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