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