src/mathed/formulabase.C

   1 /**
   2  * \file formulabase.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Alejandro Aguilar Sierra
   7  * \author André Pönitz
   8  *
   9  * Full author contact details are available in file CREDITS.
  10  */
  11
  12 #include <config.h>
  13
  14 #include "formulabase.h"
  15 #include "formula.h"
  16 #include "formulamacro.h"
  17 #include "funcrequest.h"
  18 #include "BufferView.h"
  19 #include "bufferview_funcs.h"
  20 #include "lyxtext.h"
  21 #include "gettext.h"
  22 #include "debug.h"
  23 #include "math_support.h"
  24 #include "math_arrayinset.h"
  25 #include "math_deliminset.h"
  26 #include "math_cursor.h"
  27 #include "math_factory.h"
  28 #include "math_hullinset.h"
  29 #include "math_parser.h"
  30 #include "math_spaceinset.h"
  31 #include "undo_funcs.h"
  32 #include "ref_inset.h"
  33 #include "LColor.h"
  34
  35 #include "support/std_sstream.h"
  36 #include "support/lstrings.h"
  37 #include "support/lyxlib.h"
  38
  39 #include "frontends/LyXView.h"
  40 #include "frontends/Dialogs.h"
  41
  42 using lyx::support::atoi;
  43 using lyx::support::split;
  44 using lyx::support::token;
  45
  46 using std::string;
  47 using std::abs;
  48 using std::endl;
  49 using std::max;
  50
  51 using std::istringstream;
  52
  53
  54 MathCursor * mathcursor = 0;
  55
  56 namespace {
  57
  58 // local global
  59 int first_x;
  60 int first_y;
  61
  62 bool openNewInset(BufferView * bv, UpdatableInset * new_inset)
  63 {
  64         if (!bv->insertInset(new_inset)) {
  65                 delete new_inset;
  66                 return false;
  67         }
  68         new_inset->localDispatch(FuncRequest(bv, LFUN_INSET_EDIT, "left"));
  69         return true;
  70 }
  71
  72
  73 } // namespace anon
  74
  75
  76
  77 InsetFormulaBase::InsetFormulaBase()
  78         : view_(0), xo_(0), yo_(0)
  79 {
  80         // This is needed as long the math parser is not re-entrant
  81         initMath();
  82         //lyxerr << "sizeof MathInset: " << sizeof(MathInset) << endl;
  83         //lyxerr << "sizeof MetricsInfo: " << sizeof(MetricsInfo) << endl;
  84         //lyxerr << "sizeof MathCharInset: " << sizeof(MathCharInset) << endl;
  85         //lyxerr << "sizeof LyXFont: " << sizeof(LyXFont) << endl;
  86 }
  87
  88
  89 // simply scrap this function if you want
  90 void InsetFormulaBase::mutateToText()
  91 {
  92 #if 0
  93         // translate to latex
  94         ostringstream os;
  95         latex(NULL, os, false, false);
  96         string str = os.str();
  97
  98         // insert this text
  99         LyXText * lt = view_->getLyXText();
 100         string::const_iterator cit = str.begin();
 101         string::const_iterator end = str.end();
 102         for (; cit != end; ++cit)
 103                 view_->owner()->getIntl()->getTransManager().TranslateAndInsert(*cit, lt);
 104
 105         // remove ourselves
 106         //view_->owner()->dispatch(LFUN_ESCAPE);
 107 #endif
 108 }
 109
 110
 111 void InsetFormulaBase::handleFont
 112         (BufferView * bv, string const & arg, string const & font)
 113 {
 114         // this whole function is a hack and won't work for incremental font
 115         // changes...
 116         recordUndo(bv, Undo::ATOMIC);
 117
 118         if (mathcursor->inset()->name() == font)
 119                 mathcursor->handleFont(font);
 120         else {
 121                 mathcursor->handleNest(createMathInset(font));
 122                 mathcursor->insert(arg);
 123         }
 124 }
 125
 126
 127 void InsetFormulaBase::handleFont2(BufferView * bv, string const & arg)
 128 {
 129         recordUndo(bv, Undo::ATOMIC);
 130         LyXFont font;
 131         bool b;
 132         bv_funcs::string2font(arg, font, b);
 133         if (font.color() != LColor::inherit) {
 134                 MathAtom at = createMathInset("color");
 135                 asArray(lcolor.getGUIName(font.color()), at.nucleus()->cell(0));
 136                 mathcursor->handleNest(at, 1);
 137         }
 138 }
 139
 140
 141
 142 BufferView * InsetFormulaBase::view() const
 143 {
 144         return view_;
 145 }
 146
 147
 148 void InsetFormulaBase::validate(LaTeXFeatures &) const
 149 {}
 150
 151
 152 string const InsetFormulaBase::editMessage() const
 153 {
 154         return _("Math editor mode");
 155 }
 156
 157
 158 void InsetFormulaBase::insetUnlock(BufferView * bv)
 159 {
 160         if (mathcursor) {
 161                 if (mathcursor->inMacroMode()) {
 162                         mathcursor->macroModeClose();
 163                         bv->updateInset(this);
 164                 }
 165                 releaseMathCursor(bv);
 166         }
 167         if (bv->buffer())
 168                 generatePreview(*bv->buffer());
 169         bv->updateInset(this);
 170 }
 171
 172
 173 void InsetFormulaBase::getCursor(BufferView &, int & x, int & y) const
 174 {
 175         mathcursor->getPos(x, y);
 176 }
 177
 178
 179 void InsetFormulaBase::getCursorPos(BufferView *, int & x, int & y) const
 180 {
 181         // calling metrics here destroys the cached xo,yo positions e.g. in
 182         // MathParboxinset. And it would be too expensive anyway...
 183         //metrics(bv);
 184         if (!mathcursor) {
 185                 lyxerr << "getCursorPos - should not happen";
 186                 x = y = 0;
 187                 return;
 188         }
 189         mathcursor->getPos(x, y);
 190         x = mathcursor->targetX();
 191         x -= xo_;
 192         y -= yo_;
 193         //lyxerr << "getCursorPos: " << x << ' ' << y << endl;
 194 }
 195
 196
 197 void InsetFormulaBase::fitInsetCursor(BufferView * bv) const
 198 {
 199         if (!mathcursor)
 200                 return;
 201         int x, y, asc, des;
 202         asc = 10;
 203         des = 2;
 204         //math_font_max_dim(font_, asc, des);
 205         getCursorPos(bv, x, y);
 206         //y += yo_;
 207         //lyxerr << "fitInsetCursor: x: " << x << " y: " << y << " yo: " << yo_ << endl;
 208         bv->fitLockedInsetCursor(x, y, asc, des);
 209 }
 210
 211
 212 void InsetFormulaBase::toggleInsetSelection(BufferView * bv)
 213 {
 214         if (mathcursor)
 215                 bv->updateInset(this);
 216 }
 217
 218
 219 dispatch_result InsetFormulaBase::lfunMouseRelease(FuncRequest const & cmd)
 220 {
 221         if (!mathcursor)
 222                 return UNDISPATCHED;
 223
 224         BufferView * bv = cmd.view();
 225         bv->updateInset(this);
 226         //lyxerr << "lfunMouseRelease: buttons: " << cmd.button() << endl;
 227
 228         if (cmd.button() == mouse_button::button3) {
 229                 // try to dispatch to enclosed insets first
 230                 if (mathcursor->dispatch(cmd) == UNDISPATCHED) {
 231                         // launch math panel for right mouse button
 232                         lyxerr << "lfunMouseRelease: undispatched: " << cmd.button() << endl;
 233                         bv->owner()->getDialogs().show("mathpanel");
 234                 }
 235                 return DISPATCHED;
 236         }
 237
 238         if (cmd.button() == mouse_button::button2) {
 239                 MathArray ar;
 240                 asArray(bv->getClipboard(), ar);
 241                 mathcursor->selClear();
 242                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 243                 mathcursor->insert(ar);
 244                 bv->updateInset(this);
 245                 return DISPATCHED;
 246         }
 247
 248         if (cmd.button() == mouse_button::button1) {
 249                 // try to dispatch to enclosed insets first
 250                 mathcursor->dispatch(cmd);
 251                 cmd.view()->stuffClipboard(mathcursor->grabSelection());
 252                 // try to set the cursor
 253                 //delete mathcursor;
 254                 //mathcursor = new MathCursor(this, x == 0);
 255                 //metrics(bv);
 256                 //mathcursor->setPos(x + xo_, y + yo_);
 257                 return DISPATCHED;
 258         }
 259
 260         return UNDISPATCHED;
 261 }
 262
 263
 264 dispatch_result InsetFormulaBase::lfunMousePress(FuncRequest const & cmd)
 265 {
 266         BufferView * bv = cmd.view();
 267         //lyxerr << "lfunMousePress: buttons: " << cmd.button() << endl;
 268
 269         if (!mathcursor || mathcursor->formula() != this) {
 270                 lyxerr[Debug::MATHED] << "re-create cursor" << endl;
 271                 releaseMathCursor(bv);
 272                 mathcursor = new MathCursor(this, cmd.x == 0);
 273                 //metrics(bv);
 274                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 275         }
 276
 277         if (cmd.button() == mouse_button::button3) {
 278                 mathcursor->dispatch(cmd);
 279                 return DISPATCHED;
 280         }
 281
 282         if (cmd.button() == mouse_button::button1) {
 283                 first_x = cmd.x;
 284                 first_y = cmd.y;
 285                 mathcursor->selClear();
 286                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 287                 mathcursor->dispatch(cmd);
 288                 return DISPATCHED;
 289         }
 290
 291         bv->updateInset(this);
 292         return DISPATCHED;
 293 }
 294
 295
 296 dispatch_result InsetFormulaBase::lfunMouseMotion(FuncRequest const & cmd)
 297 {
 298         if (!mathcursor)
 299                 return DISPATCHED;
 300
 301         if (mathcursor->dispatch(FuncRequest(cmd)) != UNDISPATCHED)
 302                 return DISPATCHED;
 303
 304         // only select with button 1
 305         if (cmd.button() != mouse_button::button1)
 306                 return DISPATCHED;
 307
 308         if (abs(cmd.x - first_x) < 2 && abs(cmd.y - first_y) < 2)
 309                 return DISPATCHED;
 310
 311         first_x = cmd.x;
 312         first_y = cmd.y;
 313
 314         if (!mathcursor->selection())
 315                 mathcursor->selStart();
 316
 317         BufferView * bv = cmd.view();
 318         mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 319         bv->updateInset(this);
 320         return DISPATCHED;
 321 }
 322
 323
 324 dispatch_result InsetFormulaBase::localDispatch(FuncRequest const & cmd)
 325 {
 326         //lyxerr << "InsetFormulaBase::localDispatch: act: " << cmd.action
 327         //      << " arg: '" << cmd.argument
 328         //      << "' x: '" << cmd.x
 329         //      << " y: '" << cmd.y
 330         //      << "' button: " << cmd.button() << endl;
 331
 332         BufferView * bv = cmd.view();
 333
 334         // delete empty mathbox (LFUN_BACKSPACE and LFUN_DELETE)
 335         bool remove_inset = false;
 336
 337         switch (cmd.action) {
 338                 case LFUN_INSET_EDIT:
 339                         lyxerr << "Called EDIT with '" << cmd.argument << "'" << endl;
 340                         if (!bv->lockInset(this))
 341                                 lyxerr << "Cannot lock math inset in edit call!" << endl;
 342                         releaseMathCursor(bv);
 343                         if (!cmd.argument.empty()) {
 344                                 mathcursor = new MathCursor(this, cmd.argument == "left");
 345                                 //metrics(bv);
 346                         } else {
 347                                 mathcursor = new MathCursor(this, true);
 348                                 //metrics(bv);
 349                                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 350                         }
 351                         // if that is removed, we won't get the magenta box when entering an
 352                         // inset for the first time
 353                         bv->updateInset(this);
 354                         return DISPATCHED;
 355
 356                 case LFUN_MOUSE_PRESS:
 357                         //lyxerr << "Mouse single press" << endl;
 358                         return lfunMousePress(cmd);
 359                 case LFUN_MOUSE_MOTION:
 360                         //lyxerr << "Mouse motion" << endl;
 361                         return lfunMouseMotion(cmd);
 362                 case LFUN_MOUSE_RELEASE:
 363                         //lyxerr << "Mouse single release" << endl;
 364                         return lfunMouseRelease(cmd);
 365                 case LFUN_MOUSE_DOUBLE:
 366                         //lyxerr << "Mouse double" << endl;
 367                         return localDispatch(FuncRequest(LFUN_WORDSEL));
 368                 default:
 369                         break;
 370         }
 371
 372         if (!mathcursor)
 373                 return UNDISPATCHED;
 374
 375         string argument    = cmd.argument;
 376         RESULT result      = DISPATCHED;
 377         bool sel           = false;
 378         bool was_macro     = mathcursor->inMacroMode();
 379         bool was_selection = mathcursor->selection();
 380
 381         mathcursor->normalize();
 382         mathcursor->touch();
 383
 384         switch (cmd.action) {
 385
 386         case LFUN_MATH_MUTATE:
 387         case LFUN_MATH_DISPLAY:
 388         case LFUN_MATH_NUMBER:
 389         case LFUN_MATH_NONUMBER:
 390         case LFUN_CELL_SPLIT:
 391         case LFUN_BREAKLINE:
 392         case LFUN_DELETE_LINE_FORWARD:
 393         case LFUN_INSERT_LABEL:
 394         case LFUN_MATH_EXTERN:
 395         case LFUN_TABULAR_FEATURE:
 396         case LFUN_PASTESELECTION:
 397         case LFUN_MATH_LIMITS:
 398                 recordUndo(bv, Undo::ATOMIC);
 399                 mathcursor->dispatch(cmd);
 400                 break;
 401
 402         case LFUN_RIGHTSEL:
 403                 sel = true; // fall through...
 404         case LFUN_RIGHT:
 405                 result = mathcursor->right(sel) ? DISPATCHED : FINISHED_RIGHT;
 406                 //lyxerr << "calling scroll 20" << endl;
 407                 //scroll(bv, 20);
 408                 // write something to the minibuffer
 409                 //bv->owner()->message(mathcursor->info());
 410                 break;
 411
 412         case LFUN_LEFTSEL:
 413                 sel = true; // fall through
 414         case LFUN_LEFT:
 415                 result = mathcursor->left(sel) ? DISPATCHED : FINISHED;
 416                 break;
 417
 418         case LFUN_UPSEL:
 419                 sel = true; // fall through
 420         case LFUN_UP:
 421                 result = mathcursor->up(sel) ? DISPATCHED : FINISHED_UP;
 422                 break;
 423
 424         case LFUN_DOWNSEL:
 425                 sel = true; // fall through
 426         case LFUN_DOWN:
 427                 result = mathcursor->down(sel) ? DISPATCHED : FINISHED_DOWN;
 428                 break;
 429
 430         case LFUN_WORDSEL:
 431                 mathcursor->home(false);
 432                 mathcursor->end(true);
 433                 break;
 434
 435         case LFUN_UP_PARAGRAPHSEL:
 436         case LFUN_UP_PARAGRAPH:
 437         case LFUN_DOWN_PARAGRAPHSEL:
 438         case LFUN_DOWN_PARAGRAPH:
 439                 result = FINISHED;
 440                 break;
 441
 442         case LFUN_HOMESEL:
 443         case LFUN_WORDLEFTSEL:
 444                 sel = true; // fall through
 445         case LFUN_HOME:
 446         case LFUN_WORDLEFT:
 447                 result = mathcursor->home(sel) ? DISPATCHED : FINISHED;
 448                 break;
 449
 450         case LFUN_ENDSEL:
 451         case LFUN_WORDRIGHTSEL:
 452                 sel = true; // fall through
 453         case LFUN_END:
 454         case LFUN_WORDRIGHT:
 455                 result = mathcursor->end(sel) ? DISPATCHED : FINISHED_RIGHT;
 456                 break;
 457
 458         case LFUN_PRIORSEL:
 459         case LFUN_PRIOR:
 460         case LFUN_BEGINNINGBUFSEL:
 461         case LFUN_BEGINNINGBUF:
 462                 result = FINISHED;
 463                 break;
 464
 465         case LFUN_NEXTSEL:
 466         case LFUN_NEXT:
 467         case LFUN_ENDBUFSEL:
 468         case LFUN_ENDBUF:
 469                 result = FINISHED_RIGHT;
 470                 break;
 471
 472         case LFUN_CELL_FORWARD:
 473                 mathcursor->idxNext();
 474                 break;
 475
 476         case LFUN_CELL_BACKWARD:
 477                 mathcursor->idxPrev();
 478                 break;
 479
 480         case LFUN_DELETE_WORD_BACKWARD:
 481         case LFUN_BACKSPACE:
 482                 recordUndo(bv, Undo::ATOMIC);
 483                 if (!mathcursor->backspace()) {
 484                         result = FINISHED;
 485                         remove_inset = true;
 486                 }
 487                 break;
 488
 489         case LFUN_DELETE_WORD_FORWARD:
 490         case LFUN_DELETE:
 491                 recordUndo(bv, Undo::ATOMIC);
 492                 if (!mathcursor->erase()) {
 493                         result = FINISHED;
 494                         remove_inset = true;
 495                 }
 496                 break;
 497
 498         //    case LFUN_GETXY:
 499         //      sprintf(dispatch_buffer, "%d %d",);
 500         //      dispatch_result = dispatch_buffer;
 501         //      break;
 502         case LFUN_SETXY: {
 503                 lyxerr << "LFUN_SETXY broken!" << endl;
 504                 int x = 0;
 505                 int y = 0;
 506                 istringstream is(cmd.argument.c_str());
 507                 is >> x >> y;
 508                 mathcursor->setPos(x, y);
 509                 break;
 510         }
 511
 512         case LFUN_PASTE: {
 513                 size_t n = 0;
 514                 istringstream is(cmd.argument.c_str());
 515                 is >> n;
 516                 if (was_macro)
 517                         mathcursor->macroModeClose();
 518                 recordUndo(bv, Undo::ATOMIC);
 519                 mathcursor->selPaste(n);
 520                 break;
 521         }
 522
 523         case LFUN_CUT:
 524                 recordUndo(bv, Undo::DELETE);
 525                 mathcursor->selCut();
 526                 break;
 527
 528         case LFUN_COPY:
 529                 mathcursor->selCopy();
 530                 break;
 531
 532
 533         // Special casing for superscript in case of LyX handling
 534         // dead-keys:
 535         case LFUN_CIRCUMFLEX:
 536                 if (cmd.argument.empty()) {
 537                         // do superscript if LyX handles
 538                         // deadkeys
 539                         recordUndo(bv, Undo::ATOMIC);
 540                         mathcursor->script(true);
 541                 }
 542                 break;
 543
 544         case LFUN_UMLAUT:
 545         case LFUN_ACUTE:
 546         case LFUN_GRAVE:
 547         case LFUN_BREVE:
 548         case LFUN_DOT:
 549         case LFUN_MACRON:
 550         case LFUN_CARON:
 551         case LFUN_TILDE:
 552         case LFUN_CEDILLA:
 553         case LFUN_CIRCLE:
 554         case LFUN_UNDERDOT:
 555         case LFUN_TIE:
 556         case LFUN_OGONEK:
 557         case LFUN_HUNG_UMLAUT:
 558                 break;
 559
 560         //  Math fonts
 561         case LFUN_FREEFONT_APPLY:
 562         case LFUN_FREEFONT_UPDATE:
 563                 handleFont2(bv, cmd.argument);
 564                 break;
 565
 566         case LFUN_BOLD:         handleFont(bv, cmd.argument, "mathbf"); break;
 567         case LFUN_SANS:         handleFont(bv, cmd.argument, "mathsf"); break;
 568         case LFUN_EMPH:         handleFont(bv, cmd.argument, "mathcal"); break;
 569         case LFUN_ROMAN:        handleFont(bv, cmd.argument, "mathrm"); break;
 570         case LFUN_CODE:         handleFont(bv, cmd.argument, "texttt"); break;
 571         case LFUN_FRAK:         handleFont(bv, cmd.argument, "mathfrak"); break;
 572         case LFUN_ITAL:         handleFont(bv, cmd.argument, "mathit"); break;
 573         case LFUN_NOUN:         handleFont(bv, cmd.argument, "mathbb"); break;
 574         //case LFUN_FREEFONT_APPLY:  handleFont(bv, cmd.argument, "textrm"); break;
 575         case LFUN_DEFAULT:      handleFont(bv, cmd.argument, "textnormal"); break;
 576
 577         case LFUN_MATH_MODE:
 578                 if (mathcursor->currentMode() == MathInset::TEXT_MODE)
 579                         mathcursor->niceInsert(MathAtom(new MathHullInset("simple")));
 580                 else
 581                         handleFont(bv, cmd.argument, "textrm");
 582                 //bv->owner()->message(_("math text mode toggled"));
 583                 break;
 584
 585         case LFUN_MATH_SIZE:
 586 #if 0
 587                 if (!arg.empty()) {
 588                         recordUndo(bv, Undo::ATOMIC);
 589                         mathcursor->setSize(arg);
 590                 }
 591 #endif
 592                 break;
 593
 594         case LFUN_INSERT_MATRIX: {
 595                 recordUndo(bv, Undo::ATOMIC);
 596                 unsigned int m = 1;
 597                 unsigned int n = 1;
 598                 string v_align;
 599                 string h_align;
 600                 istringstream is(argument);
 601                 is >> m >> n >> v_align >> h_align;
 602                 m = max(1u, m);
 603                 n = max(1u, n);
 604                 v_align += 'c';
 605                 mathcursor->niceInsert(
 606                         MathAtom(new MathArrayInset("array", m, n, v_align[0], h_align)));
 607                 break;
 608         }
 609
 610         case LFUN_SUPERSCRIPT:
 611         case LFUN_SUBSCRIPT:
 612         {
 613                 recordUndo(bv, Undo::ATOMIC);
 614                 mathcursor->script(cmd.action == LFUN_SUPERSCRIPT);
 615                 break;
 616         }
 617
 618         case LFUN_MATH_DELIM:
 619         {
 620                 //lyxerr << "formulabase::LFUN_MATH_DELIM, arg: '" << arg << "'" << endl;
 621                 string ls;
 622                 string rs = split(cmd.argument, ls, ' ');
 623                 // Reasonable default values
 624                 if (ls.empty())
 625                         ls = '(';
 626                 if (rs.empty())
 627                         rs = ')';
 628
 629                 recordUndo(bv, Undo::ATOMIC);
 630                 mathcursor->handleNest(MathAtom(new MathDelimInset(ls, rs)));
 631                 break;
 632         }
 633
 634         case LFUN_SPACE_INSERT:
 635         case LFUN_MATH_SPACE:
 636                 recordUndo(bv, Undo::ATOMIC);
 637                 mathcursor->insert(MathAtom(new MathSpaceInset(",")));
 638                 break;
 639
 640         case LFUN_UNDO:
 641                 bv->owner()->message(_("Invalid action in math mode!"));
 642                 break;
 643
 644
 645         case LFUN_EXEC_COMMAND:
 646                 result = UNDISPATCHED;
 647                 break;
 648
 649         case LFUN_INSET_ERT:
 650                 // interpret this as if a backslash was typed
 651                 recordUndo(bv, Undo::ATOMIC);
 652                 mathcursor->interpret('\\');
 653                 break;
 654
 655         case LFUN_BREAKPARAGRAPH:
 656         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
 657         case LFUN_BREAKPARAGRAPH_SKIP:
 658                 argument = "\n";
 659                 // fall through
 660
 661 // FIXME: We probably should swap parts of "math-insert" and "self-insert"
 662 // handling such that "self-insert" works on "arbitrary stuff" too, and
 663 // math-insert only handles special math things like "matrix".
 664         case LFUN_INSERT_MATH:
 665                 recordUndo(bv, Undo::ATOMIC);
 666                 mathcursor->niceInsert(argument);
 667                 break;
 668
 669         case -1:
 670         case LFUN_SELFINSERT:
 671                 if (!argument.empty()) {
 672                         recordUndo(bv, Undo::ATOMIC);
 673                         if (argument.size() == 1)
 674                                 result = mathcursor->interpret(argument[0]) ? DISPATCHED : FINISHED_RIGHT;
 675                         else
 676                                 mathcursor->insert(argument);
 677                 }
 678                 break;
 679
 680         case LFUN_ESCAPE:
 681                 if (mathcursor->selection())
 682                         mathcursor->selClear();
 683                 else
 684                         result = UNDISPATCHED;
 685                 break;
 686
 687         case LFUN_INSET_TOGGLE:
 688                 mathcursor->insetToggle();
 689                 break;
 690
 691         case LFUN_DIALOG_SHOW:
 692                 result = UNDISPATCHED;
 693                 break;
 694
 695         case LFUN_DIALOG_SHOW_NEW_INSET: {
 696                 string const & name = argument;
 697                 string data;
 698                 if (name == "ref") {
 699                         RefInset tmp(name);
 700                         data = tmp.createDialogStr(name);
 701                 }
 702
 703                 if (data.empty())
 704                         result = UNDISPATCHED;
 705                 else {
 706                         bv->owner()->getDialogs().show(name, data, 0);
 707                 }
 708         }
 709         break;
 710
 711         case LFUN_INSET_APPLY: {
 712                 string const name = cmd.getArg(0);
 713                 InsetBase * base =
 714                         bv->owner()->getDialogs().getOpenInset(name);
 715
 716                 if (base) {
 717                         FuncRequest fr(bv, LFUN_INSET_MODIFY, cmd.argument);
 718                         result = base->localDispatch(fr);
 719                 } else {
 720                         MathArray ar;
 721                         if (createMathInset_fromDialogStr(cmd.argument, ar)) {
 722                                 mathcursor->insert(ar);
 723                                 result = DISPATCHED;
 724                         } else {
 725                                 result = UNDISPATCHED;
 726                         }
 727                 }
 728         }
 729         break;
 730
 731         default:
 732                 result = UNDISPATCHED;
 733         }
 734
 735         if (result == DISPATCHED)
 736                 bv->updateInset(this);
 737
 738         mathcursor->normalize();
 739         mathcursor->touch();
 740
 741         BOOST_ASSERT(mathcursor);
 742
 743         if (mathcursor->selection() || was_selection)
 744                 toggleInsetSelection(bv);
 745
 746         if (result == DISPATCHED || result == DISPATCHED_NOUPDATE ||
 747             result == UNDISPATCHED) {
 748                 fitInsetCursor(bv);
 749                 revealCodes(bv);
 750                 cmd.view()->stuffClipboard(mathcursor->grabSelection());
 751         } else {
 752                 releaseMathCursor(bv);
 753                 bv->unlockInset(this);
 754                 if (remove_inset)
 755                         bv->owner()->dispatch(FuncRequest(LFUN_DELETE));
 756         }
 757
 758         return result;  // original version
 759 }
 760
 761
 762 void InsetFormulaBase::revealCodes(BufferView * bv) const
 763 {
 764         if (!mathcursor)
 765                 return;
 766         bv->owner()->message(mathcursor->info());
 767
 768 #if 0
 769         // write something to the minibuffer
 770         // translate to latex
 771         mathcursor->markInsert();
 772         ostringstream os;
 773         write(NULL, os);
 774         string str = os.str();
 775         mathcursor->markErase();
 776         string::size_type pos = 0;
 777         string res;
 778         for (string::iterator it = str.begin(); it != str.end(); ++it) {
 779                 if (*it == '\n')
 780                         res += ' ';
 781                 else if (*it == '\0') {
 782                         res += "  -X-  ";
 783                         pos = it - str.begin();
 784                 }
 785                 else
 786                         res += *it;
 787         }
 788         if (pos > 30)
 789                 res = res.substr(pos - 30);
 790         if (res.size() > 60)
 791                 res = res.substr(0, 60);
 792         bv->owner()->message(res);
 793 #endif
 794 }
 795
 796
 797 InsetOld::Code InsetFormulaBase::lyxCode() const
 798 {
 799         return InsetOld::MATH_CODE;
 800 }
 801
 802
 803 int InsetFormulaBase::ylow() const
 804 {
 805         return yo_ - dim_.asc;
 806 }
 807
 808
 809 int InsetFormulaBase::yhigh() const
 810 {
 811         return yo_ + dim_.des;
 812 }
 813
 814
 815 int InsetFormulaBase::xlow() const
 816 {
 817         return xo_;
 818 }
 819
 820
 821 int InsetFormulaBase::xhigh() const
 822 {
 823         return xo_ + dim_.wid;
 824 }
 825
 826
 827 /////////////////////////////////////////////////////////////////////
 828
 829
 830 bool InsetFormulaBase::searchForward(BufferView * bv, string const & str,
 831                                      bool, bool)
 832 {
 833 #ifdef WITH_WARNINGS
 834 #warning pretty ugly
 835 #endif
 836         static InsetFormulaBase * lastformula = 0;
 837         static MathIterator current = MathIterator(ibegin(par().nucleus()));
 838         static MathArray ar;
 839         static string laststr;
 840
 841         if (lastformula != this || laststr != str) {
 842                 //lyxerr << "reset lastformula to " << this << endl;
 843                 lastformula = this;
 844                 laststr = str;
 845                 current = ibegin(par().nucleus());
 846                 ar.clear();
 847                 mathed_parse_cell(ar, str);
 848         } else {
 849                 ++current;
 850         }
 851         //lyxerr << "searching '" << str << "' in " << this << ar << endl;
 852
 853         for (MathIterator it = current; it != iend(par().nucleus()); ++it) {
 854                 if (it.cell().matchpart(ar, it.back().pos_)) {
 855                         bv->unlockInset(bv->theLockingInset());
 856                         if (!bv->lockInset(this)) {
 857                                 lyxerr << "Cannot lock inset" << endl;
 858                                 return false;
 859                         }
 860                         delete mathcursor;
 861                         mathcursor = new MathCursor(this, true);
 862                         //metrics(bv);
 863                         mathcursor->setSelection(it, ar.size());
 864                         current = it;
 865                         it.jump(ar.size());
 866                         bv->updateInset(this);
 867                         return true;
 868                 }
 869         }
 870
 871         //lyxerr << "not found!" << endl;
 872         lastformula = 0;
 873         return false;
 874 }
 875
 876
 877 bool InsetFormulaBase::searchBackward(BufferView * bv, string const & what,
 878                                       bool a, bool b)
 879 {
 880         lyxerr[Debug::MATHED] << "searching backward not implemented in mathed" << endl;
 881         return searchForward(bv, what, a, b);
 882 }
 883
 884
 885 bool InsetFormulaBase::display() const
 886 {
 887         return par()->asHullInset() && par()->asHullInset()->display();
 888 }
 889
 890
 891 string InsetFormulaBase::selectionAsString() const
 892 {
 893         return mathcursor ? mathcursor->grabSelection() : string();
 894 }
 895
 896 /////////////////////////////////////////////////////////////////////
 897
 898
 899 void mathDispatchCreation(FuncRequest const & cmd, bool display)
 900 {
 901         BufferView * bv = cmd.view();
 902         // use selection if available..
 903         //string sel;
 904         //if (action == LFUN_MATH_IMPORT_SELECTION)
 905         //      sel = "";
 906         //else
 907
 908         string sel = bv->getLyXText()->selectionAsString(*bv->buffer(), false);
 909
 910         if (sel.empty()) {
 911                 InsetFormula * f = new InsetFormula(bv);
 912                 if (openNewInset(bv, f)) {
 913                         bv->theLockingInset()->
 914                                 localDispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
 915                         // don't do that also for LFUN_MATH_MODE unless you want end up with
 916                         // always changing to mathrm when opening an inlined inset
 917                         // -- I really hate "LyXfunc overloading"...
 918                         if (display)
 919                                 f->localDispatch(FuncRequest(bv, LFUN_MATH_DISPLAY));
 920                         f->localDispatch(FuncRequest(bv, LFUN_INSERT_MATH, cmd.argument));
 921                 }
 922         } else {
 923                 // create a macro if we see "\\newcommand" somewhere, and an ordinary
 924                 // formula otherwise
 925                 InsetFormulaBase * f;
 926                 if (sel.find("\\newcommand") == string::npos &&
 927                                 sel.find("\\def") == string::npos)
 928                         f = new InsetFormula(sel);
 929                 else
 930                         f = new InsetFormulaMacro(sel);
 931                 bv->getLyXText()->cutSelection(true, false);
 932                 openNewInset(bv, f);
 933         }
 934         cmd.message(N_("Math editor mode"));
 935 }
 936
 937
 938 void mathDispatch(FuncRequest const & cmd)
 939 {
 940         BufferView * bv = cmd.view();
 941         if (!bv->available())
 942                 return;
 943
 944         switch (cmd.action) {
 945
 946                 case LFUN_MATH_DISPLAY:
 947                         mathDispatchCreation(cmd, true);
 948                         break;
 949
 950                 case LFUN_MATH_MODE:
 951                         mathDispatchCreation(cmd, false);
 952                         break;
 953
 954                 case LFUN_MATH_IMPORT_SELECTION:
 955                         mathDispatchCreation(cmd, false);
 956                         break;
 957
 958                 case LFUN_MATH_MACRO:
 959                         if (cmd.argument.empty())
 960                                 cmd.errorMessage(N_("Missing argument"));
 961                         else {
 962                                 string s = cmd.argument;
 963                                 string const s1 = token(s, ' ', 1);
 964                                 int const nargs = s1.empty() ? 0 : atoi(s1);
 965                                 string const s2 = token(s, ' ', 2);
 966                                 string const type = s2.empty() ? "newcommand" : s2;
 967                                 openNewInset(bv, new InsetFormulaMacro(token(s, ' ', 0), nargs, s2));
 968                         }
 969                         break;
 970
 971                 case LFUN_INSERT_MATH:
 972                 case LFUN_INSERT_MATRIX:
 973                 case LFUN_MATH_DELIM: {
 974                         InsetFormula * f = new InsetFormula(bv);
 975                         if (openNewInset(bv, f)) {
 976                                 bv->theLockingInset()->
 977                                         localDispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
 978                                 bv->theLockingInset()->localDispatch(cmd);
 979                         }
 980                         break;
 981                 }
 982
 983                 default:
 984                         break;
 985         }
 986 }