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