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 using std::max;
  65
  66 MathCursor * mathcursor = 0;
  67
  68
  69 namespace {
  70
  71 // local global
  72 int first_x;
  73 int first_y;
  74
  75
  76
  77 bool openNewInset(BufferView * bv, UpdatableInset * new_inset)
  78 {
  79         if (!bv->insertInset(new_inset)) {
  80                 delete new_inset;
  81                 return false;
  82         }
  83         new_inset->edit(bv, true);
  84         return true;
  85 }
  86
  87
  88 } // namespace anon
  89
  90
  91
  92 InsetFormulaBase::InsetFormulaBase()
  93         : font_(), xo_(0), yo_(0)
  94 {
  95         // This is needed as long the math parser is not re-entrant
  96         initMath();
  97         //lyxerr << "sizeof MathInset: " << sizeof(MathInset) << "\n";
  98         //lyxerr << "sizeof MathMetricsInfo: " << sizeof(MathMetricsInfo) << "\n";
  99         //lyxerr << "sizeof MathCharInset: " << sizeof(MathCharInset) << "\n";
 100         //lyxerr << "sizeof LyXFont: " << sizeof(LyXFont) << "\n";
 101 }
 102
 103
 104 // simply scrap this function if you want
 105 void InsetFormulaBase::mutateToText()
 106 {
 107 #if 0
 108         // translate to latex
 109         ostringstream os;
 110         latex(NULL, os, false, false);
 111         string str = os.str();
 112
 113         // insert this text
 114         LyXText * lt = view_->getLyXText();
 115         string::const_iterator cit = str.begin();
 116         string::const_iterator end = str.end();
 117         for (; cit != end; ++cit)
 118                 view_->owner()->getIntl()->getTransManager().TranslateAndInsert(*cit, lt);
 119
 120         // remove ourselves
 121         //view_->owner()->dispatch(LFUN_ESCAPE);
 122 #endif
 123 }
 124
 125
 126 void InsetFormulaBase::handleFont
 127         (BufferView * bv, string const & arg, string const & font)
 128 {
 129         // this whole function is a hack and won't work for incremental font
 130         // changes...
 131         bv->lockedInsetStoreUndo(Undo::EDIT);
 132         if (mathcursor->par()->name() == font) {
 133                 mathcursor->handleFont(font);
 134                 updateLocal(bv, true);
 135         } else {
 136                 bool sel = mathcursor->selection();
 137                 if (sel)
 138                         updateLocal(bv, true);
 139                 mathcursor->handleNest(createMathInset(font));
 140                 mathcursor->insert(arg);
 141                 if (!sel)
 142                         updateLocal(bv, false);
 143         }
 144 }
 145
 146
 147 // Check if uses AMS macros
 148 void InsetFormulaBase::validate(LaTeXFeatures &) const
 149 {}
 150
 151
 152 void InsetFormulaBase::metrics(BufferView * bv, LyXFont const & f) const
 153 {
 154         font_ = f;
 155         metrics(bv);
 156 }
 157
 158
 159 void InsetFormulaBase::metrics(BufferView * bv) const
 160 {
 161         if (bv)
 162                 view_ = bv->owner()->view();
 163         MathMetricsInfo mi;
 164         mi.base.style = LM_ST_TEXT;
 165         mi.base.font  = font_;
 166         mi.base.font.setColor(LColor::math);
 167         par()->metrics(mi);
 168 }
 169
 170
 171 string const InsetFormulaBase::editMessage() const
 172 {
 173         return _("Math editor mode");
 174 }
 175
 176
 177 void InsetFormulaBase::edit(BufferView * bv, int x, int y, mouse_button::state)
 178 {
 179         if (!bv->lockInset(this))
 180                 lyxerr[Debug::MATHED] << "Cannot lock inset!!!" << endl;
 181         releaseMathCursor(bv);
 182         mathcursor = new MathCursor(this, true);
 183         metrics(bv);
 184         mathcursor->setPos(x + xo_, y + yo_);
 185         // if that is removed, we won't get the magenta box when entering an
 186         // inset for the first time
 187         bv->updateInset(this, false);
 188 }
 189
 190
 191 void InsetFormulaBase::edit(BufferView * bv, bool front)
 192 {
 193         if (!bv->lockInset(this))
 194                 lyxerr << "Cannot lock math inset in edit call!\n";
 195         releaseMathCursor(bv);
 196         mathcursor = new MathCursor(this, front);
 197         metrics(bv);
 198         bv->updateInset(this, false);
 199 }
 200
 201
 202 void InsetFormulaBase::insetUnlock(BufferView * bv)
 203 {
 204         if (mathcursor) {
 205                 if (mathcursor->inMacroMode()) {
 206                         mathcursor->macroModeClose();
 207                         updateLocal(bv, true);
 208                 }
 209                 releaseMathCursor(bv);
 210         }
 211         generatePreview();
 212         bv->updateInset(this, false);
 213 }
 214
 215
 216 void InsetFormulaBase::getCursorPos(BufferView *, int & x, int & y) const
 217 {
 218         // calling metrics here destroys the cached xo,yo positions e.g. in
 219         // MathParboxinset. And it would be too expensive anyway...
 220         //metrics(bv);
 221         if (!mathcursor) {
 222                 lyxerr << "getCursorPos - should not happen";
 223                 x = y = 0;
 224                 return;
 225         }
 226         mathcursor->getPos(x, y);
 227         x = mathcursor->targetX();
 228         x -= xo_;
 229         y -= yo_;
 230         //lyxerr << "getCursorPos: " << x << " " << y << "\n";
 231 }
 232
 233
 234 void InsetFormulaBase::toggleInsetCursor(BufferView * bv)
 235 {
 236         //lyxerr << "toggleInsetCursor: " << isCursorVisible() << "\n";
 237         if (isCursorVisible())
 238                 hideInsetCursor(bv);
 239         else
 240                 showInsetCursor(bv);
 241 }
 242
 243
 244 void InsetFormulaBase::showInsetCursor(BufferView * bv, bool)
 245 {
 246         if (!mathcursor) {
 247                 lyxerr << "showInsetCursor impossible\n";
 248                 return;
 249         }
 250         if (isCursorVisible())
 251                 return;
 252         int x, y, asc, des;
 253         mathcursor->getPos(x, y);
 254         math_font_max_dim(font_, asc, des);
 255         bv->showLockedInsetCursor(x, y - yo_, asc, des);
 256         setCursorVisible(true);
 257         //lyxerr << "showInsetCursor: " << x << " " << y << "\n";
 258 }
 259
 260
 261 void InsetFormulaBase::hideInsetCursor(BufferView * bv)
 262 {
 263         if (!mathcursor)
 264                 return;
 265         if (!isCursorVisible())
 266                 return;
 267         bv->hideLockedInsetCursor();
 268         setCursorVisible(false);
 269         //lyxerr << "hideInsetCursor: \n";
 270 }
 271
 272
 273 void InsetFormulaBase::fitInsetCursor(BufferView * bv) const
 274 {
 275         if (!mathcursor)
 276                 return;
 277         int x, y, asc, des;
 278         math_font_max_dim(font_, asc, des);
 279         getCursorPos(bv, x, y);
 280         //y += yo_;
 281         //lyxerr << "fitInsetCursor: x: " << x << " y: " << y << " yo: " << yo_ << "\n";
 282         bv->fitLockedInsetCursor(x, y, asc, des);
 283 }
 284
 285
 286 void InsetFormulaBase::toggleInsetSelection(BufferView * bv)
 287 {
 288         if (mathcursor)
 289                 bv->updateInset(this, false);
 290 }
 291
 292
 293 vector<string> const InsetFormulaBase::getLabelList() const
 294 {
 295   return vector<string>();
 296 }
 297
 298
 299 void InsetFormulaBase::updateLocal(BufferView * bv, bool dirty)
 300 {
 301         bv->updateInset(this, dirty);
 302 }
 303
 304
 305 Inset::RESULT InsetFormulaBase::lfunMouseRelease(FuncRequest const & cmd)
 306 {
 307         if (!mathcursor)
 308                 return UNDISPATCHED;
 309
 310         BufferView * bv = cmd.view();
 311         hideInsetCursor(bv);
 312         showInsetCursor(bv);
 313         bv->updateInset(this, false);
 314         //lyxerr << "lfunMouseRelease: buttons: " << cmd.button() << "\n";
 315
 316         if (cmd.button() == mouse_button::button3) {
 317                 // try to dispatch to enclosed insets first
 318                 if (mathcursor->dispatch(cmd) == MathInset::UNDISPATCHED) {
 319                         // launch math panel for right mouse button
 320                         bv->owner()->getDialogs().showMathPanel();
 321                 }
 322                 return DISPATCHED;
 323         }
 324
 325         if (cmd.button() == mouse_button::button2) {
 326                 mathcursor->selClear();
 327                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 328                 mathcursor->insert(asArray(bv->getClipboard()));
 329                 bv->updateInset(this, true);
 330                 return DISPATCHED;
 331         }
 332
 333         if (cmd.button() == mouse_button::button1) {
 334                 // try to dispatch to enclosed insets first
 335                 mathcursor->dispatch(cmd);
 336                 cmd.view()->stuffClipboard(mathcursor->grabSelection());
 337                 // try to set the cursor
 338                 //delete mathcursor;
 339                 //mathcursor = new MathCursor(this, x == 0);
 340                 //metrics(bv);
 341                 //mathcursor->setPos(x + xo_, y + yo_);
 342                 return DISPATCHED;
 343         }
 344
 345         return UNDISPATCHED;
 346 }
 347
 348
 349 Inset::RESULT InsetFormulaBase::lfunMousePress(FuncRequest const & cmd)
 350 {
 351         BufferView * bv = cmd.view();
 352         //lyxerr << "lfunMousePress: buttons: " << cmd.button() << "\n";
 353
 354         if (!mathcursor || mathcursor->formula() != this) {
 355                 lyxerr << "re-create cursor\n";
 356                 releaseMathCursor(bv);
 357                 mathcursor = new MathCursor(this, cmd.x == 0);
 358                 metrics(bv);
 359                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 360         }
 361
 362         if (cmd.button() == mouse_button::button3) {
 363                 mathcursor->dispatch(cmd);
 364                 return DISPATCHED;
 365         }
 366
 367         if (cmd.button() == mouse_button::button1) {
 368                 first_x = cmd.x;
 369                 first_y = cmd.y;
 370                 mathcursor->selClear();
 371                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 372                 mathcursor->dispatch(cmd);
 373                 return DISPATCHED;
 374         }
 375
 376         bv->updateInset(this, false);
 377         return DISPATCHED;
 378 }
 379
 380
 381 Inset::RESULT InsetFormulaBase::lfunMouseMotion(FuncRequest const & cmd)
 382 {
 383         if (!mathcursor)
 384                 return DISPATCHED;
 385
 386         if (mathcursor->dispatch(FuncRequest(cmd)) != MathInset::UNDISPATCHED)
 387                 return DISPATCHED;
 388
 389         // only select with button 1
 390         if (cmd.button() != mouse_button::button1)
 391                 return DISPATCHED;
 392
 393         if (abs(cmd.x - first_x) < 2 && abs(cmd.y - first_y) < 2)
 394                 return DISPATCHED;
 395
 396         first_x = cmd.x;
 397         first_y = cmd.y;
 398
 399         if (!mathcursor->selection())
 400                 mathcursor->selStart();
 401
 402         BufferView * bv = cmd.view();
 403         hideInsetCursor(bv);
 404         mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 405         showInsetCursor(bv);
 406         bv->updateInset(this, false);
 407         return DISPATCHED;
 408 }
 409
 410
 411 Inset::RESULT InsetFormulaBase::localDispatch(FuncRequest const & cmd)
 412 {
 413         //lyxerr << "InsetFormulaBase::localDispatch: act: " << cmd.action
 414         //      << " arg: '" << cmd.argument
 415         //      << " x: '" << cmd.x
 416         //      << " y: '" << cmd.y
 417         //      << "' button: " << cmd.button() << "\n";
 418
 419         switch (cmd.action) {
 420                 case LFUN_MOUSE_PRESS:
 421                         return lfunMousePress(cmd);
 422                 case LFUN_MOUSE_MOTION:
 423                         return lfunMouseMotion(cmd);
 424                 case LFUN_MOUSE_RELEASE:
 425                         return lfunMouseRelease(cmd);
 426                 case LFUN_MOUSE_DOUBLE:
 427                         //lyxerr << "Mouse double\n";
 428                         return localDispatch(FuncRequest(LFUN_WORDSEL));
 429                 default:
 430                         break;
 431         }
 432
 433         if (!mathcursor)
 434                 return UNDISPATCHED;
 435
 436         BufferView * bv    = cmd.view();
 437         string argument    = cmd.argument;
 438         RESULT result      = DISPATCHED;
 439         bool sel           = false;
 440         bool was_macro     = mathcursor->inMacroMode();
 441         bool was_selection = mathcursor->selection();
 442
 443         hideInsetCursor(bv);
 444
 445         mathcursor->normalize();
 446         mathcursor->touch();
 447
 448         switch (cmd.action) {
 449
 450         case LFUN_MATH_MUTATE:
 451         case LFUN_MATH_DISPLAY:
 452         case LFUN_MATH_NUMBER:
 453         case LFUN_MATH_NONUMBER:
 454         case LFUN_TABINSERT:
 455         case LFUN_BREAKLINE:
 456         case LFUN_DELETE_LINE_FORWARD:
 457         case LFUN_INSERT_LABEL:
 458         case LFUN_MATH_EXTERN:
 459         case LFUN_TABULAR_FEATURE:
 460         case LFUN_PASTESELECTION:
 461         case LFUN_MATH_LIMITS:
 462                 bv->lockedInsetStoreUndo(Undo::EDIT);
 463                 mathcursor->dispatch(cmd);
 464                 updateLocal(bv, true);
 465                 break;
 466
 467         case LFUN_RIGHTSEL:
 468                 sel = true; // fall through...
 469         case LFUN_RIGHT:
 470                 result = mathcursor->right(sel) ? DISPATCHED : FINISHED_RIGHT;
 471                 //lyxerr << "calling scroll 20\n";
 472                 //scroll(bv, 20);
 473                 updateLocal(bv, false);
 474                 // write something to the minibuffer
 475                 //bv->owner()->message(mathcursor->info());
 476                 break;
 477
 478         case LFUN_LEFTSEL:
 479                 sel = true; // fall through
 480         case LFUN_LEFT:
 481                 result = mathcursor->left(sel) ? DISPATCHED : FINISHED;
 482                 updateLocal(bv, false);
 483                 break;
 484
 485         case LFUN_UPSEL:
 486                 sel = true; // fall through
 487         case LFUN_UP:
 488                 result = mathcursor->up(sel) ? DISPATCHED : FINISHED_UP;
 489                 updateLocal(bv, false);
 490                 break;
 491
 492         case LFUN_DOWNSEL:
 493                 sel = true; // fall through
 494         case LFUN_DOWN:
 495                 result = mathcursor->down(sel) ? DISPATCHED : FINISHED_DOWN;
 496                 updateLocal(bv, false);
 497                 break;
 498
 499         case LFUN_WORDSEL:
 500                 mathcursor->home(false);
 501                 mathcursor->end(true);
 502                 updateLocal(bv, false);
 503                 break;
 504
 505         case LFUN_HOMESEL:
 506         case LFUN_WORDLEFTSEL:
 507                 sel = true; // fall through
 508         case LFUN_HOME:
 509         case LFUN_WORDLEFT:
 510                 result = mathcursor->home(sel) ? DISPATCHED : FINISHED;
 511                 updateLocal(bv, false);
 512                 break;
 513
 514         case LFUN_ENDSEL:
 515         case LFUN_WORDRIGHTSEL:
 516                 sel = true; // fall through
 517         case LFUN_END:
 518         case LFUN_WORDRIGHT:
 519                 result = mathcursor->end(sel) ? DISPATCHED : FINISHED_RIGHT;
 520                 updateLocal(bv, false);
 521                 break;
 522
 523         case LFUN_PRIORSEL:
 524         case LFUN_PRIOR:
 525         case LFUN_BEGINNINGBUFSEL:
 526         case LFUN_BEGINNINGBUF:
 527                 result = FINISHED_UP;
 528                 updateLocal(bv, false);
 529                 break;
 530
 531         case LFUN_NEXTSEL:
 532         case LFUN_NEXT:
 533         case LFUN_ENDBUFSEL:
 534         case LFUN_ENDBUF:
 535                 result = FINISHED_DOWN;
 536                 updateLocal(bv, false);
 537                 break;
 538
 539         case LFUN_TAB:
 540                 mathcursor->idxNext();
 541                 updateLocal(bv, false);
 542                 break;
 543
 544         case LFUN_SHIFT_TAB:
 545                 mathcursor->idxPrev();
 546                 updateLocal(bv, false);
 547                 break;
 548
 549         case LFUN_DELETE_WORD_BACKWARD:
 550         case LFUN_BACKSPACE:
 551                 bv->lockedInsetStoreUndo(Undo::DELETE);
 552                 mathcursor->backspace();
 553                 updateLocal(bv, true);
 554                 break;
 555
 556         case LFUN_DELETE_WORD_FORWARD:
 557         case LFUN_DELETE:
 558                 bv->lockedInsetStoreUndo(Undo::DELETE);
 559                 mathcursor->erase();
 560                 bv->updateInset(this, true);
 561                 break;
 562
 563         //    case LFUN_GETXY:
 564         //      sprintf(dispatch_buffer, "%d %d",);
 565         //      dispatch_result = dispatch_buffer;
 566         //      break;
 567         case LFUN_SETXY: {
 568                 lyxerr << "LFUN_SETXY broken!\n";
 569                 int x = 0;
 570                 int y = 0;
 571                 istringstream is(cmd.argument.c_str());
 572                 is >> x >> y;
 573                 mathcursor->setPos(x, y);
 574                 updateLocal(bv, false);
 575                 break;
 576         }
 577
 578         case LFUN_PASTE:
 579                 if (was_macro)
 580                         mathcursor->macroModeClose();
 581                 bv->lockedInsetStoreUndo(Undo::EDIT);
 582                 mathcursor->selPaste();
 583                 updateLocal(bv, true);
 584                 break;
 585
 586         case LFUN_CUT:
 587                 bv->lockedInsetStoreUndo(Undo::DELETE);
 588                 mathcursor->selCut();
 589                 updateLocal(bv, true);
 590                 break;
 591
 592         case LFUN_COPY:
 593                 mathcursor->selCopy();
 594                 break;
 595
 596
 597         // Special casing for superscript in case of LyX handling
 598         // dead-keys:
 599         case LFUN_CIRCUMFLEX:
 600                 if (cmd.argument.empty()) {
 601                         // do superscript if LyX handles
 602                         // deadkeys
 603                         bv->lockedInsetStoreUndo(Undo::EDIT);
 604                         mathcursor->script(true);
 605                         updateLocal(bv, true);
 606                 }
 607                 break;
 608
 609         case LFUN_UMLAUT:
 610         case LFUN_ACUTE:
 611         case LFUN_GRAVE:
 612         case LFUN_BREVE:
 613         case LFUN_DOT:
 614         case LFUN_MACRON:
 615         case LFUN_CARON:
 616         case LFUN_TILDE:
 617         case LFUN_CEDILLA:
 618         case LFUN_CIRCLE:
 619         case LFUN_UNDERDOT:
 620         case LFUN_TIE:
 621         case LFUN_OGONEK:
 622         case LFUN_HUNG_UMLAUT:
 623                 break;
 624
 625         //  Math fonts
 626         case LFUN_GREEK_TOGGLE: handleFont(bv, cmd.argument, "lyxgreek"); break;
 627         case LFUN_BOLD:         handleFont(bv, cmd.argument, "mathbf"); break;
 628         case LFUN_SANS:         handleFont(bv, cmd.argument, "mathsf"); break;
 629         case LFUN_EMPH:         handleFont(bv, cmd.argument, "mathcal"); break;
 630         case LFUN_ROMAN:        handleFont(bv, cmd.argument, "mathrm"); break;
 631         case LFUN_CODE:         handleFont(bv, cmd.argument, "texttt"); break;
 632         case LFUN_FRAK:         handleFont(bv, cmd.argument, "mathfrak"); break;
 633         case LFUN_ITAL:         handleFont(bv, cmd.argument, "mathit"); break;
 634         case LFUN_NOUN:         handleFont(bv, cmd.argument, "mathbb"); break;
 635         case LFUN_FREE:         handleFont(bv, cmd.argument, "textrm"); break;
 636         case LFUN_DEFAULT:      handleFont(bv, cmd.argument, "textnormal"); break;
 637
 638         case LFUN_GREEK:
 639                 handleFont(bv, cmd.argument, "lyxgreek1");
 640                 if (cmd.argument.size())
 641                         mathcursor->insert(asArray(cmd.argument));
 642                 break;
 643
 644         case LFUN_MATH_MODE:
 645                 if (mathcursor->currentMode() == MathInset::TEXT_MODE) {
 646                         mathcursor->niceInsert(MathAtom(new MathHullInset("simple")));
 647                         updateLocal(bv, true);
 648                 } else {
 649                         handleFont(bv, cmd.argument, "textrm");
 650                 }
 651                 //bv->owner()->message(_("math text mode toggled"));
 652                 break;
 653
 654         case LFUN_MATH_SIZE:
 655 #if 0
 656                 if (!arg.empty()) {
 657                         bv->lockedInsetStoreUndo(Undo::EDIT);
 658                         mathcursor->setSize(arg);
 659                         updateLocal(bv, true);
 660                 }
 661 #endif
 662                 break;
 663
 664         case LFUN_INSERT_MATRIX: {
 665                 bv->lockedInsetStoreUndo(Undo::EDIT);
 666                 unsigned int m = 1;
 667                 unsigned int n = 1;
 668                 string v_align;
 669                 string h_align;
 670                 istringstream is(STRCONV(argument));
 671                 is >> m >> n >> v_align >> h_align;
 672                 m = max(1u, m);
 673                 n = max(1u, n);
 674                 v_align += 'c';
 675                 mathcursor->niceInsert(
 676                         MathAtom(new MathArrayInset("array", m, n, v_align[0], h_align)));
 677                         updateLocal(bv, true);
 678                 break;
 679         }
 680
 681         case LFUN_SUPERSCRIPT:
 682         case LFUN_SUBSCRIPT:
 683         {
 684                 bv->lockedInsetStoreUndo(Undo::EDIT);
 685                 mathcursor->script(cmd.action == LFUN_SUPERSCRIPT);
 686                 updateLocal(bv, true);
 687                 break;
 688         }
 689
 690         case LFUN_MATH_DELIM:
 691         {
 692                 //lyxerr << "formulabase::LFUN_MATH_DELIM, arg: '" << arg << "'\n";
 693                 string ls;
 694                 string rs = split(cmd.argument, ls, ' ');
 695                 // Reasonable default values
 696                 if (ls.empty())
 697                         ls = '(';
 698                 if (rs.empty())
 699                         rs = ')';
 700
 701                 bv->lockedInsetStoreUndo(Undo::EDIT);
 702                 mathcursor->handleNest(MathAtom(new MathDelimInset(ls, rs)));
 703                 updateLocal(bv, true);
 704                 break;
 705         }
 706
 707         case LFUN_PROTECTEDSPACE:
 708         case LFUN_MATH_SPACE:
 709                 bv->lockedInsetStoreUndo(Undo::EDIT);
 710                 mathcursor->insert(MathAtom(new MathSpaceInset(",")));
 711                 updateLocal(bv, true);
 712                 break;
 713
 714         case LFUN_UNDO:
 715                 bv->owner()->message(_("Invalid action in math mode!"));
 716                 break;
 717
 718
 719         case LFUN_EXEC_COMMAND:
 720                 result = UNDISPATCHED;
 721                 break;
 722
 723         case LFUN_INSET_ERT:
 724                 // interpret this as if a backslash was typed
 725                 bv->lockedInsetStoreUndo(Undo::EDIT);
 726                 mathcursor->interpret('\\');
 727                 updateLocal(bv, true);
 728                 break;
 729
 730         case LFUN_BREAKPARAGRAPH:
 731         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
 732         case LFUN_BREAKPARAGRAPH_SKIP:
 733                 argument = "\n";
 734                 // fall through
 735
 736 // FIXME: We probably should swap parts of "math-insert" and "self-insert"
 737 // handling such that "self-insert" works on "arbitrary stuff" too, and
 738 // math-insert only handles special math things like "matrix".
 739         case LFUN_INSERT_MATH:
 740                 bv->lockedInsetStoreUndo(Undo::EDIT);
 741                 mathcursor->niceInsert(argument);
 742                 updateLocal(bv, true);
 743                 break;
 744
 745         case -1:
 746         case LFUN_SELFINSERT:
 747                 if (!argument.empty()) {
 748                         bv->lockedInsetStoreUndo(Undo::EDIT);
 749                         if (argument.size() == 1)
 750                                 result = mathcursor->interpret(argument[0]) ? DISPATCHED : FINISHED_RIGHT;
 751                         else
 752                                 mathcursor->insert(asArray(argument));
 753                         updateLocal(bv, true);
 754                 }
 755                 break;
 756
 757         case LFUN_MATH_PANEL:
 758                 result = UNDISPATCHED;
 759                 break;
 760
 761         case LFUN_ESCAPE:
 762                 if (mathcursor->selection())
 763                         mathcursor->selClear();
 764                 else
 765                         result = UNDISPATCHED;
 766                 break;
 767
 768         case LFUN_INSET_TOGGLE:
 769                 mathcursor->insetToggle();
 770                 updateLocal(bv, true);
 771                 break;
 772
 773         case LFUN_REF_INSERT:
 774                 //if (argument.empty()) {
 775                 //      InsetCommandParams p("ref");
 776                 //      owner_->getDialogs().createRef(p.getAsString());
 777                 //} else {
 778                 //      InsetCommandParams p;
 779                 //      p.setFromString(argument);
 780
 781                 //      InsetRef * inset = new InsetRef(p, *buffer_);
 782                 //      if (!insertInset(inset))
 783                 //              delete inset;
 784                 //      else
 785                 //              updateInset(inset, true);
 786                 //}
 787                 //
 788                 if (cmd.argument.empty()) {
 789                         InsetCommandParams p("ref");
 790                         bv->owner()->getDialogs().createRef(p.getAsString());
 791                 } else {
 792                         //mathcursor->handleNest(new InsetRef2);
 793                         //mathcursor->insert(arg);
 794                         mathcursor->insert(MathAtom(new RefInset(cmd.argument)));
 795                 }
 796                 updateLocal(bv, true);
 797                 break;
 798
 799         default:
 800                 result = UNDISPATCHED;
 801         }
 802
 803         mathcursor->normalize();
 804         mathcursor->touch();
 805
 806         lyx::Assert(mathcursor);
 807
 808         if (mathcursor->selection() || was_selection)
 809                 toggleInsetSelection(bv);
 810
 811         if (result == DISPATCHED || result == DISPATCHED_NOUPDATE ||
 812             result == UNDISPATCHED) {
 813                 fitInsetCursor(bv);
 814                 showInsetCursor(bv);
 815                 revealCodes(bv);
 816                 cmd.view()->stuffClipboard(mathcursor->grabSelection());
 817         } else {
 818                 releaseMathCursor(bv);
 819                 bv->unlockInset(this);
 820         }
 821
 822         return result;  // original version
 823 }
 824
 825
 826 void InsetFormulaBase::revealCodes(BufferView * bv) const
 827 {
 828         if (!mathcursor)
 829                 return;
 830         bv->owner()->message(mathcursor->info());
 831
 832 #if 0
 833         // write something to the minibuffer
 834         // translate to latex
 835         mathcursor->markInsert();
 836         ostringstream os;
 837         write(NULL, os);
 838         string str = os.str();
 839         mathcursor->markErase();
 840         string::size_type pos = 0;
 841         string res;
 842         for (string::iterator it = str.begin(); it != str.end(); ++it) {
 843                 if (*it == '\n')
 844                         res += ' ';
 845                 else if (*it == '\0') {
 846                         res += "  -X-  ";
 847                         pos = it - str.begin();
 848                 }
 849                 else
 850                         res += *it;
 851         }
 852         if (pos > 30)
 853                 res = res.substr(pos - 30);
 854         if (res.size() > 60)
 855                 res = res.substr(0, 60);
 856         bv->owner()->message(res);
 857 #endif
 858 }
 859
 860
 861 Inset::Code InsetFormulaBase::lyxCode() const
 862 {
 863         return Inset::MATH_CODE;
 864 }
 865
 866
 867 int InsetFormulaBase::ylow() const
 868 {
 869         return yo_ - ascent(view(), font_);
 870 }
 871
 872
 873 int InsetFormulaBase::yhigh() const
 874 {
 875         return yo_ + descent(view(), font_);
 876 }
 877
 878
 879 int InsetFormulaBase::xlow() const
 880 {
 881         return xo_;
 882 }
 883
 884
 885 int InsetFormulaBase::xhigh() const
 886 {
 887         return xo_ + width(view(), font_);
 888 }
 889
 890
 891 /////////////////////////////////////////////////////////////////////
 892
 893
 894 bool InsetFormulaBase::searchForward(BufferView * bv, string const & str,
 895                                      bool, bool)
 896 {
 897 #ifdef WITH_WARNINGS
 898 #warning pretty ugly
 899 #endif
 900         static InsetFormulaBase * lastformula = 0;
 901         static MathIterator current = MathIterator(ibegin(par().nucleus()));
 902         static MathArray ar;
 903         static string laststr;
 904
 905         if (lastformula != this || laststr != str) {
 906                 //lyxerr << "reset lastformula to " << this << "\n";
 907                 lastformula = this;
 908                 laststr = str;
 909                 current = ibegin(par().nucleus());
 910                 ar.clear();
 911                 mathed_parse_cell(ar, str);
 912         } else {
 913                 ++current;
 914         }
 915         //lyxerr << "searching '" << str << "' in " << this << ar << endl;
 916
 917         for (MathIterator it = current; it != iend(par().nucleus()); ++it) {
 918                 if (it.cell().matchpart(ar, it.back().pos_)) {
 919                         bv->unlockInset(bv->theLockingInset());
 920                         if (!bv->lockInset(this)) {
 921                                 lyxerr << "Cannot lock inset" << endl;
 922                                 return false;
 923                         }
 924                         delete mathcursor;
 925                         mathcursor = new MathCursor(this, true);
 926                         metrics(bv);
 927                         mathcursor->setSelection(it, ar.size());
 928                         current = it;
 929                         it.jump(ar.size());
 930                         updateLocal(bv, false);
 931                         return true;
 932                 }
 933         }
 934
 935         //lyxerr << "not found!\n";
 936         lastformula = 0;
 937         return false;
 938 }
 939
 940
 941 bool InsetFormulaBase::searchBackward(BufferView * bv, string const & what,
 942                                       bool a, bool b)
 943 {
 944         lyxerr[Debug::MATHED] << "searching backward not implemented in mathed\n";
 945         return searchForward(bv, what, a, b);
 946 }
 947
 948
 949 bool InsetFormulaBase::display() const
 950 {
 951         return par()->asHullInset() && par()->asHullInset()->display();
 952 }
 953
 954
 955 string InsetFormulaBase::selectionAsString() const
 956 {
 957         return mathcursor ? mathcursor->grabSelection() : string();
 958 }
 959
 960 /////////////////////////////////////////////////////////////////////
 961
 962
 963 void mathDispatchCreation(FuncRequest const & cmd, bool display)
 964 {
 965         BufferView * bv = cmd.view();
 966         // use selection if available..
 967         //string sel;
 968         //if (action == LFUN_MATH_IMPORT_SELECTION)
 969         //      sel = "";
 970         //else
 971
 972         string sel = bv->getLyXText()->selectionAsString(bv->buffer(), false);
 973
 974         if (sel.empty()) {
 975                 InsetFormula * f = new InsetFormula(bv);
 976                 if (openNewInset(bv, f)) {
 977                         bv->theLockingInset()->
 978                                 localDispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
 979                         // don't do that also for LFUN_MATH_MODE unless you want end up with
 980                         // always changing to mathrm when opening an inlined inset
 981                         // -- I really hate "LyXfunc overloading"...
 982                         if (display)
 983                                 f->localDispatch(FuncRequest(bv, LFUN_MATH_DISPLAY));
 984                         f->localDispatch(FuncRequest(bv, LFUN_INSERT_MATH, cmd.argument));
 985                 }
 986         } else {
 987                 // create a macro if we see "\\newcommand" somewhere, and an ordinary
 988                 // formula otherwise
 989                 InsetFormulaBase * f;
 990                 if (sel.find("\\newcommand") == string::npos &&
 991                                 sel.find("\\def") == string::npos)
 992                         f = new InsetFormula(sel);
 993                 else
 994                         f = new InsetFormulaMacro(sel);
 995                 bv->getLyXText()->cutSelection(bv);
 996                 openNewInset(bv, f);
 997         }
 998         cmd.message(N_("Math editor mode"));
 999 }
1000
1001
1002 void mathDispatch(FuncRequest const & cmd)
1003 {
1004         BufferView * bv = cmd.view();
1005         if (!bv->available())
1006                 return;
1007
1008         switch (cmd.action) {
1009
1010                 case LFUN_MATH_DISPLAY:
1011                         mathDispatchCreation(cmd, true);
1012                         break;
1013
1014                 case LFUN_MATH_MODE:
1015                         mathDispatchCreation(cmd, false);
1016                         break;
1017
1018                 case LFUN_MATH_IMPORT_SELECTION:
1019                         mathDispatchCreation(cmd, false);
1020                         break;
1021
1022                 case LFUN_MATH_MACRO:
1023                         if (cmd.argument.empty())
1024                                 cmd.errorMessage(N_("Missing argument"));
1025                         else {
1026                                 string s = cmd.argument;
1027                                 string const s1 = token(s, ' ', 1);
1028                                 int const na = s1.empty() ? 0 : lyx::atoi(s1);
1029                                 openNewInset(bv, new InsetFormulaMacro(token(s, ' ', 0), na));
1030                         }
1031                         break;
1032
1033                 case LFUN_GREEK:
1034                 case LFUN_INSERT_MATH:
1035                 case LFUN_INSERT_MATRIX:
1036                 case LFUN_MATH_DELIM: {
1037                         InsetFormula * f = new InsetFormula(bv);
1038                         if (openNewInset(bv, f)) {
1039                                 bv->theLockingInset()->
1040                                         localDispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
1041                                 bv->theLockingInset()->localDispatch(cmd);
1042                         }
1043                         break;
1044                 }
1045                 default:
1046                         break;
1047         }
1048 }