEL:
 418                 sel = true; // fall through
 419         case LFUN_UP:
 420                 result = mathcursor->up(sel) ?
 421                         DispatchResult(true, true) : DispatchResult(false, FINISHED_UP);
 422                 break;
 423
 424         case LFUN_DOWNSEL:
 425                 sel = true; // fall through
 426         case LFUN_DOWN:
 427                 result = mathcursor->down(sel) ?
 428                         DispatchResult(true, true) : DispatchResult(false, FINISHED_DOWN);
 429                 break;
 430
 431         case LFUN_WORDSEL:
 432                 mathcursor->home(false);
 433                 mathcursor->end(true);
 434                 break;
 435
 436         case LFUN_UP_PARAGRAPHSEL:
 437         case LFUN_UP_PARAGRAPH:
 438         case LFUN_DOWN_PARAGRAPHSEL:
 439         case LFUN_DOWN_PARAGRAPH:
 440                 result = DispatchResult(true, FINISHED);
 441                 break;
 442
 443         case LFUN_HOMESEL:
 444         case LFUN_WORDLEFTSEL:
 445                 sel = true; // fall through
 446         case LFUN_HOME:
 447         case LFUN_WORDLEFT:
 448                 result = mathcursor->home(sel) ? DispatchResult(true, true) : DispatchResult(true, FINISHED);
 449                 break;
 450
 451         case LFUN_ENDSEL:
 452         case LFUN_WORDRIGHTSEL:
 453                 sel = true; // fall through
 454         case LFUN_END:
 455         case LFUN_WORDRIGHT:
 456                 result = mathcursor->end(sel) ? DispatchResult(true, true) : DispatchResult(false, FINISHED_RIGHT);
 457                 break;
 458
 459         case LFUN_PRIORSEL:
 460         case LFUN_PRIOR:
 461         case LFUN_BEGINNINGBUFSEL:
 462         case LFUN_BEGINNINGBUF:
 463                 result = DispatchResult(true, FINISHED);
 464                 break;
 465
 466         case LFUN_NEXTSEL:
 467         case LFUN_NEXT:
 468         case LFUN_ENDBUFSEL:
 469         case LFUN_ENDBUF:
 470                 result = DispatchResult(false, FINISHED_RIGHT);
 471                 break;
 472
 473         case LFUN_CELL_FORWARD:
 474                 mathcursor->idxNext();
 475                 break;
 476
 477         case LFUN_CELL_BACKWARD:
 478                 mathcursor->idxPrev();
 479                 break;
 480
 481         case LFUN_DELETE_WORD_BACKWARD:
 482         case LFUN_BACKSPACE:
 483                 recordUndo(bv, Undo::ATOMIC);
 484                 if (!mathcursor->backspace()) {
 485                         result = DispatchResult(true, FINISHED);
 486                         remove_inset = true;
 487                 }
 488                 break;
 489
 490         case LFUN_DELETE_WORD_FORWARD:
 491         case LFUN_DELETE:
 492                 recordUndo(bv, Undo::ATOMIC);
 493                 if (!mathcursor->erase()) {
 494                         result = DispatchResult(true, FINISHED);
 495                         remove_inset = true;
 496                 }
 497                 break;
 498
 499         //    case LFUN_GETXY:
 500         //      sprintf(dispatch_buffer, "%d %d",);
 501         //      DispatchResult= dispatch_buffer;
 502         //      break;
 503         case LFUN_SETXY: {
 504                 lyxerr << "LFUN_SETXY broken!" << endl;
 505                 int x = 0;
 506                 int y = 0;
 507                 istringstream is(cmd.argument.c_str());
 508                 is >> x >> y;
 509                 mathcursor->setScreenPos(x, y);
 510                 break;
 511         }
 512
 513         case LFUN_PASTE: {
 514                 size_t n = 0;
 515                 istringstream is(cmd.argument.c_str());
 516                 is >> n;
 517                 if (was_macro)
 518                         mathcursor->macroModeClose();
 519                 recordUndo(bv, Undo::ATOMIC);
 520                 mathcursor->selPaste(n);
 521                 break;
 522         }
 523
 524         case LFUN_CUT:
 525                 recordUndo(bv, Undo::DELETE);
 526                 mathcursor->selCut();
 527                 break;
 528
 529         case LFUN_COPY:
 530                 mathcursor->selCopy();
 531                 break;
 532
 533
 534         // Special casing for superscript in case of LyX handling
 535         // dead-keys:
 536         case LFUN_CIRCUMFLEX:
 537                 if (cmd.argument.empty()) {
 538                         // do superscript if LyX handles
 539                         // deadkeys
 540                         recordUndo(bv, Undo::ATOMIC);
 541                         mathcursor->script(true);
 542                 }
 543                 break;
 544
 545         case LFUN_UMLAUT:
 546         case LFUN_ACUTE:
 547         case LFUN_GRAVE:
 548         case LFUN_BREVE:
 549         case LFUN_DOT:
 550         case LFUN_MACRON:
 551         case LFUN_CARON:
 552         case LFUN_TILDE:
 553         case LFUN_CEDILLA:
 554         case LFUN_CIRCLE:
 555         case LFUN_UNDERDOT:
 556         case LFUN_TIE:
 557         case LFUN_OGONEK:
 558         case LFUN_HUNG_UMLAUT:
 559                 break;
 560
 561         //  Math fonts
 562         case LFUN_FREEFONT_APPLY:
 563         case LFUN_FREEFONT_UPDATE:
 564                 handleFont2(bv, cmd.argument);
 565                 break;
 566
 567         case LFUN_BOLD:         handleFont(bv, cmd.argument, "mathbf"); break;
 568         case LFUN_SANS:         handleFont(bv, cmd.argument, "mathsf"); break;
 569         case LFUN_EMPH:         handleFont(bv, cmd.argument, "mathcal"); break;
 570         case LFUN_ROMAN:        handleFont(bv, cmd.argument, "mathrm"); break;
 571         case LFUN_CODE:         handleFont(bv, cmd.argument, "texttt"); break;
 572         case LFUN_FRAK:         handleFont(bv, cmd.argument, "mathfrak"); break;
 573         case LFUN_ITAL:         handleFont(bv, cmd.argument, "mathit"); break;
 574         case LFUN_NOUN:         handleFont(bv, cmd.argument, "mathbb"); break;
 575         //case LFUN_FREEFONT_APPLY:  handleFont(bv, cmd.argument, "textrm"); break;
 576         case LFUN_DEFAULT:      handleFont(bv, cmd.argument, "textnormal"); break;
 577
 578         case LFUN_MATH_MODE:
 579                 if (mathcursor->currentMode() == MathInset::TEXT_MODE)
 580                         mathcursor->niceInsert(MathAtom(new MathHullInset("simple")));
 581                 else
 582                         handleFont(bv, cmd.argument, "textrm");
 583                 //bv->owner()->message(_("math text mode toggled"));
 584                 break;
 585
 586         case LFUN_MATH_SIZE:
 587 #if 0
 588                 if (!arg.empty()) {
 589                         recordUndo(bv, Undo::ATOMIC);
 590                         mathcursor->setSize(arg);
 591                 }
 592 #endif
 593                 break;
 594
 595         case LFUN_INSERT_MATRIX: {
 596                 recordUndo(bv, Undo::ATOMIC);
 597                 unsigned int m = 1;
 598                 unsigned int n = 1;
 599                 string v_align;
 600                 string h_align;
 601                 istringstream is(argument);
 602                 is >> m >> n >> v_align >> h_align;
 603                 m = max(1u, m);
 604                 n = max(1u, n);
 605                 v_align += 'c';
 606                 mathcursor->niceInsert(
 607                         MathAtom(new MathArrayInset("array", m, n, v_align[0], h_align)));
 608                 break;
 609         }
 610
 611         case LFUN_MATH_DELIM: {
 612                 //lyxerr << "formulabase::LFUN_MATH_DELIM, arg: '" << arg << "'" << endl;
 613                 string ls;
 614                 string rs = split(cmd.argument, ls, ' ');
 615                 // Reasonable default values
 616                 if (ls.empty())
 617                         ls = '(';
 618                 if (rs.empty())
 619                         rs = ')';
 620
 621                 recordUndo(bv, Undo::ATOMIC);
 622                 mathcursor->handleNest(MathAtom(new MathDelimInset(ls, rs)));
 623                 break;
 624         }
 625
 626         case LFUN_SPACE_INSERT:
 627         case LFUN_MATH_SPACE:
 628                 recordUndo(bv, Undo::ATOMIC);
 629                 mathcursor->insert(MathAtom(new MathSpaceInset(",")));
 630                 break;
 631
 632         case LFUN_UNDO:
 633                 bv->owner()->message(_("Invalid action in math mode!"));
 634                 break;
 635
 636
 637         case LFUN_EXEC_COMMAND:
 638                 result = DispatchResult(false);
 639                 break;
 640
 641         case LFUN_INSET_ERT:
 642                 // interpret this as if a backslash was typed
 643                 recordUndo(bv, Undo::ATOMIC);
 644                 mathcursor->interpret('\\');
 645                 break;
 646
 647         case LFUN_BREAKPARAGRAPH:
 648         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
 649         case LFUN_BREAKPARAGRAPH_SKIP:
 650                 argument = "\n";
 651                 // fall through
 652
 653 // FIXME: We probably should swap parts of "math-insert" and "self-insert"
 654 // handling such that "self-insert" works on "arbitrary stuff" too, and
 655 // math-insert only handles special math things like "matrix".
 656         case LFUN_INSERT_MATH:
 657                 recordUndo(bv, Undo::ATOMIC);
 658                 mathcursor->niceInsert(argument);
 659                 break;
 660
 661         case -1:
 662         case LFUN_SELFINSERT:
 663                 if (!argument.empty()) {
 664                         recordUndo(bv, Undo::ATOMIC);
 665                         if (argument.size() == 1)
 666                                 result = mathcursor->interpret(argument[0]) ? DispatchResult(true, true) : DispatchResult(false, FINISHED_RIGHT);
 667                         else
 668                                 mathcursor->insert(argument);
 669                 }
 670                 break;
 671
 672         case LFUN_ESCAPE:
 673                 if (mathcursor->selection())
 674                         mathcursor->selClear();
 675                 else
 676                         result = DispatchResult(false);
 677                 break;
 678
 679         case LFUN_INSET_TOGGLE:
 680                 mathcursor->insetToggle();
 681                 break;
 682
 683         case LFUN_DIALOG_SHOW:
 684                 result = DispatchResult(false);
 685                 break;
 686
 687         case LFUN_DIALOG_SHOW_NEW_INSET: {
 688                 string const & name = argument;
 689                 string data;
 690                 if (name == "ref") {
 691                         RefInset tmp(name);
 692                         data = tmp.createDialogStr(name);
 693                 }
 694
 695                 if (data.empty())
 696                         result = DispatchResult(false);
 697                 else
 698                         bv->owner()->getDialogs().show(name, data, 0);
 699                 break;
 700         }
 701
 702         case LFUN_INSET_APPLY: {
 703                 string const name = cmd.getArg(0);
 704                 InsetBase * base =
 705                         bv->owner()->getDialogs().getOpenInset(name);
 706
 707                 if (base) {
 708                         FuncRequest fr(bv, LFUN_INSET_MODIFY, cmd.argument);
 709                         result = base->dispatch(fr);
 710                 } else {
 711                         MathArray ar;
 712                         if (createMathInset_fromDialogStr(cmd.argument, ar)) {
 713                                 mathcursor->insert(ar);
 714                                 result = DispatchResult(true, true);
 715                         } else {
 716                                 result = DispatchResult(false);
 717                         }
 718                 }
 719                 break;
 720         }
 721
 722         case LFUN_WORD_REPLACE:
 723         case LFUN_WORD_FIND: {
 724                 result =
 725                         searchForward(cmd.view(), cmd.getArg(0), false, false)
 726                                 ? DispatchResult(true, true) : DispatchResult(false);
 727                 break;
 728         }
 729
 730         default:
 731                 result = DispatchResult(false);
 732         }
 733
 734         if (result == DispatchResult(true, true))
 735                 bv->update();
 736
 737         mathcursor->normalize();
 738         mathcursor->touch();
 739
 740         BOOST_ASSERT(mathcursor);
 741
 742         if (mathcursor->selection() || was_selection)
 743                 toggleInsetSelection(bv);
 744
 745         if (result.dispatched()) {
 746                 revealCodes(bv);
 747                 cmd.view()->stuffClipboard(mathcursor->grabSelection());
 748         } else {
 749                 releaseMathCursor(bv);
 750                 if (remove_inset)
 751                         bv->owner()->dispatch(FuncRequest(LFUN_DELETE));
 752         }
 753
 754         return result;  // original version
 755 }
 756
 757
 758 void InsetFormulaBase::revealCodes(BufferView * bv) const
 759 {
 760         if (!mathcursor)
 761                 return;
 762         bv->owner()->message(mathcursor->info());
 763
 764 #if 0
 765         // write something to the minibuffer
 766         // translate to latex
 767         mathcursor->markInsert();
 768         ostringstream os;
 769         write(NULL, os);
 770         string str = os.str();
 771         mathcursor->markErase();
 772         string::size_type pos = 0;
 773         string res;
 774         for (string::iterator it = str.begin(); it != str.end(); ++it) {
 775                 if (*it == '\n')
 776                         res += ' ';
 777                 else if (*it == '\0') {
 778                         res += "  -X-  ";
 779                         pos = it - str.begin();
 780                 }
 781                 else
 782                         res += *it;
 783         }
 784         if (pos > 30)
 785                 res = res.substr(pos - 30);
 786         if (res.size() > 60)
 787                 res = res.substr(0, 60);
 788         bv->owner()->message(res);
 789 #endif
 790 }
 791
 792
 793 InsetOld::Code InsetFormulaBase::lyxCode() const
 794 {
 795         return InsetOld::MATH_CODE;
 796 }
 797
 798
 799 int InsetFormulaBase::ylow() const
 800 {
 801         return yo_ - dim_.asc;
 802 }
 803
 804
 805 int InsetFormulaBase::yhigh() const
 806 {
 807         return yo_ + dim_.des;
 808 }
 809
 810
 811 int InsetFormulaBase::xlow() const
 812 {
 813         return xo_;
 814 }
 815
 816
 817 int InsetFormulaBase::xhigh() const
 818 {
 819         return xo_ + dim_.wid;
 820 }
 821
 822
 823 /////////////////////////////////////////////////////////////////////
 824
 825
 826 bool InsetFormulaBase::searchForward(BufferView * bv, string const & str,
 827                                      bool, bool)
 828 {
 829 #ifdef WITH_WARNINGS
 830 #warning pretty ugly
 831 #endif
 832         static InsetFormulaBase * lastformula = 0;
 833         static CursorBase current = CursorBase(ibegin(par().nucleus()));
 834         static MathArray ar;
 835         static string laststr;
 836
 837         if (lastformula != this || laststr != str) {
 838                 //lyxerr << "reset lastformula to " << this << endl;
 839                 lastformula = this;
 840                 laststr = str;
 841                 current = ibegin(par().nucleus());
 842                 ar.clear();
 843                 mathed_parse_cell(ar, str);
 844         } else {
 845                 increment(current);
 846         }
 847         //lyxerr << "searching '" << str << "' in " << this << ar << endl;
 848
 849         for (CursorBase it = current; it != iend(par().nucleus()); increment(it)) {
 850                 CursorSlice & top = it.back();
 851                 MathArray const & a = top.asMathInset()->cell(top.idx_);
 852                 if (a.matchpart(ar, top.pos_)) {
 853                         delete mathcursor;
 854                         mathcursor = new MathCursor(this, true);
 855                         //metrics(bv);
 856                         mathcursor->setSelection(it, ar.size());
 857                         current = it;
 858                         top.pos_ += ar.size();
 859                         bv->update();
 860                         return true;
 861                 }
 862         }
 863
 864         //lyxerr << "not found!" << endl;
 865         lastformula = 0;
 866         return false;
 867 }
 868
 869
 870 bool InsetFormulaBase::searchBackward(BufferView * bv, string const & what,
 871                                       bool a, bool b)
 872 {
 873         lyxerr[Debug::MATHED] << "searching backward not implemented in mathed" << endl;
 874         return searchForward(bv, what, a, b);
 875 }
 876
 877
 878 bool InsetFormulaBase::display() const
 879 {
 880         return par()->asHullInset() && par()->asHullInset()->display();
 881 }
 882
 883
 884 string InsetFormulaBase::selectionAsString() const
 885 {
 886         return mathcursor ? mathcursor->grabSelection() : string();
 887 }
 888
 889 /////////////////////////////////////////////////////////////////////
 890
 891
 892 void mathDispatchCreation(FuncRequest const & cmd, bool display)
 893 {
 894         BufferView * bv = cmd.view();
 895         // use selection if available..
 896         //string sel;
 897         //if (action == LFUN_MATH_IMPORT_SELECTION)
 898         //      sel = "";
 899         //else
 900
 901         string sel = bv->getLyXText()->selectionAsString(*bv->buffer(), false);
 902
 903         if (sel.empty()) {
 904                 InsetFormula * f = new InsetFormula(bv);
 905                 if (openNewInset(bv, f)) {
 906                         bv->fullCursor().innerInset()->
 907                                 dispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
 908                         // don't do that also for LFUN_MATH_MODE unless you want end up with
 909                         // always changing to mathrm when opening an inlined inset
 910                         // -- I really hate "LyXfunc overloading"...
 911                         if (display)
 912                                 f->dispatch(FuncRequest(bv, LFUN_MATH_DISPLAY));
 913                         f->dispatch(FuncRequest(bv, LFUN_INSERT_MATH, cmd.argument));
 914                 }
 915         } else {
 916                 // create a macro if we see "\\newcommand" somewhere, and an ordinary
 917                 // formula otherwise
 918                 InsetFormulaBase * f;
 919                 if (sel.find("\\newcommand") == string::npos &&
 920                                 sel.find("\\def") == string::npos)
 921                         f = new InsetFormula(sel);
 922                 else
 923                         f = new InsetFormulaMacro(sel);
 924                 bv->getLyXText()->cutSelection(true, false);
 925                 openNewInset(bv, f);
 926         }
 927         cmd.message(N_("Math editor mode"));
 928 }
 929
 930
 931 void mathDispatch(FuncRequest const & cmd)
 932 {
 933         BufferView * bv = cmd.view();
 934         if (!bv->available())
 935                 return;
 936
 937         switch (cmd.action) {
 938
 939                 case LFUN_MATH_DISPLAY:
 940                         mathDispatchCreation(cmd, true);
 941                         break;
 942
 943                 case LFUN_MATH_MODE:
 944                         mathDispatchCreation(cmd, false);
 945                         break;
 946
 947                 case LFUN_MATH_IMPORT_SELECTION:
 948                         mathDispatchCreation(cmd, false);
 949                         break;
 950
 951                 case LFUN_MATH_MACRO:
 952                         if (cmd.argument.empty())
 953                                 cmd.errorMessage(N_("Missing argument"));
 954                         else {
 955                                 string s = cmd.argument;
 956                                 string const s1 = token(s, ' ', 1);
 957                                 int const nargs = s1.empty() ? 0 : atoi(s1);
 958                                 string const s2 = token(s, ' ', 2);
 959                                 string const type = s2.empty() ? "newcommand" : s2;
 960                                 openNewInset(bv, new InsetFormulaMacro(token(s, ' ', 0), nargs, s2));
 961                         }
 962                         break;
 963
 964                 case LFUN_INSERT_MATH:
 965                 case LFUN_INSERT_MATRIX:
 966                 case LFUN_MATH_DELIM: {
 967                         InsetFormula * f = new InsetFormula(bv);
 968                         if (openNewInset(bv, f)) {
 969                                 UpdatableInset * inset = bv->fullCursor().innerInset();
 970                                 inset->dispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
 971                                 inset->dispatch(cmd);
 972                         }
 973                         break;
 974                 }
 975
 976                 default:
 977                         break;
 978         }
 979 }