src/mathed/formulabase.C

   1 /*
   2 *  File:        formulabase.C
   3 *  Purpose:     Implementation of common parts of the LyX  math insets
   4 *  Author:      Alejandro Aguilar Sierra <asierra@servidor.unam.mx>
   5 *  Created:     January 1996
   6 *
   7 *  Copyright: 1996-1998 Alejandro Aguilar Sierra
   8 *
   9 *  Version: 0.4, Lyx project.
  10 *
  11 *   You are free to use and modify this code under the terms of
  12 *   the GNU General Public Licence version 2 or later.
  13 */
  14
  15 #include <config.h>
  16 #include <fstream>
  17
  18 #include "Lsstream.h"
  19 #include "support/LAssert.h"
  20
  21 #ifdef __GNUG__
  22 #pragma implementation
  23 #endif
  24
  25 #include "formula.h"
  26 #include "formulamacro.h"
  27 #include "lyxrc.h"
  28 #include "funcrequest.h"
  29 #include "BufferView.h"
  30 #include "lyxtext.h"
  31 #include "gettext.h"
  32 #include "LaTeXFeatures.h"
  33 #include "debug.h"
  34 #include "math_support.h"
  35 #include "math_metricsinfo.h"
  36 #include "support/lstrings.h"
  37 #include "frontends/LyXView.h"
  38 #include "frontends/font_metrics.h"
  39 #include "frontends/mouse_state.h"
  40 #include "Lsstream.h"
  41 #include "math_arrayinset.h"
  42 #include "math_charinset.h"
  43 #include "math_deliminset.h"
  44 #include "math_cursor.h"
  45 #include "math_factory.h"
  46 #include "math_fontinset.h"
  47 #include "math_hullinset.h"
  48 #include "math_iterator.h"
  49 #include "math_macrotable.h"
  50 #include "math_parser.h"
  51 #include "math_pos.h"
  52 #include "math_spaceinset.h"
  53 #include "undo_funcs.h"
  54 #include "textpainter.h"
  55 #include "frontends/Dialogs.h"
  56 #include "intl.h"
  57 #include "insets/insetcommandparams.h"
  58 #include "ref_inset.h"
  59
  60 using std::endl;
  61 using std::ostream;
  62 using std::vector;
  63 using std::abs;
  64
  65 MathCursor * mathcursor = 0;
  66
  67
  68 namespace {
  69
  70 // local global
  71 int first_x;
  72 int first_y;
  73
  74
  75
  76 bool openNewInset(BufferView * bv, UpdatableInset * new_inset)
  77 {
  78         if (!bv->insertInset(new_inset)) {
  79                 delete new_inset;
  80                 return false;
  81         }
  82         new_inset->edit(bv, true);
  83         return true;
  84 }
  85
  86
  87 } // namespace anon
  88
  89
  90
  91 InsetFormulaBase::InsetFormulaBase()
  92         : font_(), xo_(0), yo_(0)
  93 {
  94         // This is needed as long the math parser is not re-entrant
  95         initMath();
  96         //lyxerr << "sizeof MathInset: " << sizeof(MathInset) << "\n";
  97         //lyxerr << "sizeof MathMetricsInfo: " << sizeof(MathMetricsInfo) << "\n";
  98         //lyxerr << "sizeof MathCharInset: " << sizeof(MathCharInset) << "\n";
  99         //lyxerr << "sizeof LyXFont: " << sizeof(LyXFont) << "\n";
 100 }
 101
 102
 103 // simply scrap this function if you want
 104 void InsetFormulaBase::mutateToText()
 105 {
 106 #if 0
 107         // translate to latex
 108         ostringstream os;
 109         latex(NULL, os, false, false);
 110         string str = os.str();
 111
 112         // insert this text
 113         LyXText * lt = view_->getLyXText();
 114         string::const_iterator cit = str.begin();
 115         string::const_iterator end = str.end();
 116         for (; cit != end; ++cit)
 117                 view_->owner()->getIntl()->getTransManager().TranslateAndInsert(*cit, lt);
 118
 119         // remove ourselves
 120         //view_->owner()->dispatch(LFUN_ESCAPE);
 121 #endif
 122 }
 123
 124
 125 void InsetFormulaBase::handleFont
 126         (BufferView * bv, string const & arg, string const & font)
 127 {
 128         bv->lockedInsetStoreUndo(Undo::EDIT);
 129         bool sel = mathcursor->selection();
 130         if (sel)
 131                 updateLocal(bv, true);
 132         mathcursor->handleNest(createMathInset(font));
 133         mathcursor->insert(arg);
 134         if (!sel)
 135                 updateLocal(bv, false);
 136 }
 137
 138
 139 // Check if uses AMS macros
 140 void InsetFormulaBase::validate(LaTeXFeatures &) const
 141 {}
 142
 143
 144 void InsetFormulaBase::metrics(BufferView * bv, LyXFont const & f) const
 145 {
 146         font_ = f;
 147         metrics(bv);
 148 }
 149
 150
 151 void InsetFormulaBase::metrics(BufferView * bv) const
 152 {
 153         if (bv)
 154                 view_ = bv->owner()->view();
 155         MathMetricsInfo mi;
 156         mi.base.style = LM_ST_TEXT;
 157         mi.base.font  = font_;
 158         mi.base.font.setColor(LColor::math);
 159         par()->metrics(mi);
 160 }
 161
 162
 163 string const InsetFormulaBase::editMessage() const
 164 {
 165         return _("Math editor mode");
 166 }
 167
 168
 169 void InsetFormulaBase::edit(BufferView * bv, int x, int y, mouse_button::state)
 170 {
 171         if (!bv->lockInset(this))
 172                 lyxerr[Debug::MATHED] << "Cannot lock inset!!!" << endl;
 173         releaseMathCursor(bv);
 174         mathcursor = new MathCursor(this, true);
 175         metrics(bv);
 176         mathcursor->setPos(x + xo_, y + yo_);
 177         // if that is removed, we won't get the magenta box when entering an
 178         // inset for the first time
 179         bv->updateInset(this, false);
 180 }
 181
 182
 183 void InsetFormulaBase::edit(BufferView * bv, bool front)
 184 {
 185         if (!bv->lockInset(this))
 186                 lyxerr << "Cannot lock math inset in edit call!\n";
 187         releaseMathCursor(bv);
 188         mathcursor = new MathCursor(this, front);
 189         metrics(bv);
 190         bv->updateInset(this, false);
 191 }
 192
 193
 194 void InsetFormulaBase::insetUnlock(BufferView * bv)
 195 {
 196         if (mathcursor) {
 197                 if (mathcursor->inMacroMode()) {
 198                         mathcursor->macroModeClose();
 199                         updateLocal(bv, true);
 200                 }
 201                 releaseMathCursor(bv);
 202         }
 203         generatePreview();
 204         bv->updateInset(this, false);
 205 }
 206
 207
 208 void InsetFormulaBase::getCursorPos(BufferView *, int & x, int & y) const
 209 {
 210         // calling metrics here destroys the cached xo,yo positions e.g. in
 211         // MathParboxinset. And it would be too expensive anyway...
 212         //metrics(bv);
 213         if (!mathcursor) {
 214                 lyxerr << "getCursorPos - should not happen";
 215                 x = y = 0;
 216                 return;
 217         }
 218         mathcursor->getPos(x, y);
 219         x = mathcursor->targetX();
 220         x -= xo_;
 221         y -= yo_;
 222         //lyxerr << "getCursorPos: " << x << " " << y << "\n";
 223 }
 224
 225
 226 void InsetFormulaBase::toggleInsetCursor(BufferView * bv)
 227 {
 228         //lyxerr << "toggleInsetCursor: " << isCursorVisible() << "\n";
 229         if (isCursorVisible())
 230                 hideInsetCursor(bv);
 231         else
 232                 showInsetCursor(bv);
 233 }
 234
 235
 236 void InsetFormulaBase::showInsetCursor(BufferView * bv, bool)
 237 {
 238         if (isCursorVisible())
 239                 return;
 240         fitInsetCursor(bv);
 241         int x, y, asc, des;
 242         mathcursor->getPos(x, y);
 243         math_font_max_dim(font_, asc, des);
 244         bv->showLockedInsetCursor(x, y - yo_, asc, des);
 245         setCursorVisible(true);
 246         //lyxerr << "showInsetCursor: " << x << " " << y << "\n";
 247 }
 248
 249
 250 void InsetFormulaBase::hideInsetCursor(BufferView * bv)
 251 {
 252         if (!isCursorVisible())
 253                 return;
 254         bv->hideLockedInsetCursor();
 255         setCursorVisible(false);
 256         //lyxerr << "hideInsetCursor: \n";
 257 }
 258
 259
 260 void InsetFormulaBase::fitInsetCursor(BufferView * bv) const
 261 {
 262         if (!mathcursor)
 263                 return;
 264         int x, y, asc, des;
 265         math_font_max_dim(font_, asc, des);
 266         getCursorPos(bv, x, y);
 267         //y += yo_;
 268         //lyxerr << "fitInsetCursor: x: " << x << " y: " << y << " yo: " << yo_ << "\n";
 269         bv->fitLockedInsetCursor(x, y, asc, des);
 270 }
 271
 272
 273 void InsetFormulaBase::toggleInsetSelection(BufferView * bv)
 274 {
 275         if (mathcursor)
 276                 bv->updateInset(this, false);
 277 }
 278
 279
 280 vector<string> const InsetFormulaBase::getLabelList() const
 281 {
 282   return vector<string>();
 283 }
 284
 285
 286 void InsetFormulaBase::updateLocal(BufferView * bv, bool dirty)
 287 {
 288         bv->updateInset(this, dirty);
 289 }
 290
 291
 292 Inset::RESULT InsetFormulaBase::lfunMouseRelease(FuncRequest const & cmd)
 293 {
 294         if (!mathcursor)
 295                 return UNDISPATCHED;
 296
 297         BufferView * bv = cmd.view();
 298         hideInsetCursor(bv);
 299         showInsetCursor(bv);
 300         bv->updateInset(this, false);
 301
 302         if (cmd.button() == mouse_button::button3) {
 303                 // try to dispatch to enclosed insets first
 304                 if (mathcursor->dispatch(cmd) == MathInset::UNDISPATCHED) {
 305                         // launch math panel for right mouse button
 306                         bv->owner()->getDialogs().showMathPanel();
 307                 }
 308                 return DISPATCHED;
 309         }
 310
 311         if (cmd.button() == mouse_button::button1) {
 312                 // try to dispatch to enclosed insets first
 313                 mathcursor->dispatch(cmd);
 314                 // try to set the cursor
 315                 //delete mathcursor;
 316                 //mathcursor = new MathCursor(this, x == 0);
 317                 //metrics(bv);
 318                 //mathcursor->setPos(x + xo_, y + yo_);
 319                 return DISPATCHED;
 320         }
 321         return UNDISPATCHED;
 322 }
 323
 324
 325 Inset::RESULT InsetFormulaBase::lfunMousePress(FuncRequest const & cmd)
 326 {
 327         BufferView * bv = cmd.view();
 328         releaseMathCursor(bv);
 329         mathcursor = new MathCursor(this, cmd.x == 0);
 330
 331         if (cmd.button() == mouse_button::button1) {
 332                 // just set the cursor here
 333                 //lyxerr << "setting cursor\n";
 334                 metrics(bv);
 335                 first_x = cmd.x;
 336                 first_y = cmd.y;
 337                 mathcursor->selClear();
 338                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 339                 mathcursor->dispatch(cmd);
 340                 return DISPATCHED;
 341         }
 342         if (cmd.button() == mouse_button::button3) {
 343                 mathcursor->dispatch(cmd);
 344                 //delete mathcursor;
 345                 return DISPATCHED;
 346         }
 347         bv->updateInset(this, false);
 348         return DISPATCHED;
 349 }
 350
 351
 352 Inset::RESULT InsetFormulaBase::lfunMouseMotion(FuncRequest const & cmd)
 353 {
 354         if (!mathcursor)
 355                 return DISPATCHED;
 356
 357         if (mathcursor->dispatch(FuncRequest(cmd)) != MathInset::UNDISPATCHED)
 358                 return DISPATCHED;
 359
 360         if (abs(cmd.x - first_x) < 2 && abs(cmd.y - first_y) < 2) {
 361                 //lyxerr << "insetMotionNotify: ignored\n";
 362                 return DISPATCHED;
 363         }
 364         first_x = cmd.x;
 365         first_y = cmd.y;
 366
 367         if (!mathcursor->selection())
 368                 mathcursor->selStart();
 369
 370         BufferView * bv = cmd.view();
 371         hideInsetCursor(bv);
 372         mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 373         showInsetCursor(bv);
 374         bv->updateInset(this, false);
 375         return DISPATCHED;
 376 }
 377
 378
 379 Inset::RESULT InsetFormulaBase::localDispatch(FuncRequest const & cmd)
 380 {
 381         //lyxerr << "InsetFormulaBase::localDispatch: act: " << cmd.action
 382         //      << " arg: '" << cmd.argument
 383         //      << " x: '" << cmd.x
 384         //      << " y: '" << cmd.y
 385         //      << "' button: " << cmd.button() << "\n";
 386
 387         switch (cmd.action) {
 388                 case LFUN_MOUSE_PRESS:
 389                         return lfunMousePress(cmd);
 390                 case LFUN_MOUSE_MOTION:
 391                         return lfunMouseMotion(cmd);
 392                 case LFUN_MOUSE_RELEASE:
 393                         return lfunMouseRelease(cmd);
 394                 default:
 395                         break;
 396         }
 397
 398         if (!mathcursor)
 399                 return UNDISPATCHED;
 400
 401         BufferView * bv    = cmd.view();
 402         string argument    = cmd.argument;
 403         RESULT result      = DISPATCHED;
 404         bool sel           = false;
 405         bool was_macro     = mathcursor->inMacroMode();
 406         bool was_selection = mathcursor->selection();
 407
 408         hideInsetCursor(bv);
 409
 410         mathcursor->normalize();
 411         mathcursor->touch();
 412
 413         switch (cmd.action) {
 414
 415         case LFUN_MATH_MUTATE:
 416         case LFUN_MATH_DISPLAY:
 417         case LFUN_MATH_NUMBER:
 418         case LFUN_MATH_NONUMBER:
 419         case LFUN_TABINSERT:
 420         case LFUN_BREAKLINE:
 421         case LFUN_DELETE_LINE_FORWARD:
 422         case LFUN_INSERT_LABEL:
 423         case LFUN_MATH_EXTERN:
 424         case LFUN_TABULAR_FEATURE:
 425         case LFUN_PASTESELECTION:
 426         case LFUN_MATH_LIMITS:
 427                 bv->lockedInsetStoreUndo(Undo::EDIT);
 428                 mathcursor->dispatch(cmd);
 429                 updateLocal(bv, true);
 430                 break;
 431
 432         case LFUN_WORDRIGHTSEL:
 433         case LFUN_RIGHTSEL:
 434                 sel = true; // fall through...
 435         case LFUN_RIGHT:
 436                 result = mathcursor->right(sel) ? DISPATCHED : FINISHED_RIGHT;
 437                 //lyxerr << "calling scroll 20\n";
 438                 //scroll(bv, 20);
 439                 updateLocal(bv, false);
 440                 // write something to the minibuffer
 441                 //bv->owner()->message(mathcursor->info());
 442                 break;
 443
 444         case LFUN_WORDLEFTSEL:
 445         case LFUN_LEFTSEL:
 446                 sel = true; // fall through
 447         case LFUN_LEFT:
 448                 result = mathcursor->left(sel) ? DISPATCHED : FINISHED;
 449                 updateLocal(bv, false);
 450                 break;
 451
 452         case LFUN_UPSEL:
 453                 sel = true; // fall through
 454         case LFUN_UP:
 455                 result = mathcursor->up(sel) ? DISPATCHED : FINISHED_UP;
 456                 updateLocal(bv, false);
 457                 break;
 458
 459         case LFUN_DOWNSEL:
 460                 sel = true; // fall through
 461         case LFUN_DOWN:
 462                 result = mathcursor->down(sel) ? DISPATCHED : FINISHED_DOWN;
 463                 updateLocal(bv, false);
 464                 break;
 465
 466         case LFUN_HOMESEL:
 467                 sel = true; // fall through
 468         case LFUN_HOME:
 469                 result = mathcursor->home(sel) ? DISPATCHED : FINISHED;
 470                 updateLocal(bv, false);
 471                 break;
 472
 473         case LFUN_ENDSEL:
 474                 sel = true; // fall through
 475         case LFUN_END:
 476                 result = mathcursor->end(sel) ? DISPATCHED : FINISHED_RIGHT;
 477                 updateLocal(bv, false);
 478                 break;
 479
 480         case LFUN_PRIORSEL:
 481         case LFUN_PRIOR:
 482                 result = FINISHED_UP;
 483                 updateLocal(bv, false);
 484                 break;
 485
 486         case LFUN_NEXTSEL:
 487         case LFUN_NEXT:
 488                 result = FINISHED_DOWN;
 489                 updateLocal(bv, false);
 490                 break;
 491
 492         case LFUN_TAB:
 493                 mathcursor->idxNext();
 494                 updateLocal(bv, false);
 495                 break;
 496
 497         case LFUN_SHIFT_TAB:
 498                 mathcursor->idxPrev();
 499                 updateLocal(bv, false);
 500                 break;
 501
 502         case LFUN_DELETE_WORD_BACKWARD:
 503         case LFUN_BACKSPACE:
 504                 bv->lockedInsetStoreUndo(Undo::DELETE);
 505                 mathcursor->backspace();
 506                 updateLocal(bv, true);
 507                 break;
 508
 509         case LFUN_DELETE_WORD_FORWARD:
 510         case LFUN_DELETE:
 511                 bv->lockedInsetStoreUndo(Undo::DELETE);
 512                 mathcursor->erase();
 513                 bv->updateInset(this, true);
 514                 break;
 515
 516         //    case LFUN_GETXY:
 517         //      sprintf(dispatch_buffer, "%d %d",);
 518         //      dispatch_result = dispatch_buffer;
 519         //      break;
 520         case LFUN_SETXY: {
 521                 lyxerr << "LFUN_SETXY broken!\n";
 522                 int x = 0;
 523                 int y = 0;
 524                 istringstream is(cmd.argument.c_str());
 525                 is >> x >> y;
 526                 mathcursor->setPos(x, y);
 527                 updateLocal(bv, false);
 528                 break;
 529         }
 530
 531         case LFUN_PASTE:
 532                 if (was_macro)
 533                         mathcursor->macroModeClose();
 534                 bv->lockedInsetStoreUndo(Undo::EDIT);
 535                 mathcursor->selPaste();
 536                 updateLocal(bv, true);
 537                 break;
 538
 539         case LFUN_CUT:
 540                 bv->lockedInsetStoreUndo(Undo::DELETE);
 541                 mathcursor->selCut();
 542                 updateLocal(bv, true);
 543                 break;
 544
 545         case LFUN_COPY:
 546                 mathcursor->selCopy();
 547                 break;
 548
 549
 550         // Special casing for superscript in case of LyX handling
 551         // dead-keys:
 552         case LFUN_CIRCUMFLEX:
 553                 if (cmd.argument.empty()) {
 554                         // do superscript if LyX handles
 555                         // deadkeys
 556                         bv->lockedInsetStoreUndo(Undo::EDIT);
 557                         mathcursor->script(true);
 558                         updateLocal(bv, true);
 559                 }
 560                 break;
 561
 562         case LFUN_UMLAUT:
 563         case LFUN_ACUTE:
 564         case LFUN_GRAVE:
 565         case LFUN_BREVE:
 566         case LFUN_DOT:
 567         case LFUN_MACRON:
 568         case LFUN_CARON:
 569         case LFUN_TILDE:
 570         case LFUN_CEDILLA:
 571         case LFUN_CIRCLE:
 572         case LFUN_UNDERDOT:
 573         case LFUN_TIE:
 574         case LFUN_OGONEK:
 575         case LFUN_HUNG_UMLAUT:
 576                 break;
 577
 578         //  Math fonts
 579         case LFUN_GREEK_TOGGLE: handleFont(bv, cmd.argument, "lyxgreek"); break;
 580         case LFUN_BOLD:         handleFont(bv, cmd.argument, "textbf"); break;
 581         case LFUN_SANS:         handleFont(bv, cmd.argument, "textsf"); break;
 582         case LFUN_EMPH:         handleFont(bv, cmd.argument, "mathcal"); break;
 583         case LFUN_ROMAN:        handleFont(bv, cmd.argument, "mathrm"); break;
 584         case LFUN_CODE:         handleFont(bv, cmd.argument, "texttt"); break;
 585         case LFUN_FRAK:         handleFont(bv, cmd.argument, "mathfrak"); break;
 586         case LFUN_ITAL:         handleFont(bv, cmd.argument, "mathit"); break;
 587         case LFUN_NOUN:         handleFont(bv, cmd.argument, "mathbb"); break;
 588         case LFUN_DEFAULT:      handleFont(bv, cmd.argument, "textnormal"); break;
 589         case LFUN_FREE:         handleFont(bv, cmd.argument, "textrm"); break;
 590
 591         case LFUN_GREEK:
 592                 handleFont(bv, cmd.argument, "lyxgreek1");
 593                 if (cmd.argument.size())
 594                         mathcursor->interpret(cmd.argument);
 595                 break;
 596
 597         case LFUN_MATH_MODE:
 598                 if (mathcursor->currentMode())
 599                         handleFont(bv, cmd.argument, "textrm");
 600                 else {
 601                         mathcursor->niceInsert(MathAtom(new MathHullInset("simple")));
 602                         updateLocal(bv, true);
 603                 }
 604                 //bv->owner()->message(_("math text mode toggled"));
 605                 break;
 606
 607         case LFUN_MATH_SIZE:
 608 #if 0
 609                 if (!arg.empty()) {
 610                         bv->lockedInsetStoreUndo(Undo::EDIT);
 611                         mathcursor->setSize(arg);
 612                         updateLocal(bv, true);
 613                 }
 614 #endif
 615                 break;
 616
 617         case LFUN_INSERT_MATRIX:
 618                 if (!cmd.argument.empty()) {
 619                         bv->lockedInsetStoreUndo(Undo::EDIT);
 620                         mathcursor->interpret("matrix " + cmd.argument);
 621                         updateLocal(bv, true);
 622                 }
 623                 break;
 624
 625         case LFUN_SUPERSCRIPT:
 626         case LFUN_SUBSCRIPT:
 627         {
 628                 bv->lockedInsetStoreUndo(Undo::EDIT);
 629                 mathcursor->script(cmd.action == LFUN_SUPERSCRIPT);
 630                 updateLocal(bv, true);
 631                 break;
 632         }
 633
 634         case LFUN_MATH_DELIM:
 635         {
 636                 //lyxerr << "formulabase::LFUN_MATH_DELIM, arg: '" << arg << "'\n";
 637                 string ls;
 638                 string rs = split(cmd.argument, ls, ' ');
 639                 // Reasonable default values
 640                 if (ls.empty())
 641                         ls = '(';
 642                 if (rs.empty())
 643                         rs = ')';
 644
 645                 bv->lockedInsetStoreUndo(Undo::EDIT);
 646                 mathcursor->handleNest(MathAtom(new MathDelimInset(ls, rs)));
 647                 updateLocal(bv, true);
 648                 break;
 649         }
 650
 651         case LFUN_PROTECTEDSPACE:
 652         case LFUN_MATH_SPACE:
 653                 bv->lockedInsetStoreUndo(Undo::EDIT);
 654                 mathcursor->insert(MathAtom(new MathSpaceInset(",")));
 655                 updateLocal(bv, true);
 656                 break;
 657
 658         case LFUN_UNDO:
 659                 bv->owner()->message(_("Invalid action in math mode!"));
 660                 break;
 661
 662
 663         case LFUN_EXEC_COMMAND:
 664                 result = UNDISPATCHED;
 665                 break;
 666
 667         case LFUN_INSET_ERT:
 668                 // interpret this as if a backslash was typed
 669                 bv->lockedInsetStoreUndo(Undo::EDIT);
 670                 mathcursor->interpret('\\');
 671                 updateLocal(bv, true);
 672                 break;
 673
 674         case LFUN_BREAKPARAGRAPH:
 675         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
 676         case LFUN_BREAKPARAGRAPH_SKIP:
 677                 argument = "\n";
 678                 // fall through
 679
 680         case -1:
 681         case LFUN_INSERT_MATH:
 682         case LFUN_SELFINSERT:
 683                 if (!argument.empty()) {
 684                         bv->lockedInsetStoreUndo(Undo::EDIT);
 685                         if (argument.size() == 1)
 686                                 result = mathcursor->interpret(argument[0]) ? DISPATCHED : FINISHED_RIGHT;
 687                         else
 688                                 result = mathcursor->interpret(argument) ? DISPATCHED : FINISHED_RIGHT;
 689                         updateLocal(bv, true);
 690                 }
 691                 break;
 692
 693         case LFUN_MATH_PANEL:
 694                 result = UNDISPATCHED;
 695                 break;
 696
 697         case LFUN_ESCAPE:
 698                 if (mathcursor->selection())
 699                         mathcursor->selClear();
 700                 else
 701                         result = UNDISPATCHED;
 702                 break;
 703
 704         case LFUN_INSET_TOGGLE:
 705                 mathcursor->insetToggle();
 706                 updateLocal(bv, true);
 707                 break;
 708
 709         case LFUN_REF_INSERT:
 710                 //if (argument.empty()) {
 711                 //      InsetCommandParams p("ref");
 712                 //      owner_->getDialogs().createRef(p.getAsString());
 713                 //} else {
 714                 //      InsetCommandParams p;
 715                 //      p.setFromString(argument);
 716
 717                 //      InsetRef * inset = new InsetRef(p, *buffer_);
 718                 //      if (!insertInset(inset))
 719                 //              delete inset;
 720                 //      else
 721                 //              updateInset(inset, true);
 722                 //}
 723                 //
 724                 if (cmd.argument.empty()) {
 725                         InsetCommandParams p("ref");
 726                         bv->owner()->getDialogs().createRef(p.getAsString());
 727                 } else {
 728                         //mathcursor->handleNest(new InsetRef2);
 729                         //mathcursor->insert(arg);
 730                         mathcursor->insert(MathAtom(new RefInset(cmd.argument)));
 731                 }
 732                 updateLocal(bv, true);
 733                 break;
 734
 735         default:
 736                 result = UNDISPATCHED;
 737         }
 738
 739         mathcursor->normalize();
 740         mathcursor->touch();
 741
 742         lyx::Assert(mathcursor);
 743
 744         if (mathcursor->selection() || was_selection)
 745                 toggleInsetSelection(bv);
 746
 747         if (result == DISPATCHED || result == DISPATCHED_NOUPDATE ||
 748             result == UNDISPATCHED) {
 749                 fitInsetCursor(bv);
 750                 showInsetCursor(bv);
 751                 revealCodes(bv);
 752         } else {
 753                 releaseMathCursor(bv);
 754                 bv->unlockInset(this);
 755         }
 756
 757         return result;  // original version
 758 }
 759
 760
 761 void InsetFormulaBase::revealCodes(BufferView * bv) const
 762 {
 763         if (!mathcursor)
 764                 return;
 765         bv->owner()->message(mathcursor->info());
 766
 767 #if 0
 768         // write something to the minibuffer
 769         // translate to latex
 770         mathcursor->markInsert();
 771         ostringstream os;
 772         write(NULL, os);
 773         string str = os.str();
 774         mathcursor->markErase();
 775         string::size_type pos = 0;
 776         string res;
 777         for (string::iterator it = str.begin(); it != str.end(); ++it) {
 778                 if (*it == '\n')
 779                         res += ' ';
 780                 else if (*it == '\0') {
 781                         res += "  -X-  ";
 782                         pos = it - str.begin();
 783                 }
 784                 else
 785                         res += *it;
 786         }
 787         if (pos > 30)
 788                 res = res.substr(pos - 30);
 789         if (res.size() > 60)
 790                 res = res.substr(0, 60);
 791         bv->owner()->message(res);
 792 #endif
 793 }
 794
 795
 796 Inset::Code InsetFormulaBase::lyxCode() const
 797 {
 798         return Inset::MATH_CODE;
 799 }
 800
 801
 802 int InsetFormulaBase::ylow() const
 803 {
 804         return yo_ - ascent(view(), font_);
 805 }
 806
 807
 808 int InsetFormulaBase::yhigh() const
 809 {
 810         return yo_ + descent(view(), font_);
 811 }
 812
 813
 814 int InsetFormulaBase::xlow() const
 815 {
 816         return xo_;
 817 }
 818
 819
 820 int InsetFormulaBase::xhigh() const
 821 {
 822         return xo_ + width(view(), font_);
 823 }
 824
 825
 826 /////////////////////////////////////////////////////////////////////
 827
 828
 829 bool InsetFormulaBase::searchForward(BufferView * bv, string const & str,
 830                                      bool, bool)
 831 {
 832 #ifdef WITH_WARNINGS
 833 #warning pretty ugly
 834 #endif
 835         static InsetFormulaBase * lastformula = 0;
 836         static MathIterator current = MathIterator(ibegin(par().nucleus()));
 837         static MathArray ar;
 838         static string laststr;
 839
 840         if (lastformula != this || laststr != str) {
 841                 //lyxerr << "reset lastformula to " << this << "\n";
 842                 lastformula = this;
 843                 laststr = str;
 844                 current = ibegin(par().nucleus());
 845                 ar.clear();
 846                 mathed_parse_cell(ar, str);
 847         } else {
 848                 ++current;
 849         }
 850         //lyxerr << "searching '" << str << "' in " << this << ar << endl;
 851
 852         for (MathIterator it = current; it != iend(par().nucleus()); ++it) {
 853                 if (it.cell().matchpart(ar, it.back().pos_)) {
 854                         bv->unlockInset(bv->theLockingInset());
 855                         if (!bv->lockInset(this)) {
 856                                 lyxerr << "Cannot lock inset" << endl;
 857                                 return false;
 858                         }
 859                         delete mathcursor;
 860                         mathcursor = new MathCursor(this, true);
 861                         metrics(bv);
 862                         mathcursor->setSelection(it, ar.size());
 863                         current = it;
 864                         it.jump(ar.size());
 865                         updateLocal(bv, false);
 866                         return true;
 867                 }
 868         }
 869
 870         //lyxerr << "not found!\n";
 871         lastformula = 0;
 872         return false;
 873 }
 874
 875
 876 bool InsetFormulaBase::searchBackward(BufferView * bv, string const & what,
 877                                       bool a, bool b)
 878 {
 879         lyxerr[Debug::MATHED] << "searching backward not implemented in mathed\n";
 880         return searchForward(bv, what, a, b);
 881 }
 882
 883
 884 bool InsetFormulaBase::display() const
 885 {
 886         return par()->asHullInset() && par()->asHullInset()->display();
 887 }
 888
 889
 890 /////////////////////////////////////////////////////////////////////
 891
 892
 893 void mathDispatchCreation(FuncRequest const & cmd, bool display)
 894 {
 895         BufferView * bv = cmd.view();
 896         // use selection if available..
 897         //string sel;
 898         //if (action == LFUN_MATH_IMPORT_SELECTION)
 899         //      sel = "";
 900         //else
 901
 902         string sel = bv->getLyXText()->selectionAsString(bv->buffer(), false);
 903
 904         if (sel.empty()) {
 905                 InsetFormula * f = new InsetFormula(bv);
 906                 if (openNewInset(bv, f)) {
 907                         bv->theLockingInset()->
 908                                 localDispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
 909                         // don't do that also for LFUN_MATH_MODE unless you want end up with
 910                         // always changing to mathrm when opening an inlined inset
 911                         // -- I really hate "LyXfunc overloading"...
 912                         if (display)
 913                                 f->localDispatch(FuncRequest(bv, LFUN_MATH_DISPLAY));
 914                         f->localDispatch(FuncRequest(bv, LFUN_INSERT_MATH, cmd.argument));
 915                 }
 916         } else {
 917                 // create a macro if we see "\\newcommand" somewhere, and an ordinary
 918                 // formula otherwise
 919                 InsetFormulaBase * f;
 920                 if (sel.find("\\newcommand") == string::npos &&
 921                                 sel.find("\\def") == string::npos)
 922                         f = new InsetFormula(sel);
 923                 else
 924                         f = new InsetFormulaMacro(sel);
 925                 bv->getLyXText()->cutSelection(bv);
 926                 openNewInset(bv, f);
 927         }
 928         cmd.message(N_("Math editor mode"));
 929 }
 930
 931
 932 void mathDispatch(FuncRequest const & cmd)
 933 {
 934         BufferView * bv = cmd.view();
 935         if (!bv->available())
 936                 return;
 937
 938         switch (cmd.action) {
 939
 940                 case LFUN_MATH_DISPLAY:
 941                         mathDispatchCreation(cmd, true);
 942                         break;
 943
 944                 case LFUN_MATH_MODE:
 945                         mathDispatchCreation(cmd, false);
 946                         break;
 947
 948                 case LFUN_MATH_IMPORT_SELECTION:
 949                         mathDispatchCreation(cmd, false);
 950                         break;
 951
 952                 case LFUN_MATH_MACRO:
 953                         if (cmd.argument.empty())
 954                                 cmd.errorMessage(N_("Missing argument"));
 955                         else {
 956                                 string s = cmd.argument;
 957                                 string const s1 = token(s, ' ', 1);
 958                                 int const na = s1.empty() ? 0 : lyx::atoi(s1);
 959                                 openNewInset(bv, new InsetFormulaMacro(token(s, ' ', 0), na));
 960                         }
 961                         break;
 962
 963                 case LFUN_GREEK:
 964                 case LFUN_INSERT_MATH:
 965                 case LFUN_INSERT_MATRIX:
 966                 case LFUN_MATH_DELIM: {
 967                         InsetFormula * f = new InsetFormula(bv);
 968                         if (openNewInset(bv, f)) {
 969                                 bv->theLockingInset()->
 970                                         localDispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
 971                                 bv->theLockingInset()->localDispatch(cmd);
 972                         }
 973                         break;
 974                 }
 975                 default:
 976                         break;
 977         }
 978 }