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