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