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 "lyxfunc.h"
  32 #include "gettext.h"
  33 #include "LaTeXFeatures.h"
  34 #include "debug.h"
  35 #include "math_support.h"
  36 #include "math_metricsinfo.h"
  37 #include "support/lstrings.h"
  38 #include "frontends/LyXView.h"
  39 #include "frontends/font_metrics.h"
  40 #include "frontends/mouse_state.h"
  41 #include "Lsstream.h"
  42 #include "math_arrayinset.h"
  43 #include "math_charinset.h"
  44 #include "math_deliminset.h"
  45 #include "math_cursor.h"
  46 #include "math_factory.h"
  47 #include "math_fontinset.h"
  48 #include "math_hullinset.h"
  49 #include "math_iterator.h"
  50 #include "math_macrotable.h"
  51 #include "math_parser.h"
  52 #include "math_pos.h"
  53 #include "math_spaceinset.h"
  54 #include "undo_funcs.h"
  55 #include "textpainter.h"
  56 #include "frontends/Dialogs.h"
  57 #include "intl.h"
  58 #include "insets/insetcommandparams.h"
  59 #include "ref_inset.h"
  60
  61 using std::endl;
  62 using std::ostream;
  63 using std::vector;
  64 using std::abs;
  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, y);
 178         //lyxerr << "setting pos to " << x << "," << y << "\n";
 179
 180         // if that is removed, we won't get the magenta box when entering an
 181         // inset for the first time
 182         bv->updateInset(this, false);
 183 }
 184
 185
 186 void InsetFormulaBase::edit(BufferView * bv, bool front)
 187 {
 188         if (!bv->lockInset(this))
 189                 lyxerr << "Cannot lock math inset in edit call!\n";
 190         releaseMathCursor(bv);
 191         mathcursor = new MathCursor(this, front);
 192         metrics(bv);
 193         bv->updateInset(this, false);
 194 }
 195
 196
 197 void InsetFormulaBase::insetUnlock(BufferView * bv)
 198 {
 199         if (mathcursor) {
 200                 if (mathcursor->inMacroMode()) {
 201                         mathcursor->macroModeClose();
 202                         updateLocal(bv, true);
 203                 }
 204                 releaseMathCursor(bv);
 205         }
 206         generatePreview();
 207         bv->updateInset(this, false);
 208 }
 209
 210
 211 void InsetFormulaBase::getCursorPos(BufferView *, int & x, int & y) const
 212 {
 213         // calling metrics here destroys the cached xo,yo positions e.g. in
 214         // MathParboxinset. And it would be too expensive anyway...
 215         //metrics(bv);
 216         mathcursor->getPos(x, y);
 217         //x -= xo_;
 218         y -= yo_;
 219         //lyxerr << "getCursorPos: " << x << " " << y << "\n";
 220 }
 221
 222
 223 void InsetFormulaBase::toggleInsetCursor(BufferView * bv)
 224 {
 225         //lyxerr << "toggleInsetCursor: " << isCursorVisible() << "\n";
 226         if (isCursorVisible())
 227                 hideInsetCursor(bv);
 228         else
 229                 showInsetCursor(bv);
 230 }
 231
 232
 233 void InsetFormulaBase::showInsetCursor(BufferView * bv, bool)
 234 {
 235         if (isCursorVisible())
 236                 return;
 237         fitInsetCursor(bv);
 238         int x, y, asc, des;
 239         getCursorPos(bv, x, y);
 240         math_font_max_dim(font_, asc, des);
 241         bv->showLockedInsetCursor(x, y, asc, des);
 242         setCursorVisible(true);
 243         //lyxerr << "showInsetCursor: " << x << " " << y << "\n";
 244 }
 245
 246
 247 void InsetFormulaBase::hideInsetCursor(BufferView * bv)
 248 {
 249         if (!isCursorVisible())
 250                 return;
 251         bv->hideLockedInsetCursor();
 252         setCursorVisible(false);
 253         //lyxerr << "hideInsetCursor: \n";
 254 }
 255
 256
 257 void InsetFormulaBase::fitInsetCursor(BufferView * bv) const
 258 {
 259         if (!mathcursor)
 260                 return;
 261         int x, y, asc, des;
 262         math_font_max_dim(font_, asc, des);
 263         getCursorPos(bv, x, y);
 264         //y += yo_;
 265         //lyxerr << "fitInsetCursor: x: " << x << " y: " << y << " yo: " << yo_ << "\n";
 266         bv->fitLockedInsetCursor(x, y, asc, des);
 267 }
 268
 269
 270 void InsetFormulaBase::toggleInsetSelection(BufferView * bv)
 271 {
 272         if (mathcursor)
 273                 bv->updateInset(this, false);
 274 }
 275
 276
 277 vector<string> const InsetFormulaBase::getLabelList() const
 278 {
 279   return vector<string>();
 280 }
 281
 282
 283 void InsetFormulaBase::updateLocal(BufferView * bv, bool dirty)
 284 {
 285         bv->updateInset(this, dirty);
 286 }
 287
 288
 289 bool InsetFormulaBase::insetButtonRelease(BufferView * bv,
 290         int x, int y, mouse_button::state button)
 291 {
 292         if (!mathcursor)
 293                 return false;
 294
 295         //lyxerr << "insetButtonRelease: " << x << " " << y << "\n";
 296         hideInsetCursor(bv);
 297         showInsetCursor(bv);
 298         bv->updateInset(this, false);
 299
 300         if (button == mouse_button::button3) {
 301                 // try to dispatch to enclosed insets first
 302                 if (mathcursor->dispatch(FuncRequest(bv, LFUN_MOUSE_RELEASE, x, y, 3)))
 303                         return true;
 304
 305                 // launch math panel for right mouse button
 306                 bv->owner()->getDialogs().showMathPanel();
 307                 return true;
 308         }
 309
 310         if (button == mouse_button::button1) {
 311                 // try to dispatch to enclosed insets first
 312                 if (mathcursor->dispatch(FuncRequest(bv, LFUN_MOUSE_RELEASE, x, y, 1)))
 313                         return true;
 314
 315                 // try to set the cursor
 316                 //delete mathcursor;
 317                 //mathcursor = new MathCursor(this, x == 0);
 318                 //metrics(bv);
 319                 //mathcursor->setPos(x + xo_, y + yo_);
 320                 return true;
 321         }
 322         return false;
 323 }
 324
 325
 326 void InsetFormulaBase::insetButtonPress(BufferView * bv,
 327                                         int x, int y, mouse_button::state button)
 328 {
 329         //lyxerr << "insetButtonPress: "
 330         //      << x << " " << y << " but: " << button << "\n";
 331         //lyxerr << "formula: ";
 332         //par()->dump();
 333
 334         releaseMathCursor(bv);
 335         mathcursor = new MathCursor(this, x == 0);
 336
 337         if (button == mouse_button::button1) {
 338                 // just set the cursor here
 339                 //lyxerr << "setting cursor\n";
 340                 metrics(bv);
 341                 first_x = x;
 342                 first_y = y;
 343                 mathcursor->selClear();
 344                 mathcursor->setPos(x + xo_, y + yo_);
 345
 346                 if (mathcursor->dispatch(FuncRequest(bv, LFUN_MOUSE_PRESS, x, y, 1))) {
 347                         //delete mathcursor;
 348                         return;
 349                 }
 350
 351         }
 352         if (button == mouse_button::button3) {
 353                 if (mathcursor->dispatch(FuncRequest(bv, LFUN_MOUSE_PRESS, x, y, 3))) {
 354                         //delete mathcursor;
 355                         return;
 356                 }
 357         }
 358         bv->updateInset(this, false);
 359 }
 360
 361
 362 void InsetFormulaBase::insetMotionNotify(BufferView * bv,
 363         int x, int y, mouse_button::state button)
 364 {
 365         if (!mathcursor)
 366                 return;
 367
 368         if (button == mouse_button::button1)
 369                 if (mathcursor->dispatch(FuncRequest(bv, LFUN_MOUSE_MOTION, x, y, 1)))
 370                         return;
 371
 372         if (button == mouse_button::button3)
 373                 if (mathcursor->dispatch(FuncRequest(bv, LFUN_MOUSE_MOTION, x, y, 3)))
 374                         return;
 375
 376         if (abs(x - first_x) < 2 && abs(y - first_y) < 2) {
 377                 //lyxerr << "insetMotionNotify: ignored\n";
 378                 return;
 379         }
 380         first_x = x;
 381         first_y = y;
 382
 383         if (!mathcursor->selection())
 384                 mathcursor->selStart();
 385
 386         //lyxerr << "insetMotionNotify: " << x + xo_ << ' ' << y + yo_
 387         //      << ' ' << button << "\n";
 388         hideInsetCursor(bv);
 389         mathcursor->setPos(x + xo_, y + yo_);
 390         showInsetCursor(bv);
 391         bv->updateInset(this, false);
 392 }
 393
 394
 395 UpdatableInset::RESULT
 396 InsetFormulaBase::localDispatch(FuncRequest const & ev)
 397 {
 398         //lyxerr << "InsetFormulaBase::localDispatch: act: " << action
 399         //      << " arg: '" << arg
 400         //      << "' cursor: " << mathcursor << "\n";
 401
 402         if (!mathcursor)
 403                 return UNDISPATCHED;
 404
 405         BufferView * bv    = ev.view();
 406         string argument    = ev.argument;
 407         RESULT result      = DISPATCHED;
 408         bool sel           = false;
 409         bool was_macro     = mathcursor->inMacroMode();
 410         bool was_selection = mathcursor->selection();
 411
 412         hideInsetCursor(bv);
 413
 414         mathcursor->normalize();
 415         mathcursor->touch();
 416
 417         switch (ev.action) {
 418
 419         case LFUN_MATH_MUTATE:
 420         case LFUN_MATH_DISPLAY:
 421         case LFUN_MATH_HALIGN:
 422         case LFUN_MATH_VALIGN:
 423         case LFUN_MATH_ROW_INSERT:
 424         case LFUN_MATH_ROW_DELETE:
 425         case LFUN_MATH_COLUMN_INSERT:
 426         case LFUN_MATH_COLUMN_DELETE:
 427         case LFUN_MATH_NUMBER:
 428         case LFUN_MATH_NONUMBER:
 429         case LFUN_TABINSERT:
 430         case LFUN_BREAKLINE:
 431         case LFUN_DELETE_LINE_FORWARD:
 432         case LFUN_INSERT_LABEL:
 433         case LFUN_MATH_EXTERN:
 434                 bv->lockedInsetStoreUndo(Undo::EDIT);
 435                 mathcursor->dispatch(ev);
 436                 updateLocal(bv, true);
 437                 break;
 438
 439         case LFUN_WORDRIGHTSEL:
 440         case LFUN_RIGHTSEL:
 441                 sel = true; // fall through...
 442         case LFUN_RIGHT:
 443                 result = mathcursor->right(sel) ? DISPATCHED : FINISHED_RIGHT;
 444                 //lyxerr << "calling scroll 20\n";
 445                 //scroll(bv, 20);
 446                 updateLocal(bv, false);
 447                 // write something to the minibuffer
 448                 //bv->owner()->message(mathcursor->info());
 449                 break;
 450
 451         case LFUN_WORDLEFTSEL:
 452         case LFUN_LEFTSEL:
 453                 sel = true; // fall through
 454         case LFUN_LEFT:
 455                 result = mathcursor->left(sel) ? DISPATCHED : FINISHED;
 456                 updateLocal(bv, false);
 457                 break;
 458
 459         case LFUN_UPSEL:
 460                 sel = true; // fall through
 461         case LFUN_UP:
 462                 result = mathcursor->up(sel) ? DISPATCHED : FINISHED_UP;
 463                 updateLocal(bv, false);
 464                 break;
 465
 466         case LFUN_DOWNSEL:
 467                 sel = true; // fall through
 468         case LFUN_DOWN:
 469                 result = mathcursor->down(sel) ? DISPATCHED : FINISHED_DOWN;
 470                 updateLocal(bv, false);
 471                 break;
 472
 473         case LFUN_HOMESEL:
 474                 sel = true; // fall through
 475         case LFUN_HOME:
 476                 result = mathcursor->home(sel) ? DISPATCHED : FINISHED;
 477                 updateLocal(bv, false);
 478                 break;
 479
 480         case LFUN_ENDSEL:
 481                 sel = true; // fall through
 482         case LFUN_END:
 483                 result = mathcursor->end(sel) ? DISPATCHED : FINISHED_RIGHT;
 484                 updateLocal(bv, false);
 485                 break;
 486
 487         case LFUN_PRIORSEL:
 488         case LFUN_PRIOR:
 489                 result = FINISHED_UP;
 490                 updateLocal(bv, false);
 491                 break;
 492
 493         case LFUN_NEXTSEL:
 494         case LFUN_NEXT:
 495                 result = FINISHED_DOWN;
 496                 updateLocal(bv, false);
 497                 break;
 498
 499         case LFUN_TAB:
 500                 mathcursor->idxNext();
 501                 updateLocal(bv, false);
 502                 break;
 503
 504         case LFUN_SHIFT_TAB:
 505                 mathcursor->idxPrev();
 506                 updateLocal(bv, false);
 507                 break;
 508
 509         case LFUN_DELETE_WORD_BACKWARD:
 510         case LFUN_BACKSPACE:
 511                 bv->lockedInsetStoreUndo(Undo::DELETE);
 512                 mathcursor->backspace();
 513                 updateLocal(bv, true);
 514                 break;
 515
 516         case LFUN_DELETE_WORD_FORWARD:
 517         case LFUN_DELETE:
 518                 bv->lockedInsetStoreUndo(Undo::DELETE);
 519                 mathcursor->erase();
 520                 bv->updateInset(this, true);
 521                 break;
 522
 523         //    case LFUN_GETXY:
 524         //      sprintf(dispatch_buffer, "%d %d",);
 525         //      dispatch_result = dispatch_buffer;
 526         //      break;
 527         case LFUN_SETXY: {
 528                 lyxerr << "LFUN_SETXY broken!\n";
 529                 int x = 0;
 530                 int y = 0;
 531                 istringstream is(ev.argument.c_str());
 532                 is >> x >> y;
 533                 mathcursor->setPos(x, y);
 534                 updateLocal(bv, false);
 535                 break;
 536         }
 537
 538 /*
 539         case LFUN_PASTESELECTION: {
 540                 string const clip = bv->getClipboard();
 541                 if (!clip.empty())
 542                         mathed_parse_normal(par_, clip);
 543                 break;
 544         }
 545 */
 546
 547         case LFUN_PASTE:
 548                 if (was_macro)
 549                         mathcursor->macroModeClose();
 550                 bv->lockedInsetStoreUndo(Undo::EDIT);
 551                 mathcursor->selPaste();
 552                 updateLocal(bv, true);
 553                 break;
 554
 555         case LFUN_CUT:
 556                 bv->lockedInsetStoreUndo(Undo::DELETE);
 557                 mathcursor->selCut();
 558                 updateLocal(bv, true);
 559                 break;
 560
 561         case LFUN_COPY:
 562                 mathcursor->selCopy();
 563                 break;
 564
 565
 566         // Special casing for superscript in case of LyX handling
 567         // dead-keys:
 568         case LFUN_CIRCUMFLEX:
 569                 if (ev.argument.empty()) {
 570                         // do superscript if LyX handles
 571                         // deadkeys
 572                         bv->lockedInsetStoreUndo(Undo::EDIT);
 573                         mathcursor->script(true);
 574                         updateLocal(bv, true);
 575                 }
 576                 break;
 577
 578         case LFUN_UMLAUT:
 579         case LFUN_ACUTE:
 580         case LFUN_GRAVE:
 581         case LFUN_BREVE:
 582         case LFUN_DOT:
 583         case LFUN_MACRON:
 584         case LFUN_CARON:
 585         case LFUN_TILDE:
 586         case LFUN_CEDILLA:
 587         case LFUN_CIRCLE:
 588         case LFUN_UNDERDOT:
 589         case LFUN_TIE:
 590         case LFUN_OGONEK:
 591         case LFUN_HUNG_UMLAUT:
 592                 break;
 593
 594         //  Math fonts
 595         case LFUN_GREEK_TOGGLE: handleFont(bv, ev.argument, "lyxgreek"); break;
 596         case LFUN_BOLD:         handleFont(bv, ev.argument, "textbf"); break;
 597         case LFUN_SANS:         handleFont(bv, ev.argument, "textsf"); break;
 598         case LFUN_EMPH:         handleFont(bv, ev.argument, "mathcal"); break;
 599         case LFUN_ROMAN:        handleFont(bv, ev.argument, "mathrm"); break;
 600         case LFUN_CODE:         handleFont(bv, ev.argument, "texttt"); break;
 601         case LFUN_FRAK:         handleFont(bv, ev.argument, "mathfrak"); break;
 602         case LFUN_ITAL:         handleFont(bv, ev.argument, "mathit"); break;
 603         case LFUN_NOUN:         handleFont(bv, ev.argument, "mathbb"); break;
 604         case LFUN_DEFAULT:      handleFont(bv, ev.argument, "textnormal"); break;
 605         case LFUN_FREE:         handleFont(bv, ev.argument, "textrm"); break;
 606
 607         case LFUN_GREEK:
 608                 handleFont(bv, ev.argument, "lyxgreek1");
 609                 if (ev.argument.size())
 610                         mathcursor->interpret(ev.argument);
 611                 break;
 612
 613         case LFUN_MATH_MODE:
 614                 if (mathcursor->currentMode()) {
 615                         handleFont(bv, ev.argument, "textrm");
 616                 } else {
 617                         mathcursor->niceInsert(MathAtom(new MathHullInset("simple")));
 618                         updateLocal(bv, true);
 619                 }
 620                 //bv->owner()->message(_("math text mode toggled"));
 621                 break;
 622
 623         case LFUN_MATH_LIMITS:
 624                 bv->lockedInsetStoreUndo(Undo::EDIT);
 625                 if (mathcursor->toggleLimits())
 626                         updateLocal(bv, true);
 627                 break;
 628
 629         case LFUN_MATH_SIZE:
 630 #if 0
 631                 if (!arg.empty()) {
 632                         bv->lockedInsetStoreUndo(Undo::EDIT);
 633                         mathcursor->setSize(arg);
 634                         updateLocal(bv, true);
 635                 }
 636 #endif
 637                 break;
 638
 639         case LFUN_INSERT_MATRIX:
 640                 if (!ev.argument.empty()) {
 641                         bv->lockedInsetStoreUndo(Undo::EDIT);
 642                         mathcursor->interpret("matrix " + ev.argument);
 643                         updateLocal(bv, true);
 644                 }
 645                 break;
 646
 647         case LFUN_SUPERSCRIPT:
 648         case LFUN_SUBSCRIPT:
 649         {
 650                 bv->lockedInsetStoreUndo(Undo::EDIT);
 651                 mathcursor->script(ev.action == LFUN_SUPERSCRIPT);
 652                 updateLocal(bv, true);
 653                 break;
 654         }
 655
 656         case LFUN_MATH_DELIM:
 657         {
 658                 //lyxerr << "formulabase::LFUN_MATH_DELIM, arg: '" << arg << "'\n";
 659                 string ls;
 660                 string rs = split(ev.argument, ls, ' ');
 661                 // Reasonable default values
 662                 if (ls.empty())
 663                         ls = '(';
 664                 if (rs.empty())
 665                         rs = ')';
 666
 667                 bv->lockedInsetStoreUndo(Undo::EDIT);
 668                 mathcursor->handleNest(MathAtom(new MathDelimInset(ls, rs)));
 669                 updateLocal(bv, true);
 670                 break;
 671         }
 672
 673         case LFUN_PROTECTEDSPACE:
 674         case LFUN_MATH_SPACE:
 675                 bv->lockedInsetStoreUndo(Undo::EDIT);
 676                 mathcursor->insert(MathAtom(new MathSpaceInset(",")));
 677                 updateLocal(bv, true);
 678                 break;
 679
 680         case LFUN_UNDO:
 681                 bv->owner()->message(_("Invalid action in math mode!"));
 682                 break;
 683
 684
 685         case LFUN_EXEC_COMMAND:
 686                 result = UNDISPATCHED;
 687                 break;
 688
 689         case LFUN_INSET_ERT:
 690                 // interpret this as if a backslash was typed
 691                 bv->lockedInsetStoreUndo(Undo::EDIT);
 692                 mathcursor->interpret('\\');
 693                 updateLocal(bv, true);
 694                 break;
 695
 696         case LFUN_BREAKPARAGRAPH:
 697         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
 698         case LFUN_BREAKPARAGRAPH_SKIP:
 699                 argument = "\n";
 700                 // fall through
 701
 702         case -1:
 703         case LFUN_INSERT_MATH:
 704         case LFUN_SELFINSERT:
 705                 if (!argument.empty()) {
 706                         bv->lockedInsetStoreUndo(Undo::EDIT);
 707                         if (argument.size() == 1)
 708                                 result = mathcursor->interpret(argument[0]) ? DISPATCHED : FINISHED_RIGHT;
 709                         else
 710                                 result = mathcursor->interpret(argument) ? DISPATCHED : FINISHED_RIGHT;
 711                         updateLocal(bv, true);
 712                 }
 713                 break;
 714
 715         case LFUN_MATH_PANEL:
 716                 result = UNDISPATCHED;
 717                 break;
 718
 719         case LFUN_ESCAPE:
 720                 if (mathcursor->selection())
 721                         mathcursor->selClear();
 722                 else
 723                         result = UNDISPATCHED;
 724                 break;
 725
 726         case LFUN_INSET_TOGGLE:
 727                 mathcursor->insetToggle();
 728                 updateLocal(bv, true);
 729                 break;
 730
 731         case LFUN_REF_INSERT:
 732                 //if (argument.empty()) {
 733                 //      InsetCommandParams p("ref");
 734                 //      owner_->getDialogs().createRef(p.getAsString());
 735                 //} else {
 736                 //      InsetCommandParams p;
 737                 //      p.setFromString(argument);
 738
 739                 //      InsetRef * inset = new InsetRef(p, *buffer_);
 740                 //      if (!insertInset(inset))
 741                 //              delete inset;
 742                 //      else
 743                 //              updateInset(inset, true);
 744                 //}
 745                 //
 746                 if (ev.argument.empty()) {
 747                         InsetCommandParams p("ref");
 748                         bv->owner()->getDialogs().createRef(p.getAsString());
 749                 } else {
 750                         //mathcursor->handleNest(new InsetRef2);
 751                         //mathcursor->insert(arg);
 752                         mathcursor->insert(MathAtom(new RefInset(ev.argument)));
 753                 }
 754                 updateLocal(bv, true);
 755                 break;
 756
 757         default:
 758                 result = UNDISPATCHED;
 759         }
 760
 761         mathcursor->normalize();
 762         mathcursor->touch();
 763
 764         lyx::Assert(mathcursor);
 765
 766         if (mathcursor->selection() || was_selection)
 767                 toggleInsetSelection(bv);
 768
 769         if (result == DISPATCHED || result == DISPATCHED_NOUPDATE ||
 770             result == UNDISPATCHED) {
 771                 fitInsetCursor(bv);
 772                 showInsetCursor(bv);
 773                 revealCodes(bv);
 774         } else {
 775                 releaseMathCursor(bv);
 776                 bv->unlockInset(this);
 777         }
 778
 779         return result;  // original version
 780 }
 781
 782
 783 void InsetFormulaBase::revealCodes(BufferView * bv) const
 784 {
 785         if (!mathcursor)
 786                 return;
 787         bv->owner()->message(mathcursor->info());
 788
 789 #if 0
 790         // write something to the minibuffer
 791         // translate to latex
 792         mathcursor->markInsert();
 793         ostringstream os;
 794         write(NULL, os);
 795         string str = os.str();
 796         mathcursor->markErase();
 797         string::size_type pos = 0;
 798         string res;
 799         for (string::iterator it = str.begin(); it != str.end(); ++it) {
 800                 if (*it == '\n')
 801                         res += ' ';
 802                 else if (*it == '\0') {
 803                         res += "  -X-  ";
 804                         pos = it - str.begin();
 805                 }
 806                 else
 807                         res += *it;
 808         }
 809         if (pos > 30)
 810                 res = res.substr(pos - 30);
 811         if (res.size() > 60)
 812                 res = res.substr(0, 60);
 813         bv->owner()->message(res);
 814 #endif
 815 }
 816
 817
 818 Inset::Code InsetFormulaBase::lyxCode() const
 819 {
 820         return Inset::MATH_CODE;
 821 }
 822
 823
 824 int InsetFormulaBase::ylow() const
 825 {
 826         return yo_ - ascent(view(), font_);
 827 }
 828
 829
 830 int InsetFormulaBase::yhigh() const
 831 {
 832         return yo_ + descent(view(), font_);
 833 }
 834
 835
 836 int InsetFormulaBase::xlow() const
 837 {
 838         return xo_;
 839 }
 840
 841
 842 int InsetFormulaBase::xhigh() const
 843 {
 844         return xo_ + width(view(), font_);
 845 }
 846
 847
 848 /////////////////////////////////////////////////////////////////////
 849
 850
 851 bool InsetFormulaBase::searchForward(BufferView * bv, string const & str,
 852                                      bool, bool)
 853 {
 854 #ifdef WITH_WARNINGS
 855 #warning pretty ugly
 856 #endif
 857         static InsetFormulaBase * lastformula = 0;
 858         static MathIterator current = MathIterator(ibegin(par().nucleus()));
 859         static MathArray ar;
 860         static string laststr;
 861
 862         if (lastformula != this || laststr != str) {
 863                 //lyxerr << "reset lastformula to " << this << "\n";
 864                 lastformula = this;
 865                 laststr = str;
 866                 current = ibegin(par().nucleus());
 867                 ar.clear();
 868                 mathed_parse_cell(ar, str);
 869         } else {
 870                 ++current;
 871         }
 872         //lyxerr << "searching '" << str << "' in " << this << ar << endl;
 873
 874         for (MathIterator it = current; it != iend(par().nucleus()); ++it) {
 875                 if (it.cell().matchpart(ar, it.back().pos_)) {
 876                         bv->unlockInset(bv->theLockingInset());
 877                         if (!bv->lockInset(this)) {
 878                                 lyxerr << "Cannot lock inset" << endl;
 879                                 return false;
 880                         }
 881                         delete mathcursor;
 882                         mathcursor = new MathCursor(this, true);
 883                         metrics(bv);
 884                         mathcursor->setSelection(it, ar.size());
 885                         current = it;
 886                         it.jump(ar.size());
 887                         updateLocal(bv, false);
 888                         return true;
 889                 }
 890         }
 891
 892         //lyxerr << "not found!\n";
 893         lastformula = 0;
 894         return false;
 895 }
 896
 897
 898 bool InsetFormulaBase::searchBackward(BufferView * bv, string const & what,
 899                                       bool a, bool b)
 900 {
 901         lyxerr[Debug::MATHED] << "searching backward not implemented in mathed\n";
 902         return searchForward(bv, what, a, b);
 903 }
 904
 905
 906 bool InsetFormulaBase::display() const
 907 {
 908         return par()->asHullInset() && par()->asHullInset()->display();
 909 }
 910
 911
 912 /////////////////////////////////////////////////////////////////////
 913
 914
 915 void mathDispatchCreation(FuncRequest const & cmd, bool display)
 916 {
 917         BufferView * bv = cmd.view();
 918         // use selection if available..
 919         //string sel;
 920         //if (action == LFUN_MATH_IMPORT_SELECTION)
 921         //      sel = "";
 922         //else
 923
 924         string sel = bv->getLyXText()->selectionAsString(bv->buffer(), false);
 925
 926         if (sel.empty()) {
 927                 InsetFormula * f = new InsetFormula(bv);
 928                 if (openNewInset(bv, f)) {
 929                         bv->theLockingInset()->
 930                                 localDispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
 931                         // don't do that also for LFUN_MATH_MODE unless you want end up with
 932                         // always changing to mathrm when opening an inlined inset
 933                         // -- I really hate "LyXfunc overloading"...
 934                         if (display)
 935                                 f->localDispatch(FuncRequest(bv, LFUN_MATH_DISPLAY));
 936                         f->localDispatch(FuncRequest(bv, LFUN_INSERT_MATH, cmd.argument));
 937                 }
 938         } else {
 939                 // create a macro if we see "\\newcommand" somewhere, and an ordinary
 940                 // formula otherwise
 941                 InsetFormulaBase * f;
 942                 if (sel.find("\\newcommand") == string::npos &&
 943                                 sel.find("\\def") == string::npos)
 944                         f = new InsetFormula(sel);
 945                 else
 946                         f = new InsetFormulaMacro(sel);
 947                 bv->getLyXText()->cutSelection(bv);
 948                 openNewInset(bv, f);
 949         }
 950         bv->owner()->getLyXFunc().setMessage(N_("Math editor mode"));
 951 }
 952
 953
 954 void mathDispatch(FuncRequest const & cmd)
 955 {
 956         BufferView * bv = cmd.view();
 957         if (!bv->available())
 958                 return;
 959
 960         switch (cmd.action) {
 961
 962                 case LFUN_MATH_DISPLAY:
 963                         mathDispatchCreation(cmd, true);
 964                         break;
 965
 966                 case LFUN_MATH_MODE:
 967                         mathDispatchCreation(cmd, false);
 968                         break;
 969
 970                 case LFUN_MATH_IMPORT_SELECTION:
 971                         mathDispatchCreation(cmd, false);
 972                         break;
 973
 974                 case LFUN_MATH_MACRO:
 975                         if (cmd.argument.empty())
 976                                 bv->owner()->getLyXFunc().setErrorMessage(N_("Missing argument"));
 977                         else {
 978                                 string s = cmd.argument;
 979                                 string const s1 = token(s, ' ', 1);
 980                                 int const na = s1.empty() ? 0 : lyx::atoi(s1);
 981                                 openNewInset(bv, new InsetFormulaMacro(token(s, ' ', 0), na));
 982                         }
 983                         break;
 984
 985                 case LFUN_GREEK:
 986                 case LFUN_INSERT_MATH:
 987                 case LFUN_INSERT_MATRIX:
 988                 case LFUN_MATH_DELIM: {
 989                         InsetFormula * f = new InsetFormula(bv);
 990                         if (openNewInset(bv, f)) {
 991                                 bv->theLockingInset()->
 992                                         localDispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
 993                                 bv->theLockingInset()->localDispatch(cmd);
 994                         }
 995                         break;
 996                 }
 997                 default:
 998                         break;
 999         }
1000 }