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 #ifdef __GNUG__
  22 #pragma implementation
  23 #endif
  24
  25 #include "formula.h"
  26 #include "formulamacro.h"
  27 #include "lyxrc.h"
  28 #include "funcrequest.h"
  29 #include "BufferView.h"
  30 #include "lyxtext.h"
  31 #include "gettext.h"
  32 #include "LaTeXFeatures.h"
  33 #include "debug.h"
  34 #include "math_support.h"
  35 #include "math_metricsinfo.h"
  36 #include "support/lstrings.h"
  37 #include "frontends/LyXView.h"
  38 #include "frontends/font_metrics.h"
  39 #include "frontends/mouse_state.h"
  40 #include "Lsstream.h"
  41 #include "math_arrayinset.h"
  42 #include "math_charinset.h"
  43 #include "math_deliminset.h"
  44 #include "math_cursor.h"
  45 #include "math_factory.h"
  46 #include "math_fontinset.h"
  47 #include "math_hullinset.h"
  48 #include "math_iterator.h"
  49 #include "math_macrotable.h"
  50 #include "math_parser.h"
  51 #include "math_pos.h"
  52 #include "math_spaceinset.h"
  53 #include "undo_funcs.h"
  54 #include "textpainter.h"
  55 #include "frontends/Dialogs.h"
  56 #include "intl.h"
  57 #include "insets/insetcommandparams.h"
  58 #include "ref_inset.h"
  59
  60 using std::endl;
  61 using std::ostream;
  62 using std::vector;
  63 using std::abs;
  64 using std::max;
  65
  66 MathCursor * mathcursor = 0;
  67
  68
  69 namespace {
  70
  71 // local global
  72 int first_x;
  73 int first_y;
  74
  75
  76
  77 bool openNewInset(BufferView * bv, UpdatableInset * new_inset)
  78 {
  79         if (!bv->insertInset(new_inset)) {
  80                 delete new_inset;
  81                 return false;
  82         }
  83         new_inset->edit(bv, true);
  84         return true;
  85 }
  86
  87
  88 } // namespace anon
  89
  90
  91
  92 InsetFormulaBase::InsetFormulaBase()
  93         : font_(), xo_(0), yo_(0)
  94 {
  95         // This is needed as long the math parser is not re-entrant
  96         initMath();
  97         //lyxerr << "sizeof MathInset: " << sizeof(MathInset) << "\n";
  98         //lyxerr << "sizeof MathMetricsInfo: " << sizeof(MathMetricsInfo) << "\n";
  99         //lyxerr << "sizeof MathCharInset: " << sizeof(MathCharInset) << "\n";
 100         //lyxerr << "sizeof LyXFont: " << sizeof(LyXFont) << "\n";
 101 }
 102
 103
 104 // simply scrap this function if you want
 105 void InsetFormulaBase::mutateToText()
 106 {
 107 #if 0
 108         // translate to latex
 109         ostringstream os;
 110         latex(NULL, os, false, false);
 111         string str = os.str();
 112
 113         // insert this text
 114         LyXText * lt = view_->getLyXText();
 115         string::const_iterator cit = str.begin();
 116         string::const_iterator end = str.end();
 117         for (; cit != end; ++cit)
 118                 view_->owner()->getIntl()->getTransManager().TranslateAndInsert(*cit, lt);
 119
 120         // remove ourselves
 121         //view_->owner()->dispatch(LFUN_ESCAPE);
 122 #endif
 123 }
 124
 125
 126 void InsetFormulaBase::handleFont
 127         (BufferView * bv, string const & arg, string const & font)
 128 {
 129         bv->lockedInsetStoreUndo(Undo::EDIT);
 130         bool sel = mathcursor->selection();
 131         if (sel)
 132                 updateLocal(bv, true);
 133         mathcursor->handleNest(createMathInset(font));
 134         mathcursor->insert(arg);
 135         if (!sel)
 136                 updateLocal(bv, false);
 137 }
 138
 139
 140 // Check if uses AMS macros
 141 void InsetFormulaBase::validate(LaTeXFeatures &) const
 142 {}
 143
 144
 145 void InsetFormulaBase::metrics(BufferView * bv, LyXFont const & f) const
 146 {
 147         font_ = f;
 148         metrics(bv);
 149 }
 150
 151
 152 void InsetFormulaBase::metrics(BufferView * bv) const
 153 {
 154         if (bv)
 155                 view_ = bv->owner()->view();
 156         MathMetricsInfo mi;
 157         mi.base.style = LM_ST_TEXT;
 158         mi.base.font  = font_;
 159         mi.base.font.setColor(LColor::math);
 160         par()->metrics(mi);
 161 }
 162
 163
 164 string const InsetFormulaBase::editMessage() const
 165 {
 166         return _("Math editor mode");
 167 }
 168
 169
 170 void InsetFormulaBase::edit(BufferView * bv, int x, int y, mouse_button::state)
 171 {
 172         if (!bv->lockInset(this))
 173                 lyxerr[Debug::MATHED] << "Cannot lock inset!!!" << endl;
 174         releaseMathCursor(bv);
 175         mathcursor = new MathCursor(this, true);
 176         metrics(bv);
 177         mathcursor->setPos(x + xo_, y + yo_);
 178         // if that is removed, we won't get the magenta box when entering an
 179         // inset for the first time
 180         bv->updateInset(this, false);
 181 }
 182
 183
 184 void InsetFormulaBase::edit(BufferView * bv, bool front)
 185 {
 186         if (!bv->lockInset(this))
 187                 lyxerr << "Cannot lock math inset in edit call!\n";
 188         releaseMathCursor(bv);
 189         mathcursor = new MathCursor(this, front);
 190         metrics(bv);
 191         bv->updateInset(this, false);
 192 }
 193
 194
 195 void InsetFormulaBase::insetUnlock(BufferView * bv)
 196 {
 197         if (mathcursor) {
 198                 if (mathcursor->inMacroMode()) {
 199                         mathcursor->macroModeClose();
 200                         updateLocal(bv, true);
 201                 }
 202                 releaseMathCursor(bv);
 203         }
 204         generatePreview();
 205         bv->updateInset(this, false);
 206 }
 207
 208
 209 void InsetFormulaBase::getCursorPos(BufferView *, int & x, int & y) const
 210 {
 211         // calling metrics here destroys the cached xo,yo positions e.g. in
 212         // MathParboxinset. And it would be too expensive anyway...
 213         //metrics(bv);
 214         if (!mathcursor) {
 215                 lyxerr << "getCursorPos - should not happen";
 216                 x = y = 0;
 217                 return;
 218         }
 219         mathcursor->getPos(x, y);
 220         x = mathcursor->targetX();
 221         x -= xo_;
 222         y -= yo_;
 223         //lyxerr << "getCursorPos: " << x << " " << y << "\n";
 224 }
 225
 226
 227 void InsetFormulaBase::toggleInsetCursor(BufferView * bv)
 228 {
 229         //lyxerr << "toggleInsetCursor: " << isCursorVisible() << "\n";
 230         if (isCursorVisible())
 231                 hideInsetCursor(bv);
 232         else
 233                 showInsetCursor(bv);
 234 }
 235
 236
 237 void InsetFormulaBase::showInsetCursor(BufferView * bv, bool)
 238 {
 239         if (isCursorVisible())
 240                 return;
 241         fitInsetCursor(bv);
 242         int x, y, asc, des;
 243         mathcursor->getPos(x, y);
 244         math_font_max_dim(font_, asc, des);
 245         bv->showLockedInsetCursor(x, y - yo_, asc, des);
 246         setCursorVisible(true);
 247         //lyxerr << "showInsetCursor: " << x << " " << y << "\n";
 248 }
 249
 250
 251 void InsetFormulaBase::hideInsetCursor(BufferView * bv)
 252 {
 253         if (!isCursorVisible())
 254                 return;
 255         bv->hideLockedInsetCursor();
 256         setCursorVisible(false);
 257         //lyxerr << "hideInsetCursor: \n";
 258 }
 259
 260
 261 void InsetFormulaBase::fitInsetCursor(BufferView * bv) const
 262 {
 263         if (!mathcursor)
 264                 return;
 265         int x, y, asc, des;
 266         math_font_max_dim(font_, asc, des);
 267         getCursorPos(bv, x, y);
 268         //y += yo_;
 269         //lyxerr << "fitInsetCursor: x: " << x << " y: " << y << " yo: " << yo_ << "\n";
 270         bv->fitLockedInsetCursor(x, y, asc, des);
 271 }
 272
 273
 274 void InsetFormulaBase::toggleInsetSelection(BufferView * bv)
 275 {
 276         if (mathcursor)
 277                 bv->updateInset(this, false);
 278 }
 279
 280
 281 vector<string> const InsetFormulaBase::getLabelList() const
 282 {
 283   return vector<string>();
 284 }
 285
 286
 287 void InsetFormulaBase::updateLocal(BufferView * bv, bool dirty)
 288 {
 289         bv->updateInset(this, dirty);
 290 }
 291
 292
 293 Inset::RESULT InsetFormulaBase::lfunMouseRelease(FuncRequest const & cmd)
 294 {
 295         if (!mathcursor)
 296                 return UNDISPATCHED;
 297
 298         BufferView * bv = cmd.view();
 299         hideInsetCursor(bv);
 300         showInsetCursor(bv);
 301         bv->updateInset(this, true);
 302         //lyxerr << "lfunMouseRelease: buttons: " << cmd.button() << "\n";
 303
 304         if (cmd.button() == mouse_button::button3) {
 305                 // try to dispatch to enclosed insets first
 306                 if (mathcursor->dispatch(cmd) == MathInset::UNDISPATCHED) {
 307                         // launch math panel for right mouse button
 308                         bv->owner()->getDialogs().showMathPanel();
 309                 }
 310                 return DISPATCHED;
 311         }
 312
 313         if (cmd.button() == mouse_button::button2) {
 314                 mathcursor->selClear();
 315                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 316                 mathcursor->insert(asArray(bv->getClipboard()));
 317                 bv->updateInset(this, true);
 318                 return DISPATCHED;
 319         }
 320
 321         if (cmd.button() == mouse_button::button1) {
 322                 // try to dispatch to enclosed insets first
 323                 mathcursor->dispatch(cmd);
 324                 // try to set the cursor
 325                 //delete mathcursor;
 326                 //mathcursor = new MathCursor(this, x == 0);
 327                 //metrics(bv);
 328                 //mathcursor->setPos(x + xo_, y + yo_);
 329                 return DISPATCHED;
 330         }
 331
 332         return UNDISPATCHED;
 333 }
 334
 335
 336 Inset::RESULT InsetFormulaBase::lfunMousePress(FuncRequest const & cmd)
 337 {
 338         BufferView * bv = cmd.view();
 339         releaseMathCursor(bv);
 340         mathcursor = new MathCursor(this, cmd.x == 0);
 341         //lyxerr << "lfunMousePress: buttons: " << cmd.button() << "\n";
 342
 343         if (cmd.button() == mouse_button::button3) {
 344                 mathcursor->dispatch(cmd);
 345                 return DISPATCHED;
 346         }
 347
 348         if (cmd.button() == mouse_button::button1) {
 349                 // just set the cursor here
 350                 //lyxerr << "setting cursor\n";
 351                 metrics(bv);
 352                 first_x = cmd.x;
 353                 first_y = cmd.y;
 354                 mathcursor->selClear();
 355                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 356                 mathcursor->dispatch(cmd);
 357                 return DISPATCHED;
 358         }
 359
 360         bv->updateInset(this, false);
 361         return DISPATCHED;
 362 }
 363
 364
 365 Inset::RESULT InsetFormulaBase::lfunMouseMotion(FuncRequest const & cmd)
 366 {
 367         if (!mathcursor)
 368                 return DISPATCHED;
 369
 370         if (mathcursor->dispatch(FuncRequest(cmd)) != MathInset::UNDISPATCHED)
 371                 return DISPATCHED;
 372
 373         // only select with button 1
 374         if (cmd.button() != mouse_button::button1)
 375                 return DISPATCHED;
 376
 377         if (abs(cmd.x - first_x) < 2 && abs(cmd.y - first_y) < 2)
 378                 return DISPATCHED;
 379
 380         first_x = cmd.x;
 381         first_y = cmd.y;
 382
 383         if (!mathcursor->selection())
 384                 mathcursor->selStart();
 385
 386         BufferView * bv = cmd.view();
 387         hideInsetCursor(bv);
 388         mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 389         showInsetCursor(bv);
 390         bv->updateInset(this, false);
 391         return DISPATCHED;
 392 }
 393
 394
 395 Inset::RESULT InsetFormulaBase::localDispatch(FuncRequest const & cmd)
 396 {
 397         //lyxerr << "InsetFormulaBase::localDispatch: act: " << cmd.action
 398         //      << " arg: '" << cmd.argument
 399         //      << " x: '" << cmd.x
 400         //      << " y: '" << cmd.y
 401         //      << "' button: " << cmd.button() << "\n";
 402
 403         switch (cmd.action) {
 404                 case LFUN_MOUSE_PRESS:
 405                         return lfunMousePress(cmd);
 406                 case LFUN_MOUSE_MOTION:
 407                         return lfunMouseMotion(cmd);
 408                 case LFUN_MOUSE_RELEASE:
 409                         return lfunMouseRelease(cmd);
 410                 case LFUN_MOUSE_DOUBLE:
 411                         //lyxerr << "Mouse double\n";
 412                         return localDispatch(FuncRequest(LFUN_WORDSEL));
 413                 default:
 414                         break;
 415         }
 416
 417         if (!mathcursor)
 418                 return UNDISPATCHED;
 419
 420         BufferView * bv    = cmd.view();
 421         string argument    = cmd.argument;
 422         RESULT result      = DISPATCHED;
 423         bool sel           = false;
 424         bool was_macro     = mathcursor->inMacroMode();
 425         bool was_selection = mathcursor->selection();
 426
 427         hideInsetCursor(bv);
 428
 429         mathcursor->normalize();
 430         mathcursor->touch();
 431
 432         switch (cmd.action) {
 433
 434         case LFUN_MATH_MUTATE:
 435         case LFUN_MATH_DISPLAY:
 436         case LFUN_MATH_NUMBER:
 437         case LFUN_MATH_NONUMBER:
 438         case LFUN_TABINSERT:
 439         case LFUN_BREAKLINE:
 440         case LFUN_DELETE_LINE_FORWARD:
 441         case LFUN_INSERT_LABEL:
 442         case LFUN_MATH_EXTERN:
 443         case LFUN_TABULAR_FEATURE:
 444         case LFUN_PASTESELECTION:
 445         case LFUN_MATH_LIMITS:
 446                 bv->lockedInsetStoreUndo(Undo::EDIT);
 447                 mathcursor->dispatch(cmd);
 448                 updateLocal(bv, true);
 449                 break;
 450
 451         case LFUN_RIGHTSEL:
 452                 sel = true; // fall through...
 453         case LFUN_RIGHT:
 454                 result = mathcursor->right(sel) ? DISPATCHED : FINISHED_RIGHT;
 455                 //lyxerr << "calling scroll 20\n";
 456                 //scroll(bv, 20);
 457                 updateLocal(bv, false);
 458                 // write something to the minibuffer
 459                 //bv->owner()->message(mathcursor->info());
 460                 break;
 461
 462         case LFUN_LEFTSEL:
 463                 sel = true; // fall through
 464         case LFUN_LEFT:
 465                 result = mathcursor->left(sel) ? DISPATCHED : FINISHED;
 466                 updateLocal(bv, false);
 467                 break;
 468
 469         case LFUN_UPSEL:
 470                 sel = true; // fall through
 471         case LFUN_UP:
 472                 result = mathcursor->up(sel) ? DISPATCHED : FINISHED_UP;
 473                 updateLocal(bv, false);
 474                 break;
 475
 476         case LFUN_DOWNSEL:
 477                 sel = true; // fall through
 478         case LFUN_DOWN:
 479                 result = mathcursor->down(sel) ? DISPATCHED : FINISHED_DOWN;
 480                 updateLocal(bv, false);
 481                 break;
 482
 483         case LFUN_WORDSEL:
 484                 mathcursor->home(false);
 485                 mathcursor->end(true);
 486                 updateLocal(bv, false);
 487                 break;
 488
 489         case LFUN_HOMESEL:
 490         case LFUN_WORDLEFTSEL:
 491                 sel = true; // fall through
 492         case LFUN_HOME:
 493         case LFUN_WORDLEFT:
 494                 result = mathcursor->home(sel) ? DISPATCHED : FINISHED;
 495                 updateLocal(bv, false);
 496                 break;
 497
 498         case LFUN_ENDSEL:
 499         case LFUN_WORDRIGHTSEL:
 500                 sel = true; // fall through
 501         case LFUN_END:
 502         case LFUN_WORDRIGHT:
 503                 result = mathcursor->end(sel) ? DISPATCHED : FINISHED_RIGHT;
 504                 updateLocal(bv, false);
 505                 break;
 506
 507         case LFUN_PRIORSEL:
 508         case LFUN_PRIOR:
 509         case LFUN_BEGINNINGBUFSEL:
 510         case LFUN_BEGINNINGBUF:
 511                 result = FINISHED_UP;
 512                 updateLocal(bv, false);
 513                 break;
 514
 515         case LFUN_NEXTSEL:
 516         case LFUN_NEXT:
 517         case LFUN_ENDBUFSEL:
 518         case LFUN_ENDBUF:
 519                 result = FINISHED_DOWN;
 520                 updateLocal(bv, false);
 521                 break;
 522
 523         case LFUN_TAB:
 524                 mathcursor->idxNext();
 525                 updateLocal(bv, false);
 526                 break;
 527
 528         case LFUN_SHIFT_TAB:
 529                 mathcursor->idxPrev();
 530                 updateLocal(bv, false);
 531                 break;
 532
 533         case LFUN_DELETE_WORD_BACKWARD:
 534         case LFUN_BACKSPACE:
 535                 bv->lockedInsetStoreUndo(Undo::DELETE);
 536                 mathcursor->backspace();
 537                 updateLocal(bv, true);
 538                 break;
 539
 540         case LFUN_DELETE_WORD_FORWARD:
 541         case LFUN_DELETE:
 542                 bv->lockedInsetStoreUndo(Undo::DELETE);
 543                 mathcursor->erase();
 544                 bv->updateInset(this, true);
 545                 break;
 546
 547         //    case LFUN_GETXY:
 548         //      sprintf(dispatch_buffer, "%d %d",);
 549         //      dispatch_result = dispatch_buffer;
 550         //      break;
 551         case LFUN_SETXY: {
 552                 lyxerr << "LFUN_SETXY broken!\n";
 553                 int x = 0;
 554                 int y = 0;
 555                 istringstream is(cmd.argument.c_str());
 556                 is >> x >> y;
 557                 mathcursor->setPos(x, y);
 558                 updateLocal(bv, false);
 559                 break;
 560         }
 561
 562         case LFUN_PASTE:
 563                 if (was_macro)
 564                         mathcursor->macroModeClose();
 565                 bv->lockedInsetStoreUndo(Undo::EDIT);
 566                 mathcursor->selPaste();
 567                 updateLocal(bv, true);
 568                 break;
 569
 570         case LFUN_CUT:
 571                 bv->lockedInsetStoreUndo(Undo::DELETE);
 572                 mathcursor->selCut();
 573                 updateLocal(bv, true);
 574                 break;
 575
 576         case LFUN_COPY:
 577                 mathcursor->selCopy();
 578                 break;
 579
 580
 581         // Special casing for superscript in case of LyX handling
 582         // dead-keys:
 583         case LFUN_CIRCUMFLEX:
 584                 if (cmd.argument.empty()) {
 585                         // do superscript if LyX handles
 586                         // deadkeys
 587                         bv->lockedInsetStoreUndo(Undo::EDIT);
 588                         mathcursor->script(true);
 589                         updateLocal(bv, true);
 590                 }
 591                 break;
 592
 593         case LFUN_UMLAUT:
 594         case LFUN_ACUTE:
 595         case LFUN_GRAVE:
 596         case LFUN_BREVE:
 597         case LFUN_DOT:
 598         case LFUN_MACRON:
 599         case LFUN_CARON:
 600         case LFUN_TILDE:
 601         case LFUN_CEDILLA:
 602         case LFUN_CIRCLE:
 603         case LFUN_UNDERDOT:
 604         case LFUN_TIE:
 605         case LFUN_OGONEK:
 606         case LFUN_HUNG_UMLAUT:
 607                 break;
 608
 609         //  Math fonts
 610         case LFUN_GREEK_TOGGLE: handleFont(bv, cmd.argument, "lyxgreek"); break;
 611         case LFUN_BOLD:         handleFont(bv, cmd.argument, "textbf"); break;
 612         case LFUN_SANS:         handleFont(bv, cmd.argument, "textsf"); break;
 613         case LFUN_EMPH:         handleFont(bv, cmd.argument, "mathcal"); break;
 614         case LFUN_ROMAN:        handleFont(bv, cmd.argument, "mathrm"); break;
 615         case LFUN_CODE:         handleFont(bv, cmd.argument, "texttt"); break;
 616         case LFUN_FRAK:         handleFont(bv, cmd.argument, "mathfrak"); break;
 617         case LFUN_ITAL:         handleFont(bv, cmd.argument, "mathit"); break;
 618         case LFUN_NOUN:         handleFont(bv, cmd.argument, "mathbb"); break;
 619         case LFUN_FREE:         handleFont(bv, cmd.argument, "textrm"); break;
 620         case LFUN_DEFAULT:      handleFont(bv, cmd.argument, "textnormal"); break;
 621
 622         case LFUN_GREEK:
 623                 handleFont(bv, cmd.argument, "lyxgreek1");
 624                 if (cmd.argument.size())
 625                         mathcursor->insert(asArray(cmd.argument));
 626                 break;
 627
 628         case LFUN_MATH_MODE:
 629                 if (mathcursor->currentMode())
 630                         handleFont(bv, cmd.argument, "textrm");
 631                 else {
 632                         mathcursor->niceInsert(MathAtom(new MathHullInset("simple")));
 633                         updateLocal(bv, true);
 634                 }
 635                 //bv->owner()->message(_("math text mode toggled"));
 636                 break;
 637
 638         case LFUN_MATH_SIZE:
 639 #if 0
 640                 if (!arg.empty()) {
 641                         bv->lockedInsetStoreUndo(Undo::EDIT);
 642                         mathcursor->setSize(arg);
 643                         updateLocal(bv, true);
 644                 }
 645 #endif
 646                 break;
 647
 648         case LFUN_INSERT_MATRIX: {
 649                 bv->lockedInsetStoreUndo(Undo::EDIT);
 650                 unsigned int m = 1;
 651                 unsigned int n = 1;
 652                 string v_align;
 653                 string h_align;
 654                 istringstream is(argument);
 655                 is >> m >> n >> v_align >> h_align;
 656                 m = max(1u, m);
 657                 n = max(1u, n);
 658                 v_align += 'c';
 659                 mathcursor->niceInsert(
 660                         MathAtom(new MathArrayInset("array", m, n, v_align[0], h_align)));
 661                         updateLocal(bv, true);
 662                 break;
 663         }
 664
 665         case LFUN_SUPERSCRIPT:
 666         case LFUN_SUBSCRIPT:
 667         {
 668                 bv->lockedInsetStoreUndo(Undo::EDIT);
 669                 mathcursor->script(cmd.action == LFUN_SUPERSCRIPT);
 670                 updateLocal(bv, true);
 671                 break;
 672         }
 673
 674         case LFUN_MATH_DELIM:
 675         {
 676                 //lyxerr << "formulabase::LFUN_MATH_DELIM, arg: '" << arg << "'\n";
 677                 string ls;
 678                 string rs = split(cmd.argument, ls, ' ');
 679                 // Reasonable default values
 680                 if (ls.empty())
 681                         ls = '(';
 682                 if (rs.empty())
 683                         rs = ')';
 684
 685                 bv->lockedInsetStoreUndo(Undo::EDIT);
 686                 mathcursor->handleNest(MathAtom(new MathDelimInset(ls, rs)));
 687                 updateLocal(bv, true);
 688                 break;
 689         }
 690
 691         case LFUN_PROTECTEDSPACE:
 692         case LFUN_MATH_SPACE:
 693                 bv->lockedInsetStoreUndo(Undo::EDIT);
 694                 mathcursor->insert(MathAtom(new MathSpaceInset(",")));
 695                 updateLocal(bv, true);
 696                 break;
 697
 698         case LFUN_UNDO:
 699                 bv->owner()->message(_("Invalid action in math mode!"));
 700                 break;
 701
 702
 703         case LFUN_EXEC_COMMAND:
 704                 result = UNDISPATCHED;
 705                 break;
 706
 707         case LFUN_INSET_ERT:
 708                 // interpret this as if a backslash was typed
 709                 bv->lockedInsetStoreUndo(Undo::EDIT);
 710                 mathcursor->interpret('\\');
 711                 updateLocal(bv, true);
 712                 break;
 713
 714         case LFUN_BREAKPARAGRAPH:
 715         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
 716         case LFUN_BREAKPARAGRAPH_SKIP:
 717                 argument = "\n";
 718                 // fall through
 719
 720 // FIXME: We probably should swap parts of "math-insert" and "self-insert"
 721 // handling such that "self-insert" works on "arbitrary stuff" too, and
 722 // math-insert only handles special math things like "matrix".
 723         case LFUN_INSERT_MATH:
 724                 bv->lockedInsetStoreUndo(Undo::EDIT);
 725                 mathcursor->niceInsert(argument);
 726                 updateLocal(bv, true);
 727                 break;
 728
 729         case -1:
 730         case LFUN_SELFINSERT:
 731                 if (!argument.empty()) {
 732                         bv->lockedInsetStoreUndo(Undo::EDIT);
 733                         if (argument.size() == 1)
 734                                 result = mathcursor->interpret(argument[0]) ? DISPATCHED : FINISHED_RIGHT;
 735                         else
 736                                 mathcursor->insert(asArray(argument));
 737                         updateLocal(bv, true);
 738                 }
 739                 break;
 740
 741         case LFUN_MATH_PANEL:
 742                 result = UNDISPATCHED;
 743                 break;
 744
 745         case LFUN_ESCAPE:
 746                 if (mathcursor->selection())
 747                         mathcursor->selClear();
 748                 else
 749                         result = UNDISPATCHED;
 750                 break;
 751
 752         case LFUN_INSET_TOGGLE:
 753                 mathcursor->insetToggle();
 754                 updateLocal(bv, true);
 755                 break;
 756
 757         case LFUN_REF_INSERT:
 758                 //if (argument.empty()) {
 759                 //      InsetCommandParams p("ref");
 760                 //      owner_->getDialogs().createRef(p.getAsString());
 761                 //} else {
 762                 //      InsetCommandParams p;
 763                 //      p.setFromString(argument);
 764
 765                 //      InsetRef * inset = new InsetRef(p, *buffer_);
 766                 //      if (!insertInset(inset))
 767                 //              delete inset;
 768                 //      else
 769                 //              updateInset(inset, true);
 770                 //}
 771                 //
 772                 if (cmd.argument.empty()) {
 773                         InsetCommandParams p("ref");
 774                         bv->owner()->getDialogs().createRef(p.getAsString());
 775                 } else {
 776                         //mathcursor->handleNest(new InsetRef2);
 777                         //mathcursor->insert(arg);
 778                         mathcursor->insert(MathAtom(new RefInset(cmd.argument)));
 779                 }
 780                 updateLocal(bv, true);
 781                 break;
 782
 783         default:
 784                 result = UNDISPATCHED;
 785         }
 786
 787         mathcursor->normalize();
 788         mathcursor->touch();
 789
 790         lyx::Assert(mathcursor);
 791
 792         if (mathcursor->selection() || was_selection)
 793                 toggleInsetSelection(bv);
 794
 795         if (result == DISPATCHED || result == DISPATCHED_NOUPDATE ||
 796             result == UNDISPATCHED) {
 797                 fitInsetCursor(bv);
 798                 showInsetCursor(bv);
 799                 revealCodes(bv);
 800         } else {
 801                 releaseMathCursor(bv);
 802                 bv->unlockInset(this);
 803         }
 804
 805         return result;  // original version
 806 }
 807
 808
 809 void InsetFormulaBase::revealCodes(BufferView * bv) const
 810 {
 811         if (!mathcursor)
 812                 return;
 813         bv->owner()->message(mathcursor->info());
 814
 815 #if 0
 816         // write something to the minibuffer
 817         // translate to latex
 818         mathcursor->markInsert();
 819         ostringstream os;
 820         write(NULL, os);
 821         string str = os.str();
 822         mathcursor->markErase();
 823         string::size_type pos = 0;
 824         string res;
 825         for (string::iterator it = str.begin(); it != str.end(); ++it) {
 826                 if (*it == '\n')
 827                         res += ' ';
 828                 else if (*it == '\0') {
 829                         res += "  -X-  ";
 830                         pos = it - str.begin();
 831                 }
 832                 else
 833                         res += *it;
 834         }
 835         if (pos > 30)
 836                 res = res.substr(pos - 30);
 837         if (res.size() > 60)
 838                 res = res.substr(0, 60);
 839         bv->owner()->message(res);
 840 #endif
 841 }
 842
 843
 844 Inset::Code InsetFormulaBase::lyxCode() const
 845 {
 846         return Inset::MATH_CODE;
 847 }
 848
 849
 850 int InsetFormulaBase::ylow() const
 851 {
 852         return yo_ - ascent(view(), font_);
 853 }
 854
 855
 856 int InsetFormulaBase::yhigh() const
 857 {
 858         return yo_ + descent(view(), font_);
 859 }
 860
 861
 862 int InsetFormulaBase::xlow() const
 863 {
 864         return xo_;
 865 }
 866
 867
 868 int InsetFormulaBase::xhigh() const
 869 {
 870         return xo_ + width(view(), font_);
 871 }
 872
 873
 874 /////////////////////////////////////////////////////////////////////
 875
 876
 877 bool InsetFormulaBase::searchForward(BufferView * bv, string const & str,
 878                                      bool, bool)
 879 {
 880 #ifdef WITH_WARNINGS
 881 #warning pretty ugly
 882 #endif
 883         static InsetFormulaBase * lastformula = 0;
 884         static MathIterator current = MathIterator(ibegin(par().nucleus()));
 885         static MathArray ar;
 886         static string laststr;
 887
 888         if (lastformula != this || laststr != str) {
 889                 //lyxerr << "reset lastformula to " << this << "\n";
 890                 lastformula = this;
 891                 laststr = str;
 892                 current = ibegin(par().nucleus());
 893                 ar.clear();
 894                 mathed_parse_cell(ar, str);
 895         } else {
 896                 ++current;
 897         }
 898         //lyxerr << "searching '" << str << "' in " << this << ar << endl;
 899
 900         for (MathIterator it = current; it != iend(par().nucleus()); ++it) {
 901                 if (it.cell().matchpart(ar, it.back().pos_)) {
 902                         bv->unlockInset(bv->theLockingInset());
 903                         if (!bv->lockInset(this)) {
 904                                 lyxerr << "Cannot lock inset" << endl;
 905                                 return false;
 906                         }
 907                         delete mathcursor;
 908                         mathcursor = new MathCursor(this, true);
 909                         metrics(bv);
 910                         mathcursor->setSelection(it, ar.size());
 911                         current = it;
 912                         it.jump(ar.size());
 913                         updateLocal(bv, false);
 914                         return true;
 915                 }
 916         }
 917
 918         //lyxerr << "not found!\n";
 919         lastformula = 0;
 920         return false;
 921 }
 922
 923
 924 bool InsetFormulaBase::searchBackward(BufferView * bv, string const & what,
 925                                       bool a, bool b)
 926 {
 927         lyxerr[Debug::MATHED] << "searching backward not implemented in mathed\n";
 928         return searchForward(bv, what, a, b);
 929 }
 930
 931
 932 bool InsetFormulaBase::display() const
 933 {
 934         return par()->asHullInset() && par()->asHullInset()->display();
 935 }
 936
 937
 938 string InsetFormulaBase::selectionAsString() const
 939 {
 940         return mathcursor ? mathcursor->grabSelection() : string();
 941 }
 942
 943 /////////////////////////////////////////////////////////////////////
 944
 945
 946 void mathDispatchCreation(FuncRequest const & cmd, bool display)
 947 {
 948         BufferView * bv = cmd.view();
 949         // use selection if available..
 950         //string sel;
 951         //if (action == LFUN_MATH_IMPORT_SELECTION)
 952         //      sel = "";
 953         //else
 954
 955         string sel = bv->getLyXText()->selectionAsString(bv->buffer(), false);
 956
 957         if (sel.empty()) {
 958                 InsetFormula * f = new InsetFormula(bv);
 959                 if (openNewInset(bv, f)) {
 960                         bv->theLockingInset()->
 961                                 localDispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
 962                         // don't do that also for LFUN_MATH_MODE unless you want end up with
 963                         // always changing to mathrm when opening an inlined inset
 964                         // -- I really hate "LyXfunc overloading"...
 965                         if (display)
 966                                 f->localDispatch(FuncRequest(bv, LFUN_MATH_DISPLAY));
 967                         f->localDispatch(FuncRequest(bv, LFUN_INSERT_MATH, cmd.argument));
 968                 }
 969         } else {
 970                 // create a macro if we see "\\newcommand" somewhere, and an ordinary
 971                 // formula otherwise
 972                 InsetFormulaBase * f;
 973                 if (sel.find("\\newcommand") == string::npos &&
 974                                 sel.find("\\def") == string::npos)
 975                         f = new InsetFormula(sel);
 976                 else
 977                         f = new InsetFormulaMacro(sel);
 978                 bv->getLyXText()->cutSelection(bv);
 979                 openNewInset(bv, f);
 980         }
 981         cmd.message(N_("Math editor mode"));
 982 }
 983
 984
 985 void mathDispatch(FuncRequest const & cmd)
 986 {
 987         BufferView * bv = cmd.view();
 988         if (!bv->available())
 989                 return;
 990
 991         switch (cmd.action) {
 992
 993                 case LFUN_MATH_DISPLAY:
 994                         mathDispatchCreation(cmd, true);
 995                         break;
 996
 997                 case LFUN_MATH_MODE:
 998                         mathDispatchCreation(cmd, false);
 999                         break;
1000
1001                 case LFUN_MATH_IMPORT_SELECTION:
1002                         mathDispatchCreation(cmd, false);
1003                         break;
1004
1005                 case LFUN_MATH_MACRO:
1006                         if (cmd.argument.empty())
1007                                 cmd.errorMessage(N_("Missing argument"));
1008                         else {
1009                                 string s = cmd.argument;
1010                                 string const s1 = token(s, ' ', 1);
1011                                 int const na = s1.empty() ? 0 : lyx::atoi(s1);
1012                                 openNewInset(bv, new InsetFormulaMacro(token(s, ' ', 0), na));
1013                         }
1014                         break;
1015
1016                 case LFUN_GREEK:
1017                 case LFUN_INSERT_MATH:
1018                 case LFUN_INSERT_MATRIX:
1019                 case LFUN_MATH_DELIM: {
1020                         InsetFormula * f = new InsetFormula(bv);
1021                         if (openNewInset(bv, f)) {
1022                                 bv->theLockingInset()->
1023                                         localDispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
1024                                 bv->theLockingInset()->localDispatch(cmd);
1025                         }
1026                         break;
1027                 }
1028                 default:
1029                         break;
1030         }
1031 }