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