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