src/mathed/formulabase.C

   1 /*
   2 *  File:        formulabase.C
   3 *  Purpose:     Implementation of common parts of the LyX  math insets
   4 *  Author:      Alejandro Aguilar Sierra <asierra@servidor.unam.mx>
   5 *  Created:     January 1996
   6 *
   7 *  Copyright: 1996-1998 Alejandro Aguilar Sierra
   8 *
   9 *  Version: 0.4, Lyx project.
  10 *
  11 *   You are free to use and modify this code under the terms of
  12 *   the GNU General Public Licence version 2 or later.
  13 */
  14
  15 #include <config.h>
  16 #include <fstream>
  17
  18 #include "Lsstream.h"
  19 #include "support/LAssert.h"
  20
  21
  22 #include "formula.h"
  23 #include "formulamacro.h"
  24 #include "lyxrc.h"
  25 #include "funcrequest.h"
  26 #include "BufferView.h"
  27 #include "lyxtext.h"
  28 #include "gettext.h"
  29 #include "LaTeXFeatures.h"
  30 #include "debug.h"
  31 #include "math_support.h"
  32 #include "math_metricsinfo.h"
  33 #include "support/lstrings.h"
  34 #include "frontends/LyXView.h"
  35 #include "frontends/font_metrics.h"
  36 #include "frontends/mouse_state.h"
  37 #include "Lsstream.h"
  38 #include "math_arrayinset.h"
  39 #include "math_charinset.h"
  40 #include "math_deliminset.h"
  41 #include "math_cursor.h"
  42 #include "math_factory.h"
  43 #include "math_fontinset.h"
  44 #include "math_hullinset.h"
  45 #include "math_iterator.h"
  46 #include "math_macrotable.h"
  47 #include "math_parser.h"
  48 #include "math_pos.h"
  49 #include "math_spaceinset.h"
  50 #include "undo_funcs.h"
  51 #include "textpainter.h"
  52 #include "frontends/Dialogs.h"
  53 #include "intl.h"
  54 #include "insets/insetcommandparams.h"
  55 #include "ref_inset.h"
  56
  57 using std::endl;
  58 using std::ostream;
  59 using std::vector;
  60 using std::abs;
  61 using std::max;
  62
  63 MathCursor * mathcursor = 0;
  64
  65
  66 namespace {
  67
  68 // local global
  69 int first_x;
  70 int first_y;
  71
  72
  73
  74 bool openNewInset(BufferView * bv, UpdatableInset * new_inset)
  75 {
  76         if (!bv->insertInset(new_inset)) {
  77                 delete new_inset;
  78                 return false;
  79         }
  80         new_inset->edit(bv, true);
  81         return true;
  82 }
  83
  84
  85 } // namespace anon
  86
  87
  88
  89 InsetFormulaBase::InsetFormulaBase()
  90         : font_(), xo_(0), yo_(0)
  91 {
  92         // This is needed as long the math parser is not re-entrant
  93         initMath();
  94         //lyxerr << "sizeof MathInset: " << sizeof(MathInset) << "\n";
  95         //lyxerr << "sizeof MathMetricsInfo: " << sizeof(MathMetricsInfo) << "\n";
  96         //lyxerr << "sizeof MathCharInset: " << sizeof(MathCharInset) << "\n";
  97         //lyxerr << "sizeof LyXFont: " << sizeof(LyXFont) << "\n";
  98 }
  99
 100
 101 // simply scrap this function if you want
 102 void InsetFormulaBase::mutateToText()
 103 {
 104 #if 0
 105         // translate to latex
 106         ostringstream os;
 107         latex(NULL, os, false, false);
 108         string str = os.str();
 109
 110         // insert this text
 111         LyXText * lt = view_->getLyXText();
 112         string::const_iterator cit = str.begin();
 113         string::const_iterator end = str.end();
 114         for (; cit != end; ++cit)
 115                 view_->owner()->getIntl()->getTransManager().TranslateAndInsert(*cit, lt);
 116
 117         // remove ourselves
 118         //view_->owner()->dispatch(LFUN_ESCAPE);
 119 #endif
 120 }
 121
 122
 123 void InsetFormulaBase::handleFont
 124         (BufferView * bv, string const & arg, string const & font)
 125 {
 126         // this whole function is a hack and won't work for incremental font
 127         // changes...
 128         bv->lockedInsetStoreUndo(Undo::EDIT);
 129         if (mathcursor->par()->name() == font) {
 130                 mathcursor->handleFont(font);
 131                 updateLocal(bv, true);
 132         } else {
 133                 bool sel = mathcursor->selection();
 134                 if (sel)
 135                         updateLocal(bv, true);
 136                 mathcursor->handleNest(createMathInset(font));
 137                 mathcursor->insert(arg);
 138                 if (!sel)
 139                         updateLocal(bv, false);
 140         }
 141 }
 142
 143
 144 // Check if uses AMS macros
 145 void InsetFormulaBase::validate(LaTeXFeatures &) const
 146 {}
 147
 148
 149 void InsetFormulaBase::metrics(BufferView * bv, LyXFont const & f) const
 150 {
 151         font_ = f;
 152         metrics(bv);
 153 }
 154
 155
 156 void InsetFormulaBase::metrics(BufferView * bv) const
 157 {
 158         if (bv)
 159                 view_ = bv->owner()->view();
 160         MathMetricsInfo mi;
 161         mi.base.style = LM_ST_TEXT;
 162         mi.base.font  = font_;
 163         mi.base.font.setColor(LColor::math);
 164         par()->metrics(mi);
 165 }
 166
 167
 168 string const InsetFormulaBase::editMessage() const
 169 {
 170         return _("Math editor mode");
 171 }
 172
 173
 174 void InsetFormulaBase::edit(BufferView * bv, int x, int y, mouse_button::state)
 175 {
 176         if (!bv->lockInset(this))
 177                 lyxerr[Debug::MATHED] << "Cannot lock inset!!!" << endl;
 178         releaseMathCursor(bv);
 179         mathcursor = new MathCursor(this, true);
 180         metrics(bv);
 181         mathcursor->setPos(x + xo_, y + yo_);
 182         // if that is removed, we won't get the magenta box when entering an
 183         // inset for the first time
 184         bv->updateInset(this, false);
 185 }
 186
 187
 188 void InsetFormulaBase::edit(BufferView * bv, bool front)
 189 {
 190         if (!bv->lockInset(this))
 191                 lyxerr << "Cannot lock math inset in edit call!\n";
 192         releaseMathCursor(bv);
 193         mathcursor = new MathCursor(this, front);
 194         metrics(bv);
 195         bv->updateInset(this, false);
 196 }
 197
 198
 199 void InsetFormulaBase::insetUnlock(BufferView * bv)
 200 {
 201         if (mathcursor) {
 202                 if (mathcursor->inMacroMode()) {
 203                         mathcursor->macroModeClose();
 204                         updateLocal(bv, true);
 205                 }
 206                 releaseMathCursor(bv);
 207         }
 208         generatePreview();
 209         bv->updateInset(this, false);
 210 }
 211
 212
 213 void InsetFormulaBase::getCursorPos(BufferView *, int & x, int & y) const
 214 {
 215         // calling metrics here destroys the cached xo,yo positions e.g. in
 216         // MathParboxinset. And it would be too expensive anyway...
 217         //metrics(bv);
 218         if (!mathcursor) {
 219                 lyxerr << "getCursorPos - should not happen";
 220                 x = y = 0;
 221                 return;
 222         }
 223         mathcursor->getPos(x, y);
 224         x = mathcursor->targetX();
 225         x -= xo_;
 226         y -= yo_;
 227         //lyxerr << "getCursorPos: " << x << ' ' << y << endl;
 228 }
 229
 230
 231 void InsetFormulaBase::toggleInsetCursor(BufferView * bv)
 232 {
 233         if (!mathcursor) {
 234                 lyxerr[Debug::MATHED] << "toggleInsetCursor impossible" << endl;
 235                 return;
 236         }
 237         //lyxerr << "toggleInsetCursor: " << isCursorVisible() << endl;
 238         if (isCursorVisible())
 239                 hideInsetCursor(bv);
 240         else
 241                 showInsetCursor(bv);
 242 }
 243
 244
 245 void InsetFormulaBase::showInsetCursor(BufferView * bv, bool)
 246 {
 247         if (!mathcursor) {
 248                 lyxerr << "showInsetCursor impossible" << endl;
 249                 return;
 250         }
 251         if (isCursorVisible())
 252                 return;
 253         int x, y, asc, des;
 254         mathcursor->getPos(x, y);
 255         math_font_max_dim(font_, asc, des);
 256         bv->showLockedInsetCursor(x, y - yo_, asc, des);
 257         setCursorVisible(true);
 258         //lyxerr << "showInsetCursor: " << x << ' ' << y << endl;
 259 }
 260
 261
 262 void InsetFormulaBase::hideInsetCursor(BufferView * bv)
 263 {
 264         if (!mathcursor)
 265                 return;
 266         if (!isCursorVisible())
 267                 return;
 268         bv->hideLockedInsetCursor();
 269         setCursorVisible(false);
 270         //lyxerr << "hideInsetCursor: " << endl;
 271 }
 272
 273
 274 void InsetFormulaBase::fitInsetCursor(BufferView * bv) const
 275 {
 276         if (!mathcursor)
 277                 return;
 278         int x, y, asc, des;
 279         math_font_max_dim(font_, asc, des);
 280         getCursorPos(bv, x, y);
 281         //y += yo_;
 282         //lyxerr << "fitInsetCursor: x: " << x << " y: " << y << " yo: " << yo_ << endl;
 283         bv->fitLockedInsetCursor(x, y, asc, des);
 284 }
 285
 286
 287 void InsetFormulaBase::toggleInsetSelection(BufferView * bv)
 288 {
 289         if (mathcursor)
 290                 bv->updateInset(this, false);
 291 }
 292
 293
 294 vector<string> const InsetFormulaBase::getLabelList() const
 295 {
 296   return vector<string>();
 297 }
 298
 299
 300 void InsetFormulaBase::updateLocal(BufferView * bv, bool dirty)
 301 {
 302         bv->updateInset(this, dirty);
 303 }
 304
 305
 306 Inset::RESULT InsetFormulaBase::lfunMouseRelease(FuncRequest const & cmd)
 307 {
 308         if (!mathcursor)
 309                 return UNDISPATCHED;
 310
 311         BufferView * bv = cmd.view();
 312         hideInsetCursor(bv);
 313         showInsetCursor(bv);
 314         bv->updateInset(this, false);
 315         //lyxerr << "lfunMouseRelease: buttons: " << cmd.button() << endl;
 316
 317         if (cmd.button() == mouse_button::button3) {
 318                 // try to dispatch to enclosed insets first
 319                 if (mathcursor->dispatch(cmd) == MathInset::UNDISPATCHED) {
 320                         // launch math panel for right mouse button
 321                         bv->owner()->getDialogs().showMathPanel();
 322                 }
 323                 return DISPATCHED;
 324         }
 325
 326         if (cmd.button() == mouse_button::button2) {
 327                 mathcursor->selClear();
 328                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 329                 mathcursor->insert(asArray(bv->getClipboard()));
 330                 bv->updateInset(this, true);
 331                 return DISPATCHED;
 332         }
 333
 334         if (cmd.button() == mouse_button::button1) {
 335                 // try to dispatch to enclosed insets first
 336                 mathcursor->dispatch(cmd);
 337                 cmd.view()->stuffClipboard(mathcursor->grabSelection());
 338                 // try to set the cursor
 339                 //delete mathcursor;
 340                 //mathcursor = new MathCursor(this, x == 0);
 341                 //metrics(bv);
 342                 //mathcursor->setPos(x + xo_, y + yo_);
 343                 return DISPATCHED;
 344         }
 345
 346         return UNDISPATCHED;
 347 }
 348
 349
 350 Inset::RESULT InsetFormulaBase::lfunMousePress(FuncRequest const & cmd)
 351 {
 352         BufferView * bv = cmd.view();
 353         //lyxerr << "lfunMousePress: buttons: " << cmd.button() << endl;
 354
 355         if (!mathcursor || mathcursor->formula() != this) {
 356                 lyxerr[Debug::MATHED] << "re-create cursor" << endl;
 357                 releaseMathCursor(bv);
 358                 mathcursor = new MathCursor(this, cmd.x == 0);
 359                 metrics(bv);
 360                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 361         }
 362
 363         if (cmd.button() == mouse_button::button3) {
 364                 mathcursor->dispatch(cmd);
 365                 return DISPATCHED;
 366         }
 367
 368         if (cmd.button() == mouse_button::button1) {
 369                 first_x = cmd.x;
 370                 first_y = cmd.y;
 371                 mathcursor->selClear();
 372                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 373                 mathcursor->dispatch(cmd);
 374                 return DISPATCHED;
 375         }
 376
 377         bv->updateInset(this, false);
 378         return DISPATCHED;
 379 }
 380
 381
 382 Inset::RESULT InsetFormulaBase::lfunMouseMotion(FuncRequest const & cmd)
 383 {
 384         if (!mathcursor)
 385                 return DISPATCHED;
 386
 387         if (mathcursor->dispatch(FuncRequest(cmd)) != MathInset::UNDISPATCHED)
 388                 return DISPATCHED;
 389
 390         // only select with button 1
 391         if (cmd.button() != mouse_button::button1)
 392                 return DISPATCHED;
 393
 394         if (abs(cmd.x - first_x) < 2 && abs(cmd.y - first_y) < 2)
 395                 return DISPATCHED;
 396
 397         first_x = cmd.x;
 398         first_y = cmd.y;
 399
 400         if (!mathcursor->selection())
 401                 mathcursor->selStart();
 402
 403         BufferView * bv = cmd.view();
 404         hideInsetCursor(bv);
 405         mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 406         showInsetCursor(bv);
 407         bv->updateInset(this, false);
 408         return DISPATCHED;
 409 }
 410
 411
 412 Inset::RESULT InsetFormulaBase::localDispatch(FuncRequest const & cmd)
 413 {
 414         //lyxerr << "InsetFormulaBase::localDispatch: act: " << cmd.action
 415         //      << " arg: '" << cmd.argument
 416         //      << " x: '" << cmd.x
 417         //      << " y: '" << cmd.y
 418         //      << "' button: " << cmd.button() << endl;
 419
 420         // delete empty mathbox (LFUN_BACKSPACE and LFUN_DELETE)
 421         bool remove_inset = false;
 422
 423         switch (cmd.action) {
 424                 case LFUN_MOUSE_PRESS:
 425                         return lfunMousePress(cmd);
 426                 case LFUN_MOUSE_MOTION:
 427                         return lfunMouseMotion(cmd);
 428                 case LFUN_MOUSE_RELEASE:
 429                         return lfunMouseRelease(cmd);
 430                 case LFUN_MOUSE_DOUBLE:
 431                         //lyxerr << "Mouse double\n";
 432                         return localDispatch(FuncRequest(LFUN_WORDSEL));
 433                 default:
 434                         break;
 435         }
 436
 437         if (!mathcursor)
 438                 return UNDISPATCHED;
 439
 440         BufferView * bv    = cmd.view();
 441         string argument    = cmd.argument;
 442         RESULT result      = DISPATCHED;
 443         bool sel           = false;
 444         bool was_macro     = mathcursor->inMacroMode();
 445         bool was_selection = mathcursor->selection();
 446
 447         hideInsetCursor(bv);
 448
 449         mathcursor->normalize();
 450         mathcursor->touch();
 451
 452         switch (cmd.action) {
 453
 454         case LFUN_MATH_MUTATE:
 455         case LFUN_MATH_DISPLAY:
 456         case LFUN_MATH_NUMBER:
 457         case LFUN_MATH_NONUMBER:
 458         case LFUN_TABINSERT:
 459         case LFUN_BREAKLINE:
 460         case LFUN_DELETE_LINE_FORWARD:
 461         case LFUN_INSERT_LABEL:
 462         case LFUN_MATH_EXTERN:
 463         case LFUN_TABULAR_FEATURE:
 464         case LFUN_PASTESELECTION:
 465         case LFUN_MATH_LIMITS:
 466                 bv->lockedInsetStoreUndo(Undo::EDIT);
 467                 mathcursor->dispatch(cmd);
 468                 updateLocal(bv, true);
 469                 break;
 470
 471         case LFUN_RIGHTSEL:
 472                 sel = true; // fall through...
 473         case LFUN_RIGHT:
 474                 result = mathcursor->right(sel) ? DISPATCHED : FINISHED_RIGHT;
 475                 //lyxerr << "calling scroll 20\n";
 476                 //scroll(bv, 20);
 477                 updateLocal(bv, false);
 478                 // write something to the minibuffer
 479                 //bv->owner()->message(mathcursor->info());
 480                 break;
 481
 482         case LFUN_LEFTSEL:
 483                 sel = true; // fall through
 484         case LFUN_LEFT:
 485                 result = mathcursor->left(sel) ? DISPATCHED : FINISHED;
 486                 updateLocal(bv, false);
 487                 break;
 488
 489         case LFUN_UPSEL:
 490                 sel = true; // fall through
 491         case LFUN_UP:
 492                 result = mathcursor->up(sel) ? DISPATCHED : FINISHED_UP;
 493                 updateLocal(bv, false);
 494                 break;
 495
 496         case LFUN_DOWNSEL:
 497                 sel = true; // fall through
 498         case LFUN_DOWN:
 499                 result = mathcursor->down(sel) ? DISPATCHED : FINISHED_DOWN;
 500                 updateLocal(bv, false);
 501                 break;
 502
 503         case LFUN_WORDSEL:
 504                 mathcursor->home(false);
 505                 mathcursor->end(true);
 506                 updateLocal(bv, false);
 507                 break;
 508
 509         case LFUN_UP_PARAGRAPHSEL:
 510         case LFUN_UP_PARAGRAPH:
 511         case LFUN_DOWN_PARAGRAPHSEL:
 512         case LFUN_DOWN_PARAGRAPH:
 513                 result = FINISHED;
 514                 updateLocal(bv, false);
 515                 break;
 516
 517         case LFUN_HOMESEL:
 518         case LFUN_WORDLEFTSEL:
 519                 sel = true; // fall through
 520         case LFUN_HOME:
 521         case LFUN_WORDLEFT:
 522                 result = mathcursor->home(sel) ? DISPATCHED : FINISHED;
 523                 updateLocal(bv, false);
 524                 break;
 525
 526         case LFUN_ENDSEL:
 527         case LFUN_WORDRIGHTSEL:
 528                 sel = true; // fall through
 529         case LFUN_END:
 530         case LFUN_WORDRIGHT:
 531                 result = mathcursor->end(sel) ? DISPATCHED : FINISHED_RIGHT;
 532                 updateLocal(bv, false);
 533                 break;
 534
 535         case LFUN_PRIORSEL:
 536         case LFUN_PRIOR:
 537         case LFUN_BEGINNINGBUFSEL:
 538         case LFUN_BEGINNINGBUF:
 539                 result = FINISHED;
 540                 updateLocal(bv, false);
 541                 break;
 542
 543         case LFUN_NEXTSEL:
 544         case LFUN_NEXT:
 545         case LFUN_ENDBUFSEL:
 546         case LFUN_ENDBUF:
 547                 result = FINISHED_RIGHT;
 548                 updateLocal(bv, false);
 549                 break;
 550
 551         case LFUN_TAB:
 552                 mathcursor->idxNext();
 553                 updateLocal(bv, false);
 554                 break;
 555
 556         case LFUN_SHIFT_TAB:
 557                 mathcursor->idxPrev();
 558                 updateLocal(bv, false);
 559                 break;
 560
 561         case LFUN_DELETE_WORD_BACKWARD:
 562         case LFUN_BACKSPACE:
 563                 bv->lockedInsetStoreUndo(Undo::EDIT);
 564                 if (mathcursor->backspace()) {
 565                         result = DISPATCHED;
 566                 } else {
 567                         result = FINISHED;
 568                         remove_inset = true;
 569                 }
 570                 updateLocal(bv, true);
 571                 break;
 572
 573         case LFUN_DELETE_WORD_FORWARD:
 574         case LFUN_DELETE:
 575                 bv->lockedInsetStoreUndo(Undo::EDIT);
 576                 if (mathcursor->erase()) {
 577                         result = DISPATCHED;
 578                 } else {
 579                         result = FINISHED;
 580                         remove_inset = true;
 581                 }
 582                 updateLocal(bv, true);
 583                 break;
 584
 585         //    case LFUN_GETXY:
 586         //      sprintf(dispatch_buffer, "%d %d",);
 587         //      dispatch_result = dispatch_buffer;
 588         //      break;
 589         case LFUN_SETXY: {
 590                 lyxerr << "LFUN_SETXY broken!\n";
 591                 int x = 0;
 592                 int y = 0;
 593                 istringstream is(cmd.argument.c_str());
 594                 is >> x >> y;
 595                 mathcursor->setPos(x, y);
 596                 updateLocal(bv, false);
 597                 break;
 598         }
 599
 600         case LFUN_PASTE:
 601                 if (was_macro)
 602                         mathcursor->macroModeClose();
 603                 bv->lockedInsetStoreUndo(Undo::EDIT);
 604                 mathcursor->selPaste();
 605                 updateLocal(bv, true);
 606                 break;
 607
 608         case LFUN_CUT:
 609                 bv->lockedInsetStoreUndo(Undo::DELETE);
 610                 mathcursor->selCut();
 611                 updateLocal(bv, true);
 612                 break;
 613
 614         case LFUN_COPY:
 615                 mathcursor->selCopy();
 616                 break;
 617
 618
 619         // Special casing for superscript in case of LyX handling
 620         // dead-keys:
 621         case LFUN_CIRCUMFLEX:
 622                 if (cmd.argument.empty()) {
 623                         // do superscript if LyX handles
 624                         // deadkeys
 625                         bv->lockedInsetStoreUndo(Undo::EDIT);
 626                         mathcursor->script(true);
 627                         updateLocal(bv, true);
 628                 }
 629                 break;
 630
 631         case LFUN_UMLAUT:
 632         case LFUN_ACUTE:
 633         case LFUN_GRAVE:
 634         case LFUN_BREVE:
 635         case LFUN_DOT:
 636         case LFUN_MACRON:
 637         case LFUN_CARON:
 638         case LFUN_TILDE:
 639         case LFUN_CEDILLA:
 640         case LFUN_CIRCLE:
 641         case LFUN_UNDERDOT:
 642         case LFUN_TIE:
 643         case LFUN_OGONEK:
 644         case LFUN_HUNG_UMLAUT:
 645                 break;
 646
 647         //  Math fonts
 648         case LFUN_GREEK_TOGGLE: handleFont(bv, cmd.argument, "lyxgreek"); break;
 649         case LFUN_BOLD:         handleFont(bv, cmd.argument, "mathbf"); break;
 650         case LFUN_SANS:         handleFont(bv, cmd.argument, "mathsf"); break;
 651         case LFUN_EMPH:         handleFont(bv, cmd.argument, "mathcal"); break;
 652         case LFUN_ROMAN:        handleFont(bv, cmd.argument, "mathrm"); break;
 653         case LFUN_CODE:         handleFont(bv, cmd.argument, "texttt"); break;
 654         case LFUN_FRAK:         handleFont(bv, cmd.argument, "mathfrak"); break;
 655         case LFUN_ITAL:         handleFont(bv, cmd.argument, "mathit"); break;
 656         case LFUN_NOUN:         handleFont(bv, cmd.argument, "mathbb"); break;
 657         case LFUN_FREE:         handleFont(bv, cmd.argument, "textrm"); break;
 658         case LFUN_DEFAULT:      handleFont(bv, cmd.argument, "textnormal"); break;
 659
 660         case LFUN_GREEK:
 661                 handleFont(bv, cmd.argument, "lyxgreek1");
 662                 if (cmd.argument.size())
 663                         mathcursor->insert(asArray(cmd.argument));
 664                 break;
 665
 666         case LFUN_MATH_MODE:
 667                 if (mathcursor->currentMode() == MathInset::TEXT_MODE) {
 668                         mathcursor->niceInsert(MathAtom(new MathHullInset("simple")));
 669                         updateLocal(bv, true);
 670                 } else {
 671                         handleFont(bv, cmd.argument, "textrm");
 672                 }
 673                 //bv->owner()->message(_("math text mode toggled"));
 674                 break;
 675
 676         case LFUN_MATH_SIZE:
 677 #if 0
 678                 if (!arg.empty()) {
 679                         bv->lockedInsetStoreUndo(Undo::EDIT);
 680                         mathcursor->setSize(arg);
 681                         updateLocal(bv, true);
 682                 }
 683 #endif
 684                 break;
 685
 686         case LFUN_INSERT_MATRIX: {
 687                 bv->lockedInsetStoreUndo(Undo::EDIT);
 688                 unsigned int m = 1;
 689                 unsigned int n = 1;
 690                 string v_align;
 691                 string h_align;
 692                 istringstream is(STRCONV(argument));
 693                 is >> m >> n >> v_align >> h_align;
 694                 m = max(1u, m);
 695                 n = max(1u, n);
 696                 v_align += 'c';
 697                 mathcursor->niceInsert(
 698                         MathAtom(new MathArrayInset("array", m, n, v_align[0], h_align)));
 699                         updateLocal(bv, true);
 700                 break;
 701         }
 702
 703         case LFUN_SUPERSCRIPT:
 704         case LFUN_SUBSCRIPT:
 705         {
 706                 bv->lockedInsetStoreUndo(Undo::EDIT);
 707                 mathcursor->script(cmd.action == LFUN_SUPERSCRIPT);
 708                 updateLocal(bv, true);
 709                 break;
 710         }
 711
 712         case LFUN_MATH_DELIM:
 713         {
 714                 //lyxerr << "formulabase::LFUN_MATH_DELIM, arg: '" << arg << "'\n";
 715                 string ls;
 716                 string rs = split(cmd.argument, ls, ' ');
 717                 // Reasonable default values
 718                 if (ls.empty())
 719                         ls = '(';
 720                 if (rs.empty())
 721                         rs = ')';
 722
 723                 bv->lockedInsetStoreUndo(Undo::EDIT);
 724                 mathcursor->handleNest(MathAtom(new MathDelimInset(ls, rs)));
 725                 updateLocal(bv, true);
 726                 break;
 727         }
 728
 729         case LFUN_PROTECTEDSPACE:
 730         case LFUN_MATH_SPACE:
 731                 bv->lockedInsetStoreUndo(Undo::EDIT);
 732                 mathcursor->insert(MathAtom(new MathSpaceInset(",")));
 733                 updateLocal(bv, true);
 734                 break;
 735
 736         case LFUN_UNDO:
 737                 bv->owner()->message(_("Invalid action in math mode!"));
 738                 break;
 739
 740
 741         case LFUN_EXEC_COMMAND:
 742                 result = UNDISPATCHED;
 743                 break;
 744
 745         case LFUN_INSET_ERT:
 746                 // interpret this as if a backslash was typed
 747                 bv->lockedInsetStoreUndo(Undo::EDIT);
 748                 mathcursor->interpret('\\');
 749                 updateLocal(bv, true);
 750                 break;
 751
 752         case LFUN_BREAKPARAGRAPH:
 753         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
 754         case LFUN_BREAKPARAGRAPH_SKIP:
 755                 argument = "\n";
 756                 // fall through
 757
 758 // FIXME: We probably should swap parts of "math-insert" and "self-insert"
 759 // handling such that "self-insert" works on "arbitrary stuff" too, and
 760 // math-insert only handles special math things like "matrix".
 761         case LFUN_INSERT_MATH:
 762                 bv->lockedInsetStoreUndo(Undo::EDIT);
 763                 mathcursor->niceInsert(argument);
 764                 updateLocal(bv, true);
 765                 break;
 766
 767         case -1:
 768         case LFUN_SELFINSERT:
 769                 if (!argument.empty()) {
 770                         bv->lockedInsetStoreUndo(Undo::EDIT);
 771                         if (argument.size() == 1)
 772                                 result = mathcursor->interpret(argument[0]) ? DISPATCHED : FINISHED_RIGHT;
 773                         else
 774                                 mathcursor->insert(asArray(argument));
 775                         updateLocal(bv, true);
 776                 }
 777                 break;
 778
 779         case LFUN_MATH_PANEL:
 780                 result = UNDISPATCHED;
 781                 break;
 782
 783         case LFUN_ESCAPE:
 784                 if (mathcursor->selection())
 785                         mathcursor->selClear();
 786                 else
 787                         result = UNDISPATCHED;
 788                 break;
 789
 790         case LFUN_INSET_TOGGLE:
 791                 mathcursor->insetToggle();
 792                 updateLocal(bv, true);
 793                 break;
 794
 795         case LFUN_REF_INSERT:
 796                 //if (argument.empty()) {
 797                 //      InsetCommandParams p("ref");
 798                 //      owner_->getDialogs().createRef(p.getAsString());
 799                 //} else {
 800                 //      InsetCommandParams p;
 801                 //      p.setFromString(argument);
 802
 803                 //      InsetRef * inset = new InsetRef(p, *buffer_);
 804                 //      if (!insertInset(inset))
 805                 //              delete inset;
 806                 //      else
 807                 //              updateInset(inset, true);
 808                 //}
 809                 //
 810                 if (cmd.argument.empty()) {
 811                         InsetCommandParams p("ref");
 812                         bv->owner()->getDialogs().createRef(p.getAsString());
 813                 } else {
 814                         //mathcursor->handleNest(new InsetRef2);
 815                         //mathcursor->insert(arg);
 816                         mathcursor->insert(MathAtom(new RefInset(cmd.argument)));
 817                 }
 818                 updateLocal(bv, true);
 819                 break;
 820
 821         default:
 822                 result = UNDISPATCHED;
 823         }
 824
 825         mathcursor->normalize();
 826         mathcursor->touch();
 827
 828         lyx::Assert(mathcursor);
 829
 830         if (mathcursor->selection() || was_selection)
 831                 toggleInsetSelection(bv);
 832
 833         if (result == DISPATCHED || result == DISPATCHED_NOUPDATE ||
 834             result == UNDISPATCHED) {
 835                 fitInsetCursor(bv);
 836                 showInsetCursor(bv);
 837                 revealCodes(bv);
 838                 cmd.view()->stuffClipboard(mathcursor->grabSelection());
 839         } else {
 840                 releaseMathCursor(bv);
 841                 bv->unlockInset(this);
 842                 if (remove_inset)
 843                         bv->owner()->dispatch(FuncRequest(LFUN_DELETE));
 844         }
 845
 846         return result;  // original version
 847 }
 848
 849
 850 void InsetFormulaBase::revealCodes(BufferView * bv) const
 851 {
 852         if (!mathcursor)
 853                 return;
 854         bv->owner()->message(mathcursor->info());
 855
 856 #if 0
 857         // write something to the minibuffer
 858         // translate to latex
 859         mathcursor->markInsert();
 860         ostringstream os;
 861         write(NULL, os);
 862         string str = os.str();
 863         mathcursor->markErase();
 864         string::size_type pos = 0;
 865         string res;
 866         for (string::iterator it = str.begin(); it != str.end(); ++it) {
 867                 if (*it == '\n')
 868                         res += ' ';
 869                 else if (*it == '\0') {
 870                         res += "  -X-  ";
 871                         pos = it - str.begin();
 872                 }
 873                 else
 874                         res += *it;
 875         }
 876         if (pos > 30)
 877                 res = res.substr(pos - 30);
 878         if (res.size() > 60)
 879                 res = res.substr(0, 60);
 880         bv->owner()->message(res);
 881 #endif
 882 }
 883
 884
 885 Inset::Code InsetFormulaBase::lyxCode() const
 886 {
 887         return Inset::MATH_CODE;
 888 }
 889
 890
 891 int InsetFormulaBase::ylow() const
 892 {
 893         return yo_ - ascent(view(), font_);
 894 }
 895
 896
 897 int InsetFormulaBase::yhigh() const
 898 {
 899         return yo_ + descent(view(), font_);
 900 }
 901
 902
 903 int InsetFormulaBase::xlow() const
 904 {
 905         return xo_;
 906 }
 907
 908
 909 int InsetFormulaBase::xhigh() const
 910 {
 911         return xo_ + width(view(), font_);
 912 }
 913
 914
 915 /////////////////////////////////////////////////////////////////////
 916
 917
 918 bool InsetFormulaBase::searchForward(BufferView * bv, string const & str,
 919                                      bool, bool)
 920 {
 921 #ifdef WITH_WARNINGS
 922 #warning pretty ugly
 923 #endif
 924         static InsetFormulaBase * lastformula = 0;
 925         static MathIterator current = MathIterator(ibegin(par().nucleus()));
 926         static MathArray ar;
 927         static string laststr;
 928
 929         if (lastformula != this || laststr != str) {
 930                 //lyxerr << "reset lastformula to " << this << "\n";
 931                 lastformula = this;
 932                 laststr = str;
 933                 current = ibegin(par().nucleus());
 934                 ar.clear();
 935                 mathed_parse_cell(ar, str);
 936         } else {
 937                 ++current;
 938         }
 939         //lyxerr << "searching '" << str << "' in " << this << ar << endl;
 940
 941         for (MathIterator it = current; it != iend(par().nucleus()); ++it) {
 942                 if (it.cell().matchpart(ar, it.back().pos_)) {
 943                         bv->unlockInset(bv->theLockingInset());
 944                         if (!bv->lockInset(this)) {
 945                                 lyxerr << "Cannot lock inset" << endl;
 946                                 return false;
 947                         }
 948                         delete mathcursor;
 949                         mathcursor = new MathCursor(this, true);
 950                         metrics(bv);
 951                         mathcursor->setSelection(it, ar.size());
 952                         current = it;
 953                         it.jump(ar.size());
 954                         updateLocal(bv, false);
 955                         return true;
 956                 }
 957         }
 958
 959         //lyxerr << "not found!\n";
 960         lastformula = 0;
 961         return false;
 962 }
 963
 964
 965 bool InsetFormulaBase::searchBackward(BufferView * bv, string const & what,
 966                                       bool a, bool b)
 967 {
 968         lyxerr[Debug::MATHED] << "searching backward not implemented in mathed\n";
 969         return searchForward(bv, what, a, b);
 970 }
 971
 972
 973 bool InsetFormulaBase::display() const
 974 {
 975         return par()->asHullInset() && par()->asHullInset()->display();
 976 }
 977
 978
 979 string InsetFormulaBase::selectionAsString() const
 980 {
 981         return mathcursor ? mathcursor->grabSelection() : string();
 982 }
 983
 984 /////////////////////////////////////////////////////////////////////
 985
 986
 987 void mathDispatchCreation(FuncRequest const & cmd, bool display)
 988 {
 989         BufferView * bv = cmd.view();
 990         // use selection if available..
 991         //string sel;
 992         //if (action == LFUN_MATH_IMPORT_SELECTION)
 993         //      sel = "";
 994         //else
 995
 996         string sel = bv->getLyXText()->selectionAsString(bv->buffer(), false);
 997
 998         if (sel.empty()) {
 999                 InsetFormula * f = new InsetFormula(bv);
1000                 if (openNewInset(bv, f)) {
1001                         bv->theLockingInset()->
1002                                 localDispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
1003                         // don't do that also for LFUN_MATH_MODE unless you want end up with
1004                         // always changing to mathrm when opening an inlined inset
1005                         // -- I really hate "LyXfunc overloading"...
1006                         if (display)
1007                                 f->localDispatch(FuncRequest(bv, LFUN_MATH_DISPLAY));
1008                         f->localDispatch(FuncRequest(bv, LFUN_INSERT_MATH, cmd.argument));
1009                 }
1010         } else {
1011                 // create a macro if we see "\\newcommand" somewhere, and an ordinary
1012                 // formula otherwise
1013                 InsetFormulaBase * f;
1014                 if (sel.find("\\newcommand") == string::npos &&
1015                                 sel.find("\\def") == string::npos)
1016                         f = new InsetFormula(sel);
1017                 else
1018                         f = new InsetFormulaMacro(sel);
1019                 bv->getLyXText()->cutSelection(bv);
1020                 openNewInset(bv, f);
1021         }
1022         cmd.message(N_("Math editor mode"));
1023 }
1024
1025
1026 void mathDispatch(FuncRequest const & cmd)
1027 {
1028         BufferView * bv = cmd.view();
1029         if (!bv->available())
1030                 return;
1031
1032         switch (cmd.action) {
1033
1034                 case LFUN_MATH_DISPLAY:
1035                         mathDispatchCreation(cmd, true);
1036                         break;
1037
1038                 case LFUN_MATH_MODE:
1039                         mathDispatchCreation(cmd, false);
1040                         break;
1041
1042                 case LFUN_MATH_IMPORT_SELECTION:
1043                         mathDispatchCreation(cmd, false);
1044                         break;
1045
1046                 case LFUN_MATH_MACRO:
1047                         if (cmd.argument.empty())
1048                                 cmd.errorMessage(N_("Missing argument"));
1049                         else {
1050                                 string s = cmd.argument;
1051                                 string const s1 = token(s, ' ', 1);
1052                                 int const na = s1.empty() ? 0 : lyx::atoi(s1);
1053                                 openNewInset(bv, new InsetFormulaMacro(token(s, ' ', 0), na));
1054                         }
1055                         break;
1056
1057                 case LFUN_GREEK:
1058                 case LFUN_INSERT_MATH:
1059                 case LFUN_INSERT_MATRIX:
1060                 case LFUN_MATH_DELIM: {
1061                         InsetFormula * f = new InsetFormula(bv);
1062                         if (openNewInset(bv, f)) {
1063                                 bv->theLockingInset()->
1064                                         localDispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
1065                                 bv->theLockingInset()->localDispatch(cmd);
1066                         }
1067                         break;
1068                 }
1069                 default:
1070                         break;
1071         }
1072 }