src/mathed/formulabase.C

   1 /*
   2 *  File:        formulabase.C
   3 *  Purpose:     Implementation of common parts of the LyX  math insets
   4 *  Author:      Alejandro Aguilar Sierra <asierra@servidor.unam.mx>
   5 *  Created:     January 1996
   6 *
   7 *  Copyright: 1996-1998 Alejandro Aguilar Sierra
   8 *
   9 *  Version: 0.4, Lyx project.
  10 *
  11 *   You are free to use and modify this code under the terms of
  12 *   the GNU General Public Licence version 2 or later.
  13 */
  14
  15 #include <config.h>
  16
  17 #include "Lsstream.h"
  18 #include "support/LAssert.h"
  19 #include "formula.h"
  20 #include "formulamacro.h"
  21 #include "lyxrc.h"
  22 #include "funcrequest.h"
  23 #include "BufferView.h"
  24 #include "lyxtext.h"
  25 #include "gettext.h"
  26 #include "LaTeXFeatures.h"
  27 #include "debug.h"
  28 #include "math_support.h"
  29 #include "metricsinfo.h"
  30 #include "support/lstrings.h"
  31 #include "frontends/LyXView.h"
  32 #include "frontends/font_metrics.h"
  33 #include "frontends/mouse_state.h"
  34 #include "Lsstream.h"
  35 #include "math_arrayinset.h"
  36 #include "math_charinset.h"
  37 #include "math_deliminset.h"
  38 #include "math_cursor.h"
  39 #include "math_factory.h"
  40 #include "math_fontinset.h"
  41 #include "math_hullinset.h"
  42 #include "math_iterator.h"
  43 #include "math_macrotable.h"
  44 #include "math_parser.h"
  45 #include "math_pos.h"
  46 #include "math_spaceinset.h"
  47 #include "undo_funcs.h"
  48 #include "textpainter.h"
  49 #include "frontends/Dialogs.h"
  50 #include "intl.h"
  51 #include "ref_inset.h"
  52
  53 #include <fstream>
  54
  55 using std::endl;
  56 using std::ostream;
  57 using std::vector;
  58 using std::abs;
  59 using std::max;
  60
  61
  62 MathCursor * mathcursor = 0;
  63
  64 namespace {
  65
  66 // local global
  67 int first_x;
  68 int first_y;
  69
  70 bool openNewInset(BufferView * bv, UpdatableInset * new_inset)
  71 {
  72         if (!bv->insertInset(new_inset)) {
  73                 delete new_inset;
  74                 return false;
  75         }
  76         new_inset->localDispatch(FuncRequest(bv, LFUN_INSET_EDIT, "left"));
  77         return true;
  78 }
  79
  80
  81 } // namespace anon
  82
  83
  84
  85 InsetFormulaBase::InsetFormulaBase()
  86         : font_(), xo_(0), yo_(0)
  87 {
  88         // This is needed as long the math parser is not re-entrant
  89         initMath();
  90         //lyxerr << "sizeof MathInset: " << sizeof(MathInset) << "\n";
  91         //lyxerr << "sizeof MetricsInfo: " << sizeof(MetricsInfo) << "\n";
  92         //lyxerr << "sizeof MathCharInset: " << sizeof(MathCharInset) << "\n";
  93         //lyxerr << "sizeof LyXFont: " << sizeof(LyXFont) << "\n";
  94 }
  95
  96
  97 // simply scrap this function if you want
  98 void InsetFormulaBase::mutateToText()
  99 {
 100 #if 0
 101         // translate to latex
 102         ostringstream os;
 103         latex(NULL, os, false, false);
 104         string str = os.str();
 105
 106         // insert this text
 107         LyXText * lt = view_->getLyXText();
 108         string::const_iterator cit = str.begin();
 109         string::const_iterator end = str.end();
 110         for (; cit != end; ++cit)
 111                 view_->owner()->getIntl()->getTransManager().TranslateAndInsert(*cit, lt);
 112
 113         // remove ourselves
 114         //view_->owner()->dispatch(LFUN_ESCAPE);
 115 #endif
 116 }
 117
 118
 119 void InsetFormulaBase::handleFont
 120         (BufferView * bv, string const & arg, string const & font)
 121 {
 122         // this whole function is a hack and won't work for incremental font
 123         // changes...
 124         bv->lockedInsetStoreUndo(Undo::EDIT);
 125         if (mathcursor->par()->name() == font)
 126                 mathcursor->handleFont(font);
 127         else {
 128                 mathcursor->handleNest(createMathInset(font));
 129                 mathcursor->insert(arg);
 130         }
 131 }
 132
 133
 134 BufferView * InsetFormulaBase::view() const
 135 {
 136         return view_.lock().get();
 137 }
 138
 139
 140 void InsetFormulaBase::validate(LaTeXFeatures &) const
 141 {}
 142
 143
 144 void InsetFormulaBase::metrics(BufferView * bv, LyXFont const & f,
 145                                Dimension & /*dim*/) const
 146 {
 147         font_ = f;
 148         metrics(bv);
 149 }
 150
 151
 152 void InsetFormulaBase::metrics(BufferView * bv) const
 153 {
 154         if (bv)
 155                 view_ = bv->owner()->view();
 156         MetricsInfo mi;
 157         mi.base.bv    = bv;
 158         mi.base.style = LM_ST_TEXT;
 159         mi.base.font  = font_;
 160         mi.base.font.setColor(LColor::math);
 161         par()->metrics(mi);
 162 }
 163
 164
 165 string const InsetFormulaBase::editMessage() const
 166 {
 167         return _("Math editor mode");
 168 }
 169
 170
 171 void InsetFormulaBase::insetUnlock(BufferView * bv)
 172 {
 173         if (mathcursor) {
 174                 if (mathcursor->inMacroMode()) {
 175                         mathcursor->macroModeClose();
 176                         bv->updateInset(this);
 177                 }
 178                 releaseMathCursor(bv);
 179         }
 180         generatePreview();
 181         bv->updateInset(this);
 182 }
 183
 184
 185 void InsetFormulaBase::getCursor(BufferView &, int & x, int & y) const
 186 {
 187         mathcursor->getPos(x, y);
 188 }
 189
 190
 191 void InsetFormulaBase::getCursorPos(BufferView *, int & x, int & y) const
 192 {
 193         // calling metrics here destroys the cached xo,yo positions e.g. in
 194         // MathParboxinset. And it would be too expensive anyway...
 195         //metrics(bv);
 196         if (!mathcursor) {
 197                 lyxerr << "getCursorPos - should not happen";
 198                 x = y = 0;
 199                 return;
 200         }
 201         mathcursor->getPos(x, y);
 202         x = mathcursor->targetX();
 203         x -= xo_;
 204         y -= yo_;
 205         //lyxerr << "getCursorPos: " << x << ' ' << y << endl;
 206 }
 207
 208
 209 void InsetFormulaBase::fitInsetCursor(BufferView * bv) const
 210 {
 211         if (!mathcursor)
 212                 return;
 213         int x, y, asc, des;
 214         math_font_max_dim(font_, asc, des);
 215         getCursorPos(bv, x, y);
 216         //y += yo_;
 217         //lyxerr << "fitInsetCursor: x: " << x << " y: " << y << " yo: " << yo_ << endl;
 218         bv->fitLockedInsetCursor(x, y, asc, des);
 219 }
 220
 221
 222 void InsetFormulaBase::toggleInsetSelection(BufferView * bv)
 223 {
 224         if (mathcursor)
 225                 bv->updateInset(this);
 226 }
 227
 228
 229 vector<string> const InsetFormulaBase::getLabelList() const
 230 {
 231   return vector<string>();
 232 }
 233
 234
 235 dispatch_result InsetFormulaBase::lfunMouseRelease(FuncRequest const & cmd)
 236 {
 237         if (!mathcursor)
 238                 return UNDISPATCHED;
 239
 240         BufferView * bv = cmd.view();
 241         bv->updateInset(this);
 242         //lyxerr << "lfunMouseRelease: buttons: " << cmd.button() << endl;
 243
 244         if (cmd.button() == mouse_button::button3) {
 245                 // try to dispatch to enclosed insets first
 246                 if (mathcursor->dispatch(cmd) == UNDISPATCHED) {
 247                         // launch math panel for right mouse button
 248                         lyxerr << "lfunMouseRelease: undispatched: " << cmd.button() << endl;
 249                         bv->owner()->getDialogs().showMathPanel();
 250                 }
 251                 return DISPATCHED;
 252         }
 253
 254         if (cmd.button() == mouse_button::button2) {
 255                 mathcursor->selClear();
 256                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 257                 mathcursor->insert(asArray(bv->getClipboard()));
 258                 bv->updateInset(this);
 259                 return DISPATCHED;
 260         }
 261
 262         if (cmd.button() == mouse_button::button1) {
 263                 // try to dispatch to enclosed insets first
 264                 mathcursor->dispatch(cmd);
 265                 cmd.view()->stuffClipboard(mathcursor->grabSelection());
 266                 // try to set the cursor
 267                 //delete mathcursor;
 268                 //mathcursor = new MathCursor(this, x == 0);
 269                 //metrics(bv);
 270                 //mathcursor->setPos(x + xo_, y + yo_);
 271                 return DISPATCHED;
 272         }
 273
 274         return UNDISPATCHED;
 275 }
 276
 277
 278 dispatch_result InsetFormulaBase::lfunMousePress(FuncRequest const & cmd)
 279 {
 280         BufferView * bv = cmd.view();
 281         //lyxerr << "lfunMousePress: buttons: " << cmd.button() << endl;
 282
 283         if (!mathcursor || mathcursor->formula() != this) {
 284                 lyxerr[Debug::MATHED] << "re-create cursor" << endl;
 285                 releaseMathCursor(bv);
 286                 mathcursor = new MathCursor(this, cmd.x == 0);
 287                 metrics(bv);
 288                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 289         }
 290
 291         if (cmd.button() == mouse_button::button3) {
 292                 mathcursor->dispatch(cmd);
 293                 return DISPATCHED;
 294         }
 295
 296         if (cmd.button() == mouse_button::button1) {
 297                 first_x = cmd.x;
 298                 first_y = cmd.y;
 299                 mathcursor->selClear();
 300                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 301                 mathcursor->dispatch(cmd);
 302                 return DISPATCHED;
 303         }
 304
 305         bv->updateInset(this);
 306         return DISPATCHED;
 307 }
 308
 309
 310 dispatch_result InsetFormulaBase::lfunMouseMotion(FuncRequest const & cmd)
 311 {
 312         if (!mathcursor)
 313                 return DISPATCHED;
 314
 315         if (mathcursor->dispatch(FuncRequest(cmd)) != UNDISPATCHED)
 316                 return DISPATCHED;
 317
 318         // only select with button 1
 319         if (cmd.button() != mouse_button::button1)
 320                 return DISPATCHED;
 321
 322         if (abs(cmd.x - first_x) < 2 && abs(cmd.y - first_y) < 2)
 323                 return DISPATCHED;
 324
 325         first_x = cmd.x;
 326         first_y = cmd.y;
 327
 328         if (!mathcursor->selection())
 329                 mathcursor->selStart();
 330
 331         BufferView * bv = cmd.view();
 332         mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 333         bv->updateInset(this);
 334         return DISPATCHED;
 335 }
 336
 337
 338 dispatch_result InsetFormulaBase::localDispatch(FuncRequest const & cmd)
 339 {
 340         //lyxerr << "InsetFormulaBase::localDispatch: act: " << cmd.action
 341         //      << " arg: '" << cmd.argument
 342         //      << " x: '" << cmd.x
 343         //      << " y: '" << cmd.y
 344         //      << "' button: " << cmd.button() << endl;
 345
 346         BufferView * bv = cmd.view();
 347
 348         // delete empty mathbox (LFUN_BACKSPACE and LFUN_DELETE)
 349         bool remove_inset = false;
 350
 351         switch (cmd.action) {
 352                 case LFUN_INSET_EDIT:
 353                         lyxerr << "Called EDIT with '" << cmd.argument << "'\n";
 354                         if (!bv->lockInset(this))
 355                                 lyxerr << "Cannot lock math inset in edit call!\n";
 356                         releaseMathCursor(bv);
 357                         if (!cmd.argument.empty()) {
 358                                 mathcursor = new MathCursor(this, cmd.argument == "left");
 359                                 metrics(bv);
 360                         } else {
 361                                 mathcursor = new MathCursor(this, true);
 362                                 metrics(bv);
 363                                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 364                         }
 365                         // if that is removed, we won't get the magenta box when entering an
 366                         // inset for the first time
 367                         bv->updateInset(this);
 368                         return DISPATCHED;
 369
 370                 case LFUN_MOUSE_PRESS:
 371                         //lyxerr << "Mouse single press\n";
 372                         return lfunMousePress(cmd);
 373                 case LFUN_MOUSE_MOTION:
 374                         //lyxerr << "Mouse motion\n";
 375                         return lfunMouseMotion(cmd);
 376                 case LFUN_MOUSE_RELEASE:
 377                         //lyxerr << "Mouse single release\n";
 378                         return lfunMouseRelease(cmd);
 379                 case LFUN_MOUSE_DOUBLE:
 380                         //lyxerr << "Mouse double\n";
 381                         return localDispatch(FuncRequest(LFUN_WORDSEL));
 382                 default:
 383                         break;
 384         }
 385
 386         if (!mathcursor)
 387                 return UNDISPATCHED;
 388
 389         string argument    = cmd.argument;
 390         RESULT result      = DISPATCHED;
 391         bool sel           = false;
 392         bool was_macro     = mathcursor->inMacroMode();
 393         bool was_selection = mathcursor->selection();
 394
 395         mathcursor->normalize();
 396         mathcursor->touch();
 397
 398         switch (cmd.action) {
 399
 400         case LFUN_MATH_MUTATE:
 401         case LFUN_MATH_DISPLAY:
 402         case LFUN_MATH_NUMBER:
 403         case LFUN_MATH_NONUMBER:
 404         case LFUN_CELL_SPLIT:
 405         case LFUN_BREAKLINE:
 406         case LFUN_DELETE_LINE_FORWARD:
 407         case LFUN_INSERT_LABEL:
 408         case LFUN_MATH_EXTERN:
 409         case LFUN_TABULAR_FEATURE:
 410         case LFUN_PASTESELECTION:
 411         case LFUN_MATH_LIMITS:
 412                 bv->lockedInsetStoreUndo(Undo::EDIT);
 413                 mathcursor->dispatch(cmd);
 414                 break;
 415
 416         case LFUN_RIGHTSEL:
 417                 sel = true; // fall through...
 418         case LFUN_RIGHT:
 419                 result = mathcursor->right(sel) ? DISPATCHED : FINISHED_RIGHT;
 420                 //lyxerr << "calling scroll 20\n";
 421                 //scroll(bv, 20);
 422                 // write something to the minibuffer
 423                 //bv->owner()->message(mathcursor->info());
 424                 break;
 425
 426         case LFUN_LEFTSEL:
 427                 sel = true; // fall through
 428         case LFUN_LEFT:
 429                 result = mathcursor->left(sel) ? DISPATCHED : FINISHED;
 430                 break;
 431
 432         case LFUN_UPSEL:
 433                 sel = true; // fall through
 434         case LFUN_UP:
 435                 result = mathcursor->up(sel) ? DISPATCHED : FINISHED_UP;
 436                 break;
 437
 438         case LFUN_DOWNSEL:
 439                 sel = true; // fall through
 440         case LFUN_DOWN:
 441                 result = mathcursor->down(sel) ? DISPATCHED : FINISHED_DOWN;
 442                 break;
 443
 444         case LFUN_WORDSEL:
 445                 mathcursor->home(false);
 446                 mathcursor->end(true);
 447                 break;
 448
 449         case LFUN_UP_PARAGRAPHSEL:
 450         case LFUN_UP_PARAGRAPH:
 451         case LFUN_DOWN_PARAGRAPHSEL:
 452         case LFUN_DOWN_PARAGRAPH:
 453                 result = FINISHED;
 454                 break;
 455
 456         case LFUN_HOMESEL:
 457         case LFUN_WORDLEFTSEL:
 458                 sel = true; // fall through
 459         case LFUN_HOME:
 460         case LFUN_WORDLEFT:
 461                 result = mathcursor->home(sel) ? DISPATCHED : FINISHED;
 462                 break;
 463
 464         case LFUN_ENDSEL:
 465         case LFUN_WORDRIGHTSEL:
 466                 sel = true; // fall through
 467         case LFUN_END:
 468         case LFUN_WORDRIGHT:
 469                 result = mathcursor->end(sel) ? DISPATCHED : FINISHED_RIGHT;
 470                 break;
 471
 472         case LFUN_PRIORSEL:
 473         case LFUN_PRIOR:
 474         case LFUN_BEGINNINGBUFSEL:
 475         case LFUN_BEGINNINGBUF:
 476                 result = FINISHED;
 477                 break;
 478
 479         case LFUN_NEXTSEL:
 480         case LFUN_NEXT:
 481         case LFUN_ENDBUFSEL:
 482         case LFUN_ENDBUF:
 483                 result = FINISHED_RIGHT;
 484                 break;
 485
 486         case LFUN_CELL_FORWARD:
 487                 mathcursor->idxNext();
 488                 break;
 489
 490         case LFUN_CELL_BACKWARD:
 491                 mathcursor->idxPrev();
 492                 break;
 493
 494         case LFUN_DELETE_WORD_BACKWARD:
 495         case LFUN_BACKSPACE:
 496                 bv->lockedInsetStoreUndo(Undo::EDIT);
 497                 if (!mathcursor->backspace()) {
 498                         result = FINISHED;
 499                         remove_inset = true;
 500                 }
 501                 break;
 502
 503         case LFUN_DELETE_WORD_FORWARD:
 504         case LFUN_DELETE:
 505                 bv->lockedInsetStoreUndo(Undo::EDIT);
 506                 if (!mathcursor->erase()) {
 507                         result = FINISHED;
 508                         remove_inset = true;
 509                 }
 510                 break;
 511
 512         //    case LFUN_GETXY:
 513         //      sprintf(dispatch_buffer, "%d %d",);
 514         //      dispatch_result = dispatch_buffer;
 515         //      break;
 516         case LFUN_SETXY: {
 517                 lyxerr << "LFUN_SETXY broken!\n";
 518                 int x = 0;
 519                 int y = 0;
 520                 istringstream is(cmd.argument.c_str());
 521                 is >> x >> y;
 522                 mathcursor->setPos(x, y);
 523                 break;
 524         }
 525
 526         case LFUN_PASTE: {
 527                 int n = 0;
 528                 istringstream is(cmd.argument.c_str());
 529                 is >> n;
 530                 if (was_macro)
 531                         mathcursor->macroModeClose();
 532                 bv->lockedInsetStoreUndo(Undo::EDIT);
 533                 mathcursor->selPaste(n);
 534                 break;
 535         }
 536
 537         case LFUN_CUT:
 538                 bv->lockedInsetStoreUndo(Undo::DELETE);
 539                 mathcursor->selCut();
 540                 break;
 541
 542         case LFUN_COPY:
 543                 mathcursor->selCopy();
 544                 break;
 545
 546
 547         // Special casing for superscript in case of LyX handling
 548         // dead-keys:
 549         case LFUN_CIRCUMFLEX:
 550                 if (cmd.argument.empty()) {
 551                         // do superscript if LyX handles
 552                         // deadkeys
 553                         bv->lockedInsetStoreUndo(Undo::EDIT);
 554                         mathcursor->script(true);
 555                 }
 556                 break;
 557
 558         case LFUN_UMLAUT:
 559         case LFUN_ACUTE:
 560         case LFUN_GRAVE:
 561         case LFUN_BREVE:
 562         case LFUN_DOT:
 563         case LFUN_MACRON:
 564         case LFUN_CARON:
 565         case LFUN_TILDE:
 566         case LFUN_CEDILLA:
 567         case LFUN_CIRCLE:
 568         case LFUN_UNDERDOT:
 569         case LFUN_TIE:
 570         case LFUN_OGONEK:
 571         case LFUN_HUNG_UMLAUT:
 572                 break;
 573
 574         //  Math fonts
 575         case LFUN_BOLD:         handleFont(bv, cmd.argument, "mathbf"); break;
 576         case LFUN_SANS:         handleFont(bv, cmd.argument, "mathsf"); break;
 577         case LFUN_EMPH:         handleFont(bv, cmd.argument, "mathcal"); break;
 578         case LFUN_ROMAN:        handleFont(bv, cmd.argument, "mathrm"); break;
 579         case LFUN_CODE:         handleFont(bv, cmd.argument, "texttt"); break;
 580         case LFUN_FRAK:         handleFont(bv, cmd.argument, "mathfrak"); break;
 581         case LFUN_ITAL:         handleFont(bv, cmd.argument, "mathit"); break;
 582         case LFUN_NOUN:         handleFont(bv, cmd.argument, "mathbb"); break;
 583         case LFUN_FREEFONT_APPLY:  handleFont(bv, cmd.argument, "textrm"); break;
 584         case LFUN_DEFAULT:      handleFont(bv, cmd.argument, "textnormal"); break;
 585
 586         case LFUN_MATH_MODE:
 587                 if (mathcursor->currentMode() == MathInset::TEXT_MODE)
 588                         mathcursor->niceInsert(MathAtom(new MathHullInset("simple")));
 589                 else
 590                         handleFont(bv, cmd.argument, "textrm");
 591                 //bv->owner()->message(_("math text mode toggled"));
 592                 break;
 593
 594         case LFUN_MATH_SIZE:
 595 #if 0
 596                 if (!arg.empty()) {
 597                         bv->lockedInsetStoreUndo(Undo::EDIT);
 598                         mathcursor->setSize(arg);
 599                 }
 600 #endif
 601                 break;
 602
 603         case LFUN_INSERT_MATRIX: {
 604                 bv->lockedInsetStoreUndo(Undo::EDIT);
 605                 unsigned int m = 1;
 606                 unsigned int n = 1;
 607                 string v_align;
 608                 string h_align;
 609                 istringstream is(STRCONV(argument));
 610                 is >> m >> n >> v_align >> h_align;
 611                 m = max(1u, m);
 612                 n = max(1u, n);
 613                 v_align += 'c';
 614                 mathcursor->niceInsert(
 615                         MathAtom(new MathArrayInset("array", m, n, v_align[0], h_align)));
 616                 break;
 617         }
 618
 619         case LFUN_SUPERSCRIPT:
 620         case LFUN_SUBSCRIPT:
 621         {
 622                 bv->lockedInsetStoreUndo(Undo::EDIT);
 623                 mathcursor->script(cmd.action == LFUN_SUPERSCRIPT);
 624                 break;
 625         }
 626
 627         case LFUN_MATH_DELIM:
 628         {
 629                 //lyxerr << "formulabase::LFUN_MATH_DELIM, arg: '" << arg << "'\n";
 630                 string ls;
 631                 string rs = split(cmd.argument, ls, ' ');
 632                 // Reasonable default values
 633                 if (ls.empty())
 634                         ls = '(';
 635                 if (rs.empty())
 636                         rs = ')';
 637
 638                 bv->lockedInsetStoreUndo(Undo::EDIT);
 639                 mathcursor->handleNest(MathAtom(new MathDelimInset(ls, rs)));
 640                 break;
 641         }
 642
 643         case LFUN_SPACE_INSERT:
 644         case LFUN_MATH_SPACE:
 645                 bv->lockedInsetStoreUndo(Undo::EDIT);
 646                 mathcursor->insert(MathAtom(new MathSpaceInset(",")));
 647                 break;
 648
 649         case LFUN_UNDO:
 650                 bv->owner()->message(_("Invalid action in math mode!"));
 651                 break;
 652
 653
 654         case LFUN_EXEC_COMMAND:
 655                 result = UNDISPATCHED;
 656                 break;
 657
 658         case LFUN_INSET_ERT:
 659                 // interpret this as if a backslash was typed
 660                 bv->lockedInsetStoreUndo(Undo::EDIT);
 661                 mathcursor->interpret('\\');
 662                 break;
 663
 664         case LFUN_BREAKPARAGRAPH:
 665         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
 666         case LFUN_BREAKPARAGRAPH_SKIP:
 667                 argument = "\n";
 668                 // fall through
 669
 670 // FIXME: We probably should swap parts of "math-insert" and "self-insert"
 671 // handling such that "self-insert" works on "arbitrary stuff" too, and
 672 // math-insert only handles special math things like "matrix".
 673         case LFUN_INSERT_MATH:
 674                 bv->lockedInsetStoreUndo(Undo::EDIT);
 675                 mathcursor->niceInsert(argument);
 676                 break;
 677
 678         case -1:
 679         case LFUN_SELFINSERT:
 680                 if (!argument.empty()) {
 681                         bv->lockedInsetStoreUndo(Undo::EDIT);
 682                         if (argument.size() == 1)
 683                                 result = mathcursor->interpret(argument[0]) ? DISPATCHED : FINISHED_RIGHT;
 684                         else
 685                                 mathcursor->insert(asArray(argument));
 686                 }
 687                 break;
 688
 689         case LFUN_MATH_PANEL:
 690                 result = UNDISPATCHED;
 691                 break;
 692
 693         case LFUN_ESCAPE:
 694                 if (mathcursor->selection())
 695                         mathcursor->selClear();
 696                 else
 697                         result = UNDISPATCHED;
 698                 break;
 699
 700         case LFUN_INSET_TOGGLE:
 701                 mathcursor->insetToggle();
 702                 break;
 703
 704         case LFUN_DIALOG_SHOW_NEW_INSET: {
 705                 string const & name = argument;
 706                 string data;
 707                 if (name == "ref") {
 708                         RefInset tmp(name);
 709                         data = tmp.createDialogStr(name);
 710                 }
 711
 712                 if (data.empty())
 713                         result = UNDISPATCHED;
 714                 else {
 715                         bv->owner()->getDialogs().show(name, data, 0);
 716                 }
 717         }
 718         break;
 719
 720         case LFUN_INSET_APPLY: {
 721                 string const name = cmd.getArg(0);
 722                 InsetBase * base =
 723                         bv->owner()->getDialogs().getOpenInset(name);
 724
 725                 if (base) {
 726                         FuncRequest fr(bv, LFUN_INSET_MODIFY, cmd.argument);
 727                         result = base->localDispatch(fr);
 728                 } else {
 729                         MathArray ar;
 730                         if (createMathInset_fromDialogStr(cmd.argument, ar)) {
 731                                 mathcursor->insert(ar);
 732                                 result = DISPATCHED;
 733                         } else {
 734                                 result = UNDISPATCHED;
 735                         }
 736                 }
 737         }
 738         break;
 739
 740         default:
 741                 result = UNDISPATCHED;
 742         }
 743
 744         if (result == DISPATCHED)
 745                 bv->updateInset(this);
 746
 747         mathcursor->normalize();
 748         mathcursor->touch();
 749
 750         lyx::Assert(mathcursor);
 751
 752         if (mathcursor->selection() || was_selection)
 753                 toggleInsetSelection(bv);
 754
 755         if (result == DISPATCHED || result == DISPATCHED_NOUPDATE ||
 756             result == UNDISPATCHED) {
 757                 fitInsetCursor(bv);
 758                 revealCodes(bv);
 759                 cmd.view()->stuffClipboard(mathcursor->grabSelection());
 760         } else {
 761                 releaseMathCursor(bv);
 762                 bv->unlockInset(this);
 763                 if (remove_inset)
 764                         bv->owner()->dispatch(FuncRequest(LFUN_DELETE));
 765         }
 766
 767         return result;  // original version
 768 }
 769
 770
 771 void InsetFormulaBase::revealCodes(BufferView * bv) const
 772 {
 773         if (!mathcursor)
 774                 return;
 775         bv->owner()->message(mathcursor->info());
 776
 777 #if 0
 778         // write something to the minibuffer
 779         // translate to latex
 780         mathcursor->markInsert();
 781         ostringstream os;
 782         write(NULL, os);
 783         string str = os.str();
 784         mathcursor->markErase();
 785         string::size_type pos = 0;
 786         string res;
 787         for (string::iterator it = str.begin(); it != str.end(); ++it) {
 788                 if (*it == '\n')
 789                         res += ' ';
 790                 else if (*it == '\0') {
 791                         res += "  -X-  ";
 792                         pos = it - str.begin();
 793                 }
 794                 else
 795                         res += *it;
 796         }
 797         if (pos > 30)
 798                 res = res.substr(pos - 30);
 799         if (res.size() > 60)
 800                 res = res.substr(0, 60);
 801         bv->owner()->message(res);
 802 #endif
 803 }
 804
 805
 806 Inset::Code InsetFormulaBase::lyxCode() const
 807 {
 808         return Inset::MATH_CODE;
 809 }
 810
 811
 812 int InsetFormulaBase::ylow() const
 813 {
 814         return yo_ - ascent(view(), font_);
 815 }
 816
 817
 818 int InsetFormulaBase::yhigh() const
 819 {
 820         return yo_ + descent(view(), font_);
 821 }
 822
 823
 824 int InsetFormulaBase::xlow() const
 825 {
 826         return xo_;
 827 }
 828
 829
 830 int InsetFormulaBase::xhigh() const
 831 {
 832         return xo_ + width(view(), font_);
 833 }
 834
 835
 836 /////////////////////////////////////////////////////////////////////
 837
 838
 839 bool InsetFormulaBase::searchForward(BufferView * bv, string const & str,
 840                                      bool, bool)
 841 {
 842 #ifdef WITH_WARNINGS
 843 #warning pretty ugly
 844 #endif
 845         static InsetFormulaBase * lastformula = 0;
 846         static MathIterator current = MathIterator(ibegin(par().nucleus()));
 847         static MathArray ar;
 848         static string laststr;
 849
 850         if (lastformula != this || laststr != str) {
 851                 //lyxerr << "reset lastformula to " << this << "\n";
 852                 lastformula = this;
 853                 laststr = str;
 854                 current = ibegin(par().nucleus());
 855                 ar.clear();
 856                 mathed_parse_cell(ar, str);
 857         } else {
 858                 ++current;
 859         }
 860         //lyxerr << "searching '" << str << "' in " << this << ar << endl;
 861
 862         for (MathIterator it = current; it != iend(par().nucleus()); ++it) {
 863                 if (it.cell().matchpart(ar, it.back().pos_)) {
 864                         bv->unlockInset(bv->theLockingInset());
 865                         if (!bv->lockInset(this)) {
 866                                 lyxerr << "Cannot lock inset" << endl;
 867                                 return false;
 868                         }
 869                         delete mathcursor;
 870                         mathcursor = new MathCursor(this, true);
 871                         metrics(bv);
 872                         mathcursor->setSelection(it, ar.size());
 873                         current = it;
 874                         it.jump(ar.size());
 875                         bv->updateInset(this);
 876                         return true;
 877                 }
 878         }
 879
 880         //lyxerr << "not found!\n";
 881         lastformula = 0;
 882         return false;
 883 }
 884
 885
 886 bool InsetFormulaBase::searchBackward(BufferView * bv, string const & what,
 887                                       bool a, bool b)
 888 {
 889         lyxerr[Debug::MATHED] << "searching backward not implemented in mathed\n";
 890         return searchForward(bv, what, a, b);
 891 }
 892
 893
 894 bool InsetFormulaBase::display() const
 895 {
 896         return par()->asHullInset() && par()->asHullInset()->display();
 897 }
 898
 899
 900 string InsetFormulaBase::selectionAsString() const
 901 {
 902         return mathcursor ? mathcursor->grabSelection() : string();
 903 }
 904
 905 /////////////////////////////////////////////////////////////////////
 906
 907
 908 void mathDispatchCreation(FuncRequest const & cmd, bool display)
 909 {
 910         BufferView * bv = cmd.view();
 911         // use selection if available..
 912         //string sel;
 913         //if (action == LFUN_MATH_IMPORT_SELECTION)
 914         //      sel = "";
 915         //else
 916
 917         string sel = bv->getLyXText()->selectionAsString(bv->buffer(), false);
 918
 919         if (sel.empty()) {
 920                 InsetFormula * f = new InsetFormula(bv);
 921                 if (openNewInset(bv, f)) {
 922                         bv->theLockingInset()->
 923                                 localDispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
 924                         // don't do that also for LFUN_MATH_MODE unless you want end up with
 925                         // always changing to mathrm when opening an inlined inset
 926                         // -- I really hate "LyXfunc overloading"...
 927                         if (display)
 928                                 f->localDispatch(FuncRequest(bv, LFUN_MATH_DISPLAY));
 929                         f->localDispatch(FuncRequest(bv, LFUN_INSERT_MATH, cmd.argument));
 930                 }
 931         } else {
 932                 // create a macro if we see "\\newcommand" somewhere, and an ordinary
 933                 // formula otherwise
 934                 InsetFormulaBase * f;
 935                 if (sel.find("\\newcommand") == string::npos &&
 936                                 sel.find("\\def") == string::npos)
 937                         f = new InsetFormula(sel);
 938                 else
 939                         f = new InsetFormulaMacro(sel);
 940                 bv->getLyXText()->cutSelection(bv);
 941                 openNewInset(bv, f);
 942         }
 943         cmd.message(N_("Math editor mode"));
 944 }
 945
 946
 947 void mathDispatch(FuncRequest const & cmd)
 948 {
 949         BufferView * bv = cmd.view();
 950         if (!bv->available())
 951                 return;
 952
 953         switch (cmd.action) {
 954
 955                 case LFUN_MATH_DISPLAY:
 956                         mathDispatchCreation(cmd, true);
 957                         break;
 958
 959                 case LFUN_MATH_MODE:
 960                         mathDispatchCreation(cmd, false);
 961                         break;
 962
 963                 case LFUN_MATH_IMPORT_SELECTION:
 964                         mathDispatchCreation(cmd, false);
 965                         break;
 966
 967                 case LFUN_MATH_MACRO:
 968                         if (cmd.argument.empty())
 969                                 cmd.errorMessage(N_("Missing argument"));
 970                         else {
 971                                 string s = cmd.argument;
 972                                 string const s1 = token(s, ' ', 1);
 973                                 int const na = s1.empty() ? 0 : lyx::atoi(s1);
 974                                 openNewInset(bv, new InsetFormulaMacro(token(s, ' ', 0), na));
 975                         }
 976                         break;
 977
 978                 case LFUN_INSERT_MATH:
 979                 case LFUN_INSERT_MATRIX:
 980                 case LFUN_MATH_DELIM: {
 981                         InsetFormula * f = new InsetFormula(bv);
 982                         if (openNewInset(bv, f)) {
 983                                 bv->theLockingInset()->
 984                                         localDispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
 985                                 bv->theLockingInset()->localDispatch(cmd);
 986                         }
 987                         break;
 988                 }
 989
 990                 default:
 991                         break;
 992         }
 993 }