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 #include <fstream>
  17
  18 #include "Lsstream.h"
  19 #include "support/LAssert.h"
  20
  21
  22 #include "formula.h"
  23 #include "formulamacro.h"
  24 #include "lyxrc.h"
  25 #include "funcrequest.h"
  26 #include "BufferView.h"
  27 #include "lyxtext.h"
  28 #include "gettext.h"
  29 #include "LaTeXFeatures.h"
  30 #include "debug.h"
  31 #include "math_support.h"
  32 #include "metricsinfo.h"
  33 #include "support/lstrings.h"
  34 #include "frontends/LyXView.h"
  35 #include "frontends/font_metrics.h"
  36 #include "frontends/mouse_state.h"
  37 #include "Lsstream.h"
  38 #include "math_arrayinset.h"
  39 #include "math_charinset.h"
  40 #include "math_deliminset.h"
  41 #include "math_cursor.h"
  42 #include "math_factory.h"
  43 #include "math_fontinset.h"
  44 #include "math_hullinset.h"
  45 #include "math_iterator.h"
  46 #include "math_macrotable.h"
  47 #include "math_parser.h"
  48 #include "math_pos.h"
  49 #include "math_spaceinset.h"
  50 #include "undo_funcs.h"
  51 #include "textpainter.h"
  52 #include "frontends/Dialogs.h"
  53 #include "intl.h"
  54 #include "ref_inset.h"
  55
  56 using std::endl;
  57 using std::ostream;
  58 using std::vector;
  59 using std::abs;
  60 using std::max;
  61
  62 MathCursor * mathcursor = 0;
  63
  64
  65 namespace {
  66
  67 // local global
  68 int first_x;
  69 int first_y;
  70
  71
  72
  73 bool openNewInset(BufferView * bv, UpdatableInset * new_inset)
  74 {
  75         if (!bv->insertInset(new_inset)) {
  76                 delete new_inset;
  77                 return false;
  78         }
  79         new_inset->edit(bv, true);
  80         return true;
  81 }
  82
  83
  84 } // namespace anon
  85
  86
  87
  88 InsetFormulaBase::InsetFormulaBase()
  89         : font_(), xo_(0), yo_(0)
  90 {
  91         // This is needed as long the math parser is not re-entrant
  92         initMath();
  93         //lyxerr << "sizeof MathInset: " << sizeof(MathInset) << "\n";
  94         //lyxerr << "sizeof MetricsInfo: " << sizeof(MetricsInfo) << "\n";
  95         //lyxerr << "sizeof MathCharInset: " << sizeof(MathCharInset) << "\n";
  96         //lyxerr << "sizeof LyXFont: " << sizeof(LyXFont) << "\n";
  97 }
  98
  99
 100 // simply scrap this function if you want
 101 void InsetFormulaBase::mutateToText()
 102 {
 103 #if 0
 104         // translate to latex
 105         ostringstream os;
 106         latex(NULL, os, false, false);
 107         string str = os.str();
 108
 109         // insert this text
 110         LyXText * lt = view_->getLyXText();
 111         string::const_iterator cit = str.begin();
 112         string::const_iterator end = str.end();
 113         for (; cit != end; ++cit)
 114                 view_->owner()->getIntl()->getTransManager().TranslateAndInsert(*cit, lt);
 115
 116         // remove ourselves
 117         //view_->owner()->dispatch(LFUN_ESCAPE);
 118 #endif
 119 }
 120
 121
 122 void InsetFormulaBase::handleFont
 123         (BufferView * bv, string const & arg, string const & font)
 124 {
 125         // this whole function is a hack and won't work for incremental font
 126         // changes...
 127         bv->lockedInsetStoreUndo(Undo::EDIT);
 128         if (mathcursor->par()->name() == font)
 129                 mathcursor->handleFont(font);
 130         else {
 131                 mathcursor->handleNest(createMathInset(font));
 132                 mathcursor->insert(arg);
 133         }
 134 }
 135
 136
 137 BufferView * InsetFormulaBase::view() const
 138 {
 139         return view_.lock().get();
 140 }
 141
 142
 143 void InsetFormulaBase::validate(LaTeXFeatures &) const
 144 {}
 145
 146
 147 void InsetFormulaBase::metrics(BufferView * bv, LyXFont const & f) const
 148 {
 149         font_ = f;
 150         metrics(bv);
 151 }
 152
 153
 154 void InsetFormulaBase::metrics(BufferView * bv) const
 155 {
 156         if (bv)
 157                 view_ = bv->owner()->view();
 158         MetricsInfo mi;
 159         mi.base.style = LM_ST_TEXT;
 160         mi.base.font  = font_;
 161         mi.base.font.setColor(LColor::math);
 162         par()->metrics(mi);
 163 }
 164
 165
 166 string const InsetFormulaBase::editMessage() const
 167 {
 168         return _("Math editor mode");
 169 }
 170
 171
 172 void InsetFormulaBase::edit(BufferView * bv, int x, int y, mouse_button::state)
 173 {
 174         if (!bv->lockInset(this))
 175                 lyxerr[Debug::MATHED] << "Cannot lock inset!!!" << endl;
 176         releaseMathCursor(bv);
 177         mathcursor = new MathCursor(this, true);
 178         metrics(bv);
 179         mathcursor->setPos(x + xo_, y + yo_);
 180         // if that is removed, we won't get the magenta box when entering an
 181         // inset for the first time
 182         bv->updateInset(this);
 183 }
 184
 185
 186 void InsetFormulaBase::edit(BufferView * bv, bool front)
 187 {
 188         if (!bv->lockInset(this))
 189                 lyxerr << "Cannot lock math inset in edit call!\n";
 190         releaseMathCursor(bv);
 191         mathcursor = new MathCursor(this, front);
 192         metrics(bv);
 193         bv->updateInset(this);
 194 }
 195
 196
 197 void InsetFormulaBase::insetUnlock(BufferView * bv)
 198 {
 199         if (mathcursor) {
 200                 if (mathcursor->inMacroMode()) {
 201                         mathcursor->macroModeClose();
 202                         bv->updateInset(this);
 203                 }
 204                 releaseMathCursor(bv);
 205         }
 206         generatePreview();
 207         bv->updateInset(this);
 208 }
 209
 210
 211 void InsetFormulaBase::getCursor(BufferView &, int & x, int & y) const
 212 {
 213         mathcursor->getPos(x, y);
 214 }
 215
 216
 217 void InsetFormulaBase::getCursorPos(BufferView *, int & x, int & y) const
 218 {
 219         // calling metrics here destroys the cached xo,yo positions e.g. in
 220         // MathParboxinset. And it would be too expensive anyway...
 221         //metrics(bv);
 222         if (!mathcursor) {
 223                 lyxerr << "getCursorPos - should not happen";
 224                 x = y = 0;
 225                 return;
 226         }
 227         mathcursor->getPos(x, y);
 228         x = mathcursor->targetX();
 229         x -= xo_;
 230         y -= yo_;
 231         //lyxerr << "getCursorPos: " << x << ' ' << y << endl;
 232 }
 233
 234
 235 void InsetFormulaBase::fitInsetCursor(BufferView * bv) const
 236 {
 237         if (!mathcursor)
 238                 return;
 239         int x, y, asc, des;
 240         math_font_max_dim(font_, asc, des);
 241         getCursorPos(bv, x, y);
 242         //y += yo_;
 243         //lyxerr << "fitInsetCursor: x: " << x << " y: " << y << " yo: " << yo_ << endl;
 244         bv->fitLockedInsetCursor(x, y, asc, des);
 245 }
 246
 247
 248 void InsetFormulaBase::toggleInsetSelection(BufferView * bv)
 249 {
 250         if (mathcursor)
 251                 bv->updateInset(this);
 252 }
 253
 254
 255 vector<string> const InsetFormulaBase::getLabelList() const
 256 {
 257   return vector<string>();
 258 }
 259
 260
 261 dispatch_result InsetFormulaBase::lfunMouseRelease(FuncRequest const & cmd)
 262 {
 263         if (!mathcursor)
 264                 return UNDISPATCHED;
 265
 266         BufferView * bv = cmd.view();
 267         bv->updateInset(this);
 268         //lyxerr << "lfunMouseRelease: buttons: " << cmd.button() << endl;
 269
 270         if (cmd.button() == mouse_button::button3) {
 271                 // try to dispatch to enclosed insets first
 272                 if (mathcursor->dispatch(cmd) == UNDISPATCHED) {
 273                         // launch math panel for right mouse button
 274                         lyxerr << "lfunMouseRelease: undispatched: " << cmd.button() << endl;
 275                         bv->owner()->getDialogs().showMathPanel();
 276                 }
 277                 return DISPATCHED;
 278         }
 279
 280         if (cmd.button() == mouse_button::button2) {
 281                 mathcursor->selClear();
 282                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 283                 mathcursor->insert(asArray(bv->getClipboard()));
 284                 bv->updateInset(this);
 285                 return DISPATCHED;
 286         }
 287
 288         if (cmd.button() == mouse_button::button1) {
 289                 // try to dispatch to enclosed insets first
 290                 mathcursor->dispatch(cmd);
 291                 cmd.view()->stuffClipboard(mathcursor->grabSelection());
 292                 // try to set the cursor
 293                 //delete mathcursor;
 294                 //mathcursor = new MathCursor(this, x == 0);
 295                 //metrics(bv);
 296                 //mathcursor->setPos(x + xo_, y + yo_);
 297                 return DISPATCHED;
 298         }
 299
 300         return UNDISPATCHED;
 301 }
 302
 303
 304 dispatch_result InsetFormulaBase::lfunMousePress(FuncRequest const & cmd)
 305 {
 306         BufferView * bv = cmd.view();
 307         //lyxerr << "lfunMousePress: buttons: " << cmd.button() << endl;
 308
 309         if (!mathcursor || mathcursor->formula() != this) {
 310                 lyxerr[Debug::MATHED] << "re-create cursor" << endl;
 311                 releaseMathCursor(bv);
 312                 mathcursor = new MathCursor(this, cmd.x == 0);
 313                 metrics(bv);
 314                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 315         }
 316
 317         if (cmd.button() == mouse_button::button3) {
 318                 mathcursor->dispatch(cmd);
 319                 return DISPATCHED;
 320         }
 321
 322         if (cmd.button() == mouse_button::button1) {
 323                 first_x = cmd.x;
 324                 first_y = cmd.y;
 325                 mathcursor->selClear();
 326                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 327                 mathcursor->dispatch(cmd);
 328                 return DISPATCHED;
 329         }
 330
 331         bv->updateInset(this);
 332         return DISPATCHED;
 333 }
 334
 335
 336 dispatch_result InsetFormulaBase::lfunMouseMotion(FuncRequest const & cmd)
 337 {
 338         if (!mathcursor)
 339                 return DISPATCHED;
 340
 341         if (mathcursor->dispatch(FuncRequest(cmd)) != UNDISPATCHED)
 342                 return DISPATCHED;
 343
 344         // only select with button 1
 345         if (cmd.button() != mouse_button::button1)
 346                 return DISPATCHED;
 347
 348         if (abs(cmd.x - first_x) < 2 && abs(cmd.y - first_y) < 2)
 349                 return DISPATCHED;
 350
 351         first_x = cmd.x;
 352         first_y = cmd.y;
 353
 354         if (!mathcursor->selection())
 355                 mathcursor->selStart();
 356
 357         BufferView * bv = cmd.view();
 358         mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 359         bv->updateInset(this);
 360         return DISPATCHED;
 361 }
 362
 363
 364 dispatch_result InsetFormulaBase::localDispatch(FuncRequest const & cmd)
 365 {
 366         //lyxerr << "InsetFormulaBase::localDispatch: act: " << cmd.action
 367         //      << " arg: '" << cmd.argument
 368         //      << " x: '" << cmd.x
 369         //      << " y: '" << cmd.y
 370         //      << "' button: " << cmd.button() << endl;
 371
 372         // delete empty mathbox (LFUN_BACKSPACE and LFUN_DELETE)
 373         bool remove_inset = false;
 374
 375         switch (cmd.action) {
 376                 case LFUN_MOUSE_PRESS:
 377                         //lyxerr << "Mouse single press\n";
 378                         return lfunMousePress(cmd);
 379                 case LFUN_MOUSE_MOTION:
 380                         //lyxerr << "Mouse motion\n";
 381                         return lfunMouseMotion(cmd);
 382                 case LFUN_MOUSE_RELEASE:
 383                         //lyxerr << "Mouse single release\n";
 384                         return lfunMouseRelease(cmd);
 385                 case LFUN_MOUSE_DOUBLE:
 386                         //lyxerr << "Mouse double\n";
 387                         return localDispatch(FuncRequest(LFUN_WORDSEL));
 388                 default:
 389                         break;
 390         }
 391
 392         if (!mathcursor)
 393                 return UNDISPATCHED;
 394
 395         BufferView * bv    = cmd.view();
 396         string argument    = cmd.argument;
 397         RESULT result      = DISPATCHED;
 398         bool sel           = false;
 399         bool was_macro     = mathcursor->inMacroMode();
 400         bool was_selection = mathcursor->selection();
 401
 402         mathcursor->normalize();
 403         mathcursor->touch();
 404
 405         switch (cmd.action) {
 406
 407         case LFUN_MATH_MUTATE:
 408         case LFUN_MATH_DISPLAY:
 409         case LFUN_MATH_NUMBER:
 410         case LFUN_MATH_NONUMBER:
 411         case LFUN_CELL_SPLIT:
 412         case LFUN_BREAKLINE:
 413         case LFUN_DELETE_LINE_FORWARD:
 414         case LFUN_INSERT_LABEL:
 415         case LFUN_MATH_EXTERN:
 416         case LFUN_TABULAR_FEATURE:
 417         case LFUN_PASTESELECTION:
 418         case LFUN_MATH_LIMITS:
 419                 bv->lockedInsetStoreUndo(Undo::EDIT);
 420                 mathcursor->dispatch(cmd);
 421                 break;
 422
 423         case LFUN_RIGHTSEL:
 424                 sel = true; // fall through...
 425         case LFUN_RIGHT:
 426                 result = mathcursor->right(sel) ? DISPATCHED : FINISHED_RIGHT;
 427                 //lyxerr << "calling scroll 20\n";
 428                 //scroll(bv, 20);
 429                 // write something to the minibuffer
 430                 //bv->owner()->message(mathcursor->info());
 431                 break;
 432
 433         case LFUN_LEFTSEL:
 434                 sel = true; // fall through
 435         case LFUN_LEFT:
 436                 result = mathcursor->left(sel) ? DISPATCHED : FINISHED;
 437                 break;
 438
 439         case LFUN_UPSEL:
 440                 sel = true; // fall through
 441         case LFUN_UP:
 442                 result = mathcursor->up(sel) ? DISPATCHED : FINISHED_UP;
 443                 break;
 444
 445         case LFUN_DOWNSEL:
 446                 sel = true; // fall through
 447         case LFUN_DOWN:
 448                 result = mathcursor->down(sel) ? DISPATCHED : FINISHED_DOWN;
 449                 break;
 450
 451         case LFUN_WORDSEL:
 452                 mathcursor->home(false);
 453                 mathcursor->end(true);
 454                 break;
 455
 456         case LFUN_UP_PARAGRAPHSEL:
 457         case LFUN_UP_PARAGRAPH:
 458         case LFUN_DOWN_PARAGRAPHSEL:
 459         case LFUN_DOWN_PARAGRAPH:
 460                 result = FINISHED;
 461                 break;
 462
 463         case LFUN_HOMESEL:
 464         case LFUN_WORDLEFTSEL:
 465                 sel = true; // fall through
 466         case LFUN_HOME:
 467         case LFUN_WORDLEFT:
 468                 result = mathcursor->home(sel) ? DISPATCHED : FINISHED;
 469                 break;
 470
 471         case LFUN_ENDSEL:
 472         case LFUN_WORDRIGHTSEL:
 473                 sel = true; // fall through
 474         case LFUN_END:
 475         case LFUN_WORDRIGHT:
 476                 result = mathcursor->end(sel) ? DISPATCHED : FINISHED_RIGHT;
 477                 break;
 478
 479         case LFUN_PRIORSEL:
 480         case LFUN_PRIOR:
 481         case LFUN_BEGINNINGBUFSEL:
 482         case LFUN_BEGINNINGBUF:
 483                 result = FINISHED;
 484                 break;
 485
 486         case LFUN_NEXTSEL:
 487         case LFUN_NEXT:
 488         case LFUN_ENDBUFSEL:
 489         case LFUN_ENDBUF:
 490                 result = FINISHED_RIGHT;
 491                 break;
 492
 493         case LFUN_CELL_FORWARD:
 494                 mathcursor->idxNext();
 495                 break;
 496
 497         case LFUN_CELL_BACKWARD:
 498                 mathcursor->idxPrev();
 499                 break;
 500
 501         case LFUN_DELETE_WORD_BACKWARD:
 502         case LFUN_BACKSPACE:
 503                 bv->lockedInsetStoreUndo(Undo::EDIT);
 504                 if (!mathcursor->backspace()) {
 505                         result = FINISHED;
 506                         remove_inset = true;
 507                 }
 508                 break;
 509
 510         case LFUN_DELETE_WORD_FORWARD:
 511         case LFUN_DELETE:
 512                 bv->lockedInsetStoreUndo(Undo::EDIT);
 513                 if (!mathcursor->erase()) {
 514                         result = FINISHED;
 515                         remove_inset = true;
 516                 }
 517                 break;
 518
 519         //    case LFUN_GETXY:
 520         //      sprintf(dispatch_buffer, "%d %d",);
 521         //      dispatch_result = dispatch_buffer;
 522         //      break;
 523         case LFUN_SETXY: {
 524                 lyxerr << "LFUN_SETXY broken!\n";
 525                 int x = 0;
 526                 int y = 0;
 527                 istringstream is(cmd.argument.c_str());
 528                 is >> x >> y;
 529                 mathcursor->setPos(x, y);
 530                 break;
 531         }
 532
 533         case LFUN_PASTE: {
 534                 int n = 0;
 535                 istringstream is(cmd.argument.c_str());
 536                 is >> n;
 537                 if (was_macro)
 538                         mathcursor->macroModeClose();
 539                 bv->lockedInsetStoreUndo(Undo::EDIT);
 540                 mathcursor->selPaste(n);
 541                 break;
 542         }
 543
 544         case LFUN_CUT:
 545                 bv->lockedInsetStoreUndo(Undo::DELETE);
 546                 mathcursor->selCut();
 547                 break;
 548
 549         case LFUN_COPY:
 550                 mathcursor->selCopy();
 551                 break;
 552
 553
 554         // Special casing for superscript in case of LyX handling
 555         // dead-keys:
 556         case LFUN_CIRCUMFLEX:
 557                 if (cmd.argument.empty()) {
 558                         // do superscript if LyX handles
 559                         // deadkeys
 560                         bv->lockedInsetStoreUndo(Undo::EDIT);
 561                         mathcursor->script(true);
 562                 }
 563                 break;
 564
 565         case LFUN_UMLAUT:
 566         case LFUN_ACUTE:
 567         case LFUN_GRAVE:
 568         case LFUN_BREVE:
 569         case LFUN_DOT:
 570         case LFUN_MACRON:
 571         case LFUN_CARON:
 572         case LFUN_TILDE:
 573         case LFUN_CEDILLA:
 574         case LFUN_CIRCLE:
 575         case LFUN_UNDERDOT:
 576         case LFUN_TIE:
 577         case LFUN_OGONEK:
 578         case LFUN_HUNG_UMLAUT:
 579                 break;
 580
 581         //  Math fonts
 582         case LFUN_BOLD:         handleFont(bv, cmd.argument, "mathbf"); break;
 583         case LFUN_SANS:         handleFont(bv, cmd.argument, "mathsf"); break;
 584         case LFUN_EMPH:         handleFont(bv, cmd.argument, "mathcal"); break;
 585         case LFUN_ROMAN:        handleFont(bv, cmd.argument, "mathrm"); break;
 586         case LFUN_CODE:         handleFont(bv, cmd.argument, "texttt"); break;
 587         case LFUN_FRAK:         handleFont(bv, cmd.argument, "mathfrak"); break;
 588         case LFUN_ITAL:         handleFont(bv, cmd.argument, "mathit"); break;
 589         case LFUN_NOUN:         handleFont(bv, cmd.argument, "mathbb"); break;
 590         case LFUN_FREEFONT_APPLY:  handleFont(bv, cmd.argument, "textrm"); break;
 591         case LFUN_DEFAULT:      handleFont(bv, cmd.argument, "textnormal"); break;
 592
 593         case LFUN_MATH_MODE:
 594                 if (mathcursor->currentMode() == MathInset::TEXT_MODE)
 595                         mathcursor->niceInsert(MathAtom(new MathHullInset("simple")));
 596                 else
 597                         handleFont(bv, cmd.argument, "textrm");
 598                 //bv->owner()->message(_("math text mode toggled"));
 599                 break;
 600
 601         case LFUN_MATH_SIZE:
 602 #if 0
 603                 if (!arg.empty()) {
 604                         bv->lockedInsetStoreUndo(Undo::EDIT);
 605                         mathcursor->setSize(arg);
 606                 }
 607 #endif
 608                 break;
 609
 610         case LFUN_INSERT_MATRIX: {
 611                 bv->lockedInsetStoreUndo(Undo::EDIT);
 612                 unsigned int m = 1;
 613                 unsigned int n = 1;
 614                 string v_align;
 615                 string h_align;
 616                 istringstream is(STRCONV(argument));
 617                 is >> m >> n >> v_align >> h_align;
 618                 m = max(1u, m);
 619                 n = max(1u, n);
 620                 v_align += 'c';
 621                 mathcursor->niceInsert(
 622                         MathAtom(new MathArrayInset("array", m, n, v_align[0], h_align)));
 623                 break;
 624         }
 625
 626         case LFUN_SUPERSCRIPT:
 627         case LFUN_SUBSCRIPT:
 628         {
 629                 bv->lockedInsetStoreUndo(Undo::EDIT);
 630                 mathcursor->script(cmd.action == LFUN_SUPERSCRIPT);
 631                 break;
 632         }
 633
 634         case LFUN_MATH_DELIM:
 635         {
 636                 //lyxerr << "formulabase::LFUN_MATH_DELIM, arg: '" << arg << "'\n";
 637                 string ls;
 638                 string rs = split(cmd.argument, ls, ' ');
 639                 // Reasonable default values
 640                 if (ls.empty())
 641                         ls = '(';
 642                 if (rs.empty())
 643                         rs = ')';
 644
 645                 bv->lockedInsetStoreUndo(Undo::EDIT);
 646                 mathcursor->handleNest(MathAtom(new MathDelimInset(ls, rs)));
 647                 break;
 648         }
 649
 650         case LFUN_PROTECTEDSPACE:
 651         case LFUN_MATH_SPACE:
 652                 bv->lockedInsetStoreUndo(Undo::EDIT);
 653                 mathcursor->insert(MathAtom(new MathSpaceInset(",")));
 654                 break;
 655
 656         case LFUN_UNDO:
 657                 bv->owner()->message(_("Invalid action in math mode!"));
 658                 break;
 659
 660
 661         case LFUN_EXEC_COMMAND:
 662                 result = UNDISPATCHED;
 663                 break;
 664
 665         case LFUN_INSET_ERT:
 666                 // interpret this as if a backslash was typed
 667                 bv->lockedInsetStoreUndo(Undo::EDIT);
 668                 mathcursor->interpret('\\');
 669                 break;
 670
 671         case LFUN_BREAKPARAGRAPH:
 672         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
 673         case LFUN_BREAKPARAGRAPH_SKIP:
 674                 argument = "\n";
 675                 // fall through
 676
 677 // FIXME: We probably should swap parts of "math-insert" and "self-insert"
 678 // handling such that "self-insert" works on "arbitrary stuff" too, and
 679 // math-insert only handles special math things like "matrix".
 680         case LFUN_INSERT_MATH:
 681                 bv->lockedInsetStoreUndo(Undo::EDIT);
 682                 mathcursor->niceInsert(argument);
 683                 break;
 684
 685         case -1:
 686         case LFUN_SELFINSERT:
 687                 if (!argument.empty()) {
 688                         bv->lockedInsetStoreUndo(Undo::EDIT);
 689                         if (argument.size() == 1)
 690                                 result = mathcursor->interpret(argument[0]) ? DISPATCHED : FINISHED_RIGHT;
 691                         else
 692                                 mathcursor->insert(asArray(argument));
 693                 }
 694                 break;
 695
 696         case LFUN_MATH_PANEL:
 697                 result = UNDISPATCHED;
 698                 break;
 699
 700         case LFUN_ESCAPE:
 701                 if (mathcursor->selection())
 702                         mathcursor->selClear();
 703                 else
 704                         result = UNDISPATCHED;
 705                 break;
 706
 707         case LFUN_INSET_TOGGLE:
 708                 mathcursor->insetToggle();
 709                 break;
 710
 711         case LFUN_DIALOG_SHOW_NEW_INSET: {
 712                 string const & name = argument;
 713                 string data;
 714                 if (name == "ref") {
 715                         RefInset tmp(name);
 716                         data = tmp.createDialogStr(name);
 717                 }
 718
 719                 if (data.empty())
 720                         result = UNDISPATCHED;
 721                 else {
 722                         bv->owner()->getDialogs().show(name, data, 0);
 723                 }
 724         }
 725         break;
 726
 727         case LFUN_INSET_APPLY: {
 728                 string const name = cmd.getArg(0);
 729                 InsetBase * base =
 730                         bv->owner()->getDialogs().getOpenInset(name);
 731
 732                 if (base) {
 733                         FuncRequest fr(bv, LFUN_INSET_MODIFY, cmd.argument);
 734                         result = base->localDispatch(fr);
 735                 } else {
 736                         MathArray ar;
 737                         if (createMathInset_fromDialogStr(cmd.argument, ar)) {
 738                                 mathcursor->insert(ar);
 739                                 result = DISPATCHED;
 740                         } else {
 741                                 result = UNDISPATCHED;
 742                         }
 743                 }
 744         }
 745         break;
 746
 747         default:
 748                 result = UNDISPATCHED;
 749         }
 750
 751         if (result == DISPATCHED)
 752                 bv->updateInset(this);
 753
 754         mathcursor->normalize();
 755         mathcursor->touch();
 756
 757         lyx::Assert(mathcursor);
 758
 759         if (mathcursor->selection() || was_selection)
 760                 toggleInsetSelection(bv);
 761
 762         if (result == DISPATCHED || result == DISPATCHED_NOUPDATE ||
 763             result == UNDISPATCHED) {
 764                 fitInsetCursor(bv);
 765                 revealCodes(bv);
 766                 cmd.view()->stuffClipboard(mathcursor->grabSelection());
 767         } else {
 768                 releaseMathCursor(bv);
 769                 bv->unlockInset(this);
 770                 if (remove_inset)
 771                         bv->owner()->dispatch(FuncRequest(LFUN_DELETE));
 772         }
 773
 774         return result;  // original version
 775 }
 776
 777
 778 void InsetFormulaBase::revealCodes(BufferView * bv) const
 779 {
 780         if (!mathcursor)
 781                 return;
 782         bv->owner()->message(mathcursor->info());
 783
 784 #if 0
 785         // write something to the minibuffer
 786         // translate to latex
 787         mathcursor->markInsert();
 788         ostringstream os;
 789         write(NULL, os);
 790         string str = os.str();
 791         mathcursor->markErase();
 792         string::size_type pos = 0;
 793         string res;
 794         for (string::iterator it = str.begin(); it != str.end(); ++it) {
 795                 if (*it == '\n')
 796                         res += ' ';
 797                 else if (*it == '\0') {
 798                         res += "  -X-  ";
 799                         pos = it - str.begin();
 800                 }
 801                 else
 802                         res += *it;
 803         }
 804         if (pos > 30)
 805                 res = res.substr(pos - 30);
 806         if (res.size() > 60)
 807                 res = res.substr(0, 60);
 808         bv->owner()->message(res);
 809 #endif
 810 }
 811
 812
 813 Inset::Code InsetFormulaBase::lyxCode() const
 814 {
 815         return Inset::MATH_CODE;
 816 }
 817
 818
 819 int InsetFormulaBase::ylow() const
 820 {
 821         return yo_ - ascent(view(), font_);
 822 }
 823
 824
 825 int InsetFormulaBase::yhigh() const
 826 {
 827         return yo_ + descent(view(), font_);
 828 }
 829
 830
 831 int InsetFormulaBase::xlow() const
 832 {
 833         return xo_;
 834 }
 835
 836
 837 int InsetFormulaBase::xhigh() const
 838 {
 839         return xo_ + width(view(), font_);
 840 }
 841
 842
 843 /////////////////////////////////////////////////////////////////////
 844
 845
 846 bool InsetFormulaBase::searchForward(BufferView * bv, string const & str,
 847                                      bool, bool)
 848 {
 849 #ifdef WITH_WARNINGS
 850 #warning pretty ugly
 851 #endif
 852         static InsetFormulaBase * lastformula = 0;
 853         static MathIterator current = MathIterator(ibegin(par().nucleus()));
 854         static MathArray ar;
 855         static string laststr;
 856
 857         if (lastformula != this || laststr != str) {
 858                 //lyxerr << "reset lastformula to " << this << "\n";
 859                 lastformula = this;
 860                 laststr = str;
 861                 current = ibegin(par().nucleus());
 862                 ar.clear();
 863                 mathed_parse_cell(ar, str);
 864         } else {
 865                 ++current;
 866         }
 867         //lyxerr << "searching '" << str << "' in " << this << ar << endl;
 868
 869         for (MathIterator it = current; it != iend(par().nucleus()); ++it) {
 870                 if (it.cell().matchpart(ar, it.back().pos_)) {
 871                         bv->unlockInset(bv->theLockingInset());
 872                         if (!bv->lockInset(this)) {
 873                                 lyxerr << "Cannot lock inset" << endl;
 874                                 return false;
 875                         }
 876                         delete mathcursor;
 877                         mathcursor = new MathCursor(this, true);
 878                         metrics(bv);
 879                         mathcursor->setSelection(it, ar.size());
 880                         current = it;
 881                         it.jump(ar.size());
 882                         bv->updateInset(this);
 883                         return true;
 884                 }
 885         }
 886
 887         //lyxerr << "not found!\n";
 888         lastformula = 0;
 889         return false;
 890 }
 891
 892
 893 bool InsetFormulaBase::searchBackward(BufferView * bv, string const & what,
 894                                       bool a, bool b)
 895 {
 896         lyxerr[Debug::MATHED] << "searching backward not implemented in mathed\n";
 897         return searchForward(bv, what, a, b);
 898 }
 899
 900
 901 bool InsetFormulaBase::display() const
 902 {
 903         return par()->asHullInset() && par()->asHullInset()->display();
 904 }
 905
 906
 907 string InsetFormulaBase::selectionAsString() const
 908 {
 909         return mathcursor ? mathcursor->grabSelection() : string();
 910 }
 911
 912 /////////////////////////////////////////////////////////////////////
 913
 914
 915 void mathDispatchCreation(FuncRequest const & cmd, bool display)
 916 {
 917         BufferView * bv = cmd.view();
 918         // use selection if available..
 919         //string sel;
 920         //if (action == LFUN_MATH_IMPORT_SELECTION)
 921         //      sel = "";
 922         //else
 923
 924         string sel = bv->getLyXText()->selectionAsString(bv->buffer(), false);
 925
 926         if (sel.empty()) {
 927                 InsetFormula * f = new InsetFormula(bv);
 928                 if (openNewInset(bv, f)) {
 929                         bv->theLockingInset()->
 930                                 localDispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
 931                         // don't do that also for LFUN_MATH_MODE unless you want end up with
 932                         // always changing to mathrm when opening an inlined inset
 933                         // -- I really hate "LyXfunc overloading"...
 934                         if (display)
 935                                 f->localDispatch(FuncRequest(bv, LFUN_MATH_DISPLAY));
 936                         f->localDispatch(FuncRequest(bv, LFUN_INSERT_MATH, cmd.argument));
 937                 }
 938         } else {
 939                 // create a macro if we see "\\newcommand" somewhere, and an ordinary
 940                 // formula otherwise
 941                 InsetFormulaBase * f;
 942                 if (sel.find("\\newcommand") == string::npos &&
 943                                 sel.find("\\def") == string::npos)
 944                         f = new InsetFormula(sel);
 945                 else
 946                         f = new InsetFormulaMacro(sel);
 947                 bv->getLyXText()->cutSelection(bv);
 948                 openNewInset(bv, f);
 949         }
 950         cmd.message(N_("Math editor mode"));
 951 }
 952
 953
 954 void mathDispatch(FuncRequest const & cmd)
 955 {
 956         BufferView * bv = cmd.view();
 957         if (!bv->available())
 958                 return;
 959
 960         switch (cmd.action) {
 961
 962                 case LFUN_MATH_DISPLAY:
 963                         mathDispatchCreation(cmd, true);
 964                         break;
 965
 966                 case LFUN_MATH_MODE:
 967                         mathDispatchCreation(cmd, false);
 968                         break;
 969
 970                 case LFUN_MATH_IMPORT_SELECTION:
 971                         mathDispatchCreation(cmd, false);
 972                         break;
 973
 974                 case LFUN_MATH_MACRO:
 975                         if (cmd.argument.empty())
 976                                 cmd.errorMessage(N_("Missing argument"));
 977                         else {
 978                                 string s = cmd.argument;
 979                                 string const s1 = token(s, ' ', 1);
 980                                 int const na = s1.empty() ? 0 : lyx::atoi(s1);
 981                                 openNewInset(bv, new InsetFormulaMacro(token(s, ' ', 0), na));
 982                         }
 983                         break;
 984
 985                 case LFUN_INSERT_MATH:
 986                 case LFUN_INSERT_MATRIX:
 987                 case LFUN_MATH_DELIM: {
 988                         InsetFormula * f = new InsetFormula(bv);
 989                         if (openNewInset(bv, f)) {
 990                                 bv->theLockingInset()->
 991                                         localDispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
 992                                 bv->theLockingInset()->localDispatch(cmd);
 993                         }
 994                         break;
 995                 }
 996
 997                 default:
 998                         break;
 999         }
1000 }