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                 case LFUN_MOUSE_DOUBLE:
 395                         //lyxerr << "Mouse double\n";
 396                         return localDispatch(FuncRequest(LFUN_WORDSEL));
 397                 default:
 398                         break;
 399         }
 400
 401         if (!mathcursor)
 402                 return UNDISPATCHED;
 403
 404         BufferView * bv    = cmd.view();
 405         string argument    = cmd.argument;
 406         RESULT result      = DISPATCHED;
 407         bool sel           = false;
 408         bool was_macro     = mathcursor->inMacroMode();
 409         bool was_selection = mathcursor->selection();
 410
 411         hideInsetCursor(bv);
 412
 413         mathcursor->normalize();
 414         mathcursor->touch();
 415
 416         switch (cmd.action) {
 417
 418         case LFUN_MATH_MUTATE:
 419         case LFUN_MATH_DISPLAY:
 420         case LFUN_MATH_NUMBER:
 421         case LFUN_MATH_NONUMBER:
 422         case LFUN_TABINSERT:
 423         case LFUN_BREAKLINE:
 424         case LFUN_DELETE_LINE_FORWARD:
 425         case LFUN_INSERT_LABEL:
 426         case LFUN_MATH_EXTERN:
 427         case LFUN_TABULAR_FEATURE:
 428         case LFUN_PASTESELECTION:
 429         case LFUN_MATH_LIMITS:
 430                 bv->lockedInsetStoreUndo(Undo::EDIT);
 431                 mathcursor->dispatch(cmd);
 432                 updateLocal(bv, true);
 433                 break;
 434
 435         case LFUN_RIGHTSEL:
 436                 sel = true; // fall through...
 437         case LFUN_RIGHT:
 438                 result = mathcursor->right(sel) ? DISPATCHED : FINISHED_RIGHT;
 439                 //lyxerr << "calling scroll 20\n";
 440                 //scroll(bv, 20);
 441                 updateLocal(bv, false);
 442                 // write something to the minibuffer
 443                 //bv->owner()->message(mathcursor->info());
 444                 break;
 445
 446         case LFUN_LEFTSEL:
 447                 sel = true; // fall through
 448         case LFUN_LEFT:
 449                 result = mathcursor->left(sel) ? DISPATCHED : FINISHED;
 450                 updateLocal(bv, false);
 451                 break;
 452
 453         case LFUN_UPSEL:
 454                 sel = true; // fall through
 455         case LFUN_UP:
 456                 result = mathcursor->up(sel) ? DISPATCHED : FINISHED_UP;
 457                 updateLocal(bv, false);
 458                 break;
 459
 460         case LFUN_DOWNSEL:
 461                 sel = true; // fall through
 462         case LFUN_DOWN:
 463                 result = mathcursor->down(sel) ? DISPATCHED : FINISHED_DOWN;
 464                 updateLocal(bv, false);
 465                 break;
 466
 467         case LFUN_WORDSEL:
 468                 mathcursor->home(false);
 469                 mathcursor->end(true);
 470                 updateLocal(bv, false);
 471                 break;
 472
 473         case LFUN_HOMESEL:
 474         case LFUN_WORDLEFTSEL:
 475                 sel = true; // fall through
 476         case LFUN_HOME:
 477         case LFUN_WORDLEFT:
 478                 result = mathcursor->home(sel) ? DISPATCHED : FINISHED;
 479                 updateLocal(bv, false);
 480                 break;
 481
 482         case LFUN_ENDSEL:
 483         case LFUN_WORDRIGHTSEL:
 484                 sel = true; // fall through
 485         case LFUN_END:
 486         case LFUN_WORDRIGHT:
 487                 result = mathcursor->end(sel) ? DISPATCHED : FINISHED_RIGHT;
 488                 updateLocal(bv, false);
 489                 break;
 490
 491         case LFUN_PRIORSEL:
 492         case LFUN_PRIOR:
 493         case LFUN_BEGINNINGBUFSEL:
 494         case LFUN_BEGINNINGBUF:
 495                 result = FINISHED_UP;
 496                 updateLocal(bv, false);
 497                 break;
 498
 499         case LFUN_NEXTSEL:
 500         case LFUN_NEXT:
 501         case LFUN_ENDBUFSEL:
 502         case LFUN_ENDBUF:
 503                 result = FINISHED_DOWN;
 504                 updateLocal(bv, false);
 505                 break;
 506
 507         case LFUN_TAB:
 508                 mathcursor->idxNext();
 509                 updateLocal(bv, false);
 510                 break;
 511
 512         case LFUN_SHIFT_TAB:
 513                 mathcursor->idxPrev();
 514                 updateLocal(bv, false);
 515                 break;
 516
 517         case LFUN_DELETE_WORD_BACKWARD:
 518         case LFUN_BACKSPACE:
 519                 bv->lockedInsetStoreUndo(Undo::DELETE);
 520                 mathcursor->backspace();
 521                 updateLocal(bv, true);
 522                 break;
 523
 524         case LFUN_DELETE_WORD_FORWARD:
 525         case LFUN_DELETE:
 526                 bv->lockedInsetStoreUndo(Undo::DELETE);
 527                 mathcursor->erase();
 528                 bv->updateInset(this, true);
 529                 break;
 530
 531         //    case LFUN_GETXY:
 532         //      sprintf(dispatch_buffer, "%d %d",);
 533         //      dispatch_result = dispatch_buffer;
 534         //      break;
 535         case LFUN_SETXY: {
 536                 lyxerr << "LFUN_SETXY broken!\n";
 537                 int x = 0;
 538                 int y = 0;
 539                 istringstream is(cmd.argument.c_str());
 540                 is >> x >> y;
 541                 mathcursor->setPos(x, y);
 542                 updateLocal(bv, false);
 543                 break;
 544         }
 545
 546         case LFUN_PASTE:
 547                 if (was_macro)
 548                         mathcursor->macroModeClose();
 549                 bv->lockedInsetStoreUndo(Undo::EDIT);
 550                 mathcursor->selPaste();
 551                 updateLocal(bv, true);
 552                 break;
 553
 554         case LFUN_CUT:
 555                 bv->lockedInsetStoreUndo(Undo::DELETE);
 556                 mathcursor->selCut();
 557                 updateLocal(bv, true);
 558                 break;
 559
 560         case LFUN_COPY:
 561                 mathcursor->selCopy();
 562                 break;
 563
 564
 565         // Special casing for superscript in case of LyX handling
 566         // dead-keys:
 567         case LFUN_CIRCUMFLEX:
 568                 if (cmd.argument.empty()) {
 569                         // do superscript if LyX handles
 570                         // deadkeys
 571                         bv->lockedInsetStoreUndo(Undo::EDIT);
 572                         mathcursor->script(true);
 573                         updateLocal(bv, true);
 574                 }
 575                 break;
 576
 577         case LFUN_UMLAUT:
 578         case LFUN_ACUTE:
 579         case LFUN_GRAVE:
 580         case LFUN_BREVE:
 581         case LFUN_DOT:
 582         case LFUN_MACRON:
 583         case LFUN_CARON:
 584         case LFUN_TILDE:
 585         case LFUN_CEDILLA:
 586         case LFUN_CIRCLE:
 587         case LFUN_UNDERDOT:
 588         case LFUN_TIE:
 589         case LFUN_OGONEK:
 590         case LFUN_HUNG_UMLAUT:
 591                 break;
 592
 593         //  Math fonts
 594         case LFUN_GREEK_TOGGLE: handleFont(bv, cmd.argument, "lyxgreek"); break;
 595         case LFUN_BOLD:         handleFont(bv, cmd.argument, "textbf"); break;
 596         case LFUN_SANS:         handleFont(bv, cmd.argument, "textsf"); break;
 597         case LFUN_EMPH:         handleFont(bv, cmd.argument, "mathcal"); break;
 598         case LFUN_ROMAN:        handleFont(bv, cmd.argument, "mathrm"); break;
 599         case LFUN_CODE:         handleFont(bv, cmd.argument, "texttt"); break;
 600         case LFUN_FRAK:         handleFont(bv, cmd.argument, "mathfrak"); break;
 601         case LFUN_ITAL:         handleFont(bv, cmd.argument, "mathit"); break;
 602         case LFUN_NOUN:         handleFont(bv, cmd.argument, "mathbb"); break;
 603         case LFUN_FREE:         handleFont(bv, cmd.argument, "textrm"); break;
 604         case LFUN_DEFAULT:      handleFont(bv, cmd.argument, "textnormal"); break;
 605
 606         case LFUN_GREEK:
 607                 handleFont(bv, cmd.argument, "lyxgreek1");
 608                 if (cmd.argument.size())
 609                         mathcursor->interpret(cmd.argument);
 610                 break;
 611
 612         case LFUN_MATH_MODE:
 613                 if (mathcursor->currentMode())
 614                         handleFont(bv, cmd.argument, "textrm");
 615                 else {
 616                         mathcursor->niceInsert(MathAtom(new MathHullInset("simple")));
 617                         updateLocal(bv, true);
 618                 }
 619                 //bv->owner()->message(_("math text mode toggled"));
 620                 break;
 621
 622         case LFUN_MATH_SIZE:
 623 #if 0
 624                 if (!arg.empty()) {
 625                         bv->lockedInsetStoreUndo(Undo::EDIT);
 626                         mathcursor->setSize(arg);
 627                         updateLocal(bv, true);
 628                 }
 629 #endif
 630                 break;
 631
 632         case LFUN_INSERT_MATRIX:
 633                 if (!cmd.argument.empty()) {
 634                         bv->lockedInsetStoreUndo(Undo::EDIT);
 635                         mathcursor->interpret("matrix " + cmd.argument);
 636                         updateLocal(bv, true);
 637                 }
 638                 break;
 639
 640         case LFUN_SUPERSCRIPT:
 641         case LFUN_SUBSCRIPT:
 642         {
 643                 bv->lockedInsetStoreUndo(Undo::EDIT);
 644                 mathcursor->script(cmd.action == LFUN_SUPERSCRIPT);
 645                 updateLocal(bv, true);
 646                 break;
 647         }
 648
 649         case LFUN_MATH_DELIM:
 650         {
 651                 //lyxerr << "formulabase::LFUN_MATH_DELIM, arg: '" << arg << "'\n";
 652                 string ls;
 653                 string rs = split(cmd.argument, ls, ' ');
 654                 // Reasonable default values
 655                 if (ls.empty())
 656                         ls = '(';
 657                 if (rs.empty())
 658                         rs = ')';
 659
 660                 bv->lockedInsetStoreUndo(Undo::EDIT);
 661                 mathcursor->handleNest(MathAtom(new MathDelimInset(ls, rs)));
 662                 updateLocal(bv, true);
 663                 break;
 664         }
 665
 666         case LFUN_PROTECTEDSPACE:
 667         case LFUN_MATH_SPACE:
 668                 bv->lockedInsetStoreUndo(Undo::EDIT);
 669                 mathcursor->insert(MathAtom(new MathSpaceInset(",")));
 670                 updateLocal(bv, true);
 671                 break;
 672
 673         case LFUN_UNDO:
 674                 bv->owner()->message(_("Invalid action in math mode!"));
 675                 break;
 676
 677
 678         case LFUN_EXEC_COMMAND:
 679                 result = UNDISPATCHED;
 680                 break;
 681
 682         case LFUN_INSET_ERT:
 683                 // interpret this as if a backslash was typed
 684                 bv->lockedInsetStoreUndo(Undo::EDIT);
 685                 mathcursor->interpret('\\');
 686                 updateLocal(bv, true);
 687                 break;
 688
 689         case LFUN_BREAKPARAGRAPH:
 690         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
 691         case LFUN_BREAKPARAGRAPH_SKIP:
 692                 argument = "\n";
 693                 // fall through
 694
 695         case -1:
 696         case LFUN_INSERT_MATH:
 697         case LFUN_SELFINSERT:
 698                 if (!argument.empty()) {
 699                         bv->lockedInsetStoreUndo(Undo::EDIT);
 700                         if (argument.size() == 1)
 701                                 result = mathcursor->interpret(argument[0]) ? DISPATCHED : FINISHED_RIGHT;
 702                         else
 703                                 result = mathcursor->interpret(argument) ? DISPATCHED : FINISHED_RIGHT;
 704                         updateLocal(bv, true);
 705                 }
 706                 break;
 707
 708         case LFUN_MATH_PANEL:
 709                 result = UNDISPATCHED;
 710                 break;
 711
 712         case LFUN_ESCAPE:
 713                 if (mathcursor->selection())
 714                         mathcursor->selClear();
 715                 else
 716                         result = UNDISPATCHED;
 717                 break;
 718
 719         case LFUN_INSET_TOGGLE:
 720                 mathcursor->insetToggle();
 721                 updateLocal(bv, true);
 722                 break;
 723
 724         case LFUN_REF_INSERT:
 725                 //if (argument.empty()) {
 726                 //      InsetCommandParams p("ref");
 727                 //      owner_->getDialogs().createRef(p.getAsString());
 728                 //} else {
 729                 //      InsetCommandParams p;
 730                 //      p.setFromString(argument);
 731
 732                 //      InsetRef * inset = new InsetRef(p, *buffer_);
 733                 //      if (!insertInset(inset))
 734                 //              delete inset;
 735                 //      else
 736                 //              updateInset(inset, true);
 737                 //}
 738                 //
 739                 if (cmd.argument.empty()) {
 740                         InsetCommandParams p("ref");
 741                         bv->owner()->getDialogs().createRef(p.getAsString());
 742                 } else {
 743                         //mathcursor->handleNest(new InsetRef2);
 744                         //mathcursor->insert(arg);
 745                         mathcursor->insert(MathAtom(new RefInset(cmd.argument)));
 746                 }
 747                 updateLocal(bv, true);
 748                 break;
 749
 750         default:
 751                 result = UNDISPATCHED;
 752         }
 753
 754         mathcursor->normalize();
 755         mathcursor->touch();
 756
 757         lyx::Assert(mathcursor);
 758
 759         if (mathcursor->selection() || was_selection)
 760                 toggleInsetSelection(bv);
 761
 762         if (result == DISPATCHED || result == DISPATCHED_NOUPDATE ||
 763             result == UNDISPATCHED) {
 764                 fitInsetCursor(bv);
 765                 showInsetCursor(bv);
 766                 revealCodes(bv);
 767         } else {
 768                 releaseMathCursor(bv);
 769                 bv->unlockInset(this);
 770         }
 771
 772         return result;  // original version
 773 }
 774
 775
 776 void InsetFormulaBase::revealCodes(BufferView * bv) const
 777 {
 778         if (!mathcursor)
 779                 return;
 780         bv->owner()->message(mathcursor->info());
 781
 782 #if 0
 783         // write something to the minibuffer
 784         // translate to latex
 785         mathcursor->markInsert();
 786         ostringstream os;
 787         write(NULL, os);
 788         string str = os.str();
 789         mathcursor->markErase();
 790         string::size_type pos = 0;
 791         string res;
 792         for (string::iterator it = str.begin(); it != str.end(); ++it) {
 793                 if (*it == '\n')
 794                         res += ' ';
 795                 else if (*it == '\0') {
 796                         res += "  -X-  ";
 797                         pos = it - str.begin();
 798                 }
 799                 else
 800                         res += *it;
 801         }
 802         if (pos > 30)
 803                 res = res.substr(pos - 30);
 804         if (res.size() > 60)
 805                 res = res.substr(0, 60);
 806         bv->owner()->message(res);
 807 #endif
 808 }
 809
 810
 811 Inset::Code InsetFormulaBase::lyxCode() const
 812 {
 813         return Inset::MATH_CODE;
 814 }
 815
 816
 817 int InsetFormulaBase::ylow() const
 818 {
 819         return yo_ - ascent(view(), font_);
 820 }
 821
 822
 823 int InsetFormulaBase::yhigh() const
 824 {
 825         return yo_ + descent(view(), font_);
 826 }
 827
 828
 829 int InsetFormulaBase::xlow() const
 830 {
 831         return xo_;
 832 }
 833
 834
 835 int InsetFormulaBase::xhigh() const
 836 {
 837         return xo_ + width(view(), font_);
 838 }
 839
 840
 841 /////////////////////////////////////////////////////////////////////
 842
 843
 844 bool InsetFormulaBase::searchForward(BufferView * bv, string const & str,
 845                                      bool, bool)
 846 {
 847 #ifdef WITH_WARNINGS
 848 #warning pretty ugly
 849 #endif
 850         static InsetFormulaBase * lastformula = 0;
 851         static MathIterator current = MathIterator(ibegin(par().nucleus()));
 852         static MathArray ar;
 853         static string laststr;
 854
 855         if (lastformula != this || laststr != str) {
 856                 //lyxerr << "reset lastformula to " << this << "\n";
 857                 lastformula = this;
 858                 laststr = str;
 859                 current = ibegin(par().nucleus());
 860                 ar.clear();
 861                 mathed_parse_cell(ar, str);
 862         } else {
 863                 ++current;
 864         }
 865         //lyxerr << "searching '" << str << "' in " << this << ar << endl;
 866
 867         for (MathIterator it = current; it != iend(par().nucleus()); ++it) {
 868                 if (it.cell().matchpart(ar, it.back().pos_)) {
 869                         bv->unlockInset(bv->theLockingInset());
 870                         if (!bv->lockInset(this)) {
 871                                 lyxerr << "Cannot lock inset" << endl;
 872                                 return false;
 873                         }
 874                         delete mathcursor;
 875                         mathcursor = new MathCursor(this, true);
 876                         metrics(bv);
 877                         mathcursor->setSelection(it, ar.size());
 878                         current = it;
 879                         it.jump(ar.size());
 880                         updateLocal(bv, false);
 881                         return true;
 882                 }
 883         }
 884
 885         //lyxerr << "not found!\n";
 886         lastformula = 0;
 887         return false;
 888 }
 889
 890
 891 bool InsetFormulaBase::searchBackward(BufferView * bv, string const & what,
 892                                       bool a, bool b)
 893 {
 894         lyxerr[Debug::MATHED] << "searching backward not implemented in mathed\n";
 895         return searchForward(bv, what, a, b);
 896 }
 897
 898
 899 bool InsetFormulaBase::display() const
 900 {
 901         return par()->asHullInset() && par()->asHullInset()->display();
 902 }
 903
 904
 905 /////////////////////////////////////////////////////////////////////
 906
 907
 908 void mathDispatchCreation(FuncRequest const & cmd, bool display)
 909 {
 910         BufferView * bv = cmd.view();
 911         // use selection if available..
 912         //string sel;
 913         //if (action == LFUN_MATH_IMPORT_SELECTION)
 914         //      sel = "";
 915         //else
 916
 917         string sel = bv->getLyXText()->selectionAsString(bv->buffer(), false);
 918
 919         if (sel.empty()) {
 920                 InsetFormula * f = new InsetFormula(bv);
 921                 if (openNewInset(bv, f)) {
 922                         bv->theLockingInset()->
 923                                 localDispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
 924                         // don't do that also for LFUN_MATH_MODE unless you want end up with
 925                         // always changing to mathrm when opening an inlined inset
 926                         // -- I really hate "LyXfunc overloading"...
 927                         if (display)
 928                                 f->localDispatch(FuncRequest(bv, LFUN_MATH_DISPLAY));
 929                         f->localDispatch(FuncRequest(bv, LFUN_INSERT_MATH, cmd.argument));
 930                 }
 931         } else {
 932                 // create a macro if we see "\\newcommand" somewhere, and an ordinary
 933                 // formula otherwise
 934                 InsetFormulaBase * f;
 935                 if (sel.find("\\newcommand") == string::npos &&
 936                                 sel.find("\\def") == string::npos)
 937                         f = new InsetFormula(sel);
 938                 else
 939                         f = new InsetFormulaMacro(sel);
 940                 bv->getLyXText()->cutSelection(bv);
 941                 openNewInset(bv, f);
 942         }
 943         cmd.message(N_("Math editor mode"));
 944 }
 945
 946
 947 void mathDispatch(FuncRequest const & cmd)
 948 {
 949         BufferView * bv = cmd.view();
 950         if (!bv->available())
 951                 return;
 952
 953         switch (cmd.action) {
 954
 955                 case LFUN_MATH_DISPLAY:
 956                         mathDispatchCreation(cmd, true);
 957                         break;
 958
 959                 case LFUN_MATH_MODE:
 960                         mathDispatchCreation(cmd, false);
 961                         break;
 962
 963                 case LFUN_MATH_IMPORT_SELECTION:
 964                         mathDispatchCreation(cmd, false);
 965                         break;
 966
 967                 case LFUN_MATH_MACRO:
 968                         if (cmd.argument.empty())
 969                                 cmd.errorMessage(N_("Missing argument"));
 970                         else {
 971                                 string s = cmd.argument;
 972                                 string const s1 = token(s, ' ', 1);
 973                                 int const na = s1.empty() ? 0 : lyx::atoi(s1);
 974                                 openNewInset(bv, new InsetFormulaMacro(token(s, ' ', 0), na));
 975                         }
 976                         break;
 977
 978                 case LFUN_GREEK:
 979                 case LFUN_INSERT_MATH:
 980                 case LFUN_INSERT_MATRIX:
 981                 case LFUN_MATH_DELIM: {
 982                         InsetFormula * f = new InsetFormula(bv);
 983                         if (openNewInset(bv, f)) {
 984                                 bv->theLockingInset()->
 985                                         localDispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
 986                                 bv->theLockingInset()->localDispatch(cmd);
 987                         }
 988                         break;
 989                 }
 990                 default:
 991                         break;
 992         }
 993 }