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
  22 #include "formula.h"
  23 #include "formulamacro.h"
  24 #include "lyxrc.h"
  25 #include "funcrequest.h"
  26 #include "BufferView.h"
  27 #include "lyxtext.h"
  28 #include "gettext.h"
  29 #include "LaTeXFeatures.h"
  30 #include "debug.h"
  31 #include "math_support.h"
  32 #include "math_metricsinfo.h"
  33 #include "support/lstrings.h"
  34 #include "frontends/LyXView.h"
  35 #include "frontends/font_metrics.h"
  36 #include "frontends/mouse_state.h"
  37 #include "Lsstream.h"
  38 #include "math_arrayinset.h"
  39 #include "math_charinset.h"
  40 #include "math_deliminset.h"
  41 #include "math_cursor.h"
  42 #include "math_factory.h"
  43 #include "math_fontinset.h"
  44 #include "math_hullinset.h"
  45 #include "math_iterator.h"
  46 #include "math_macrotable.h"
  47 #include "math_parser.h"
  48 #include "math_pos.h"
  49 #include "math_spaceinset.h"
  50 #include "undo_funcs.h"
  51 #include "textpainter.h"
  52 #include "frontends/Dialogs.h"
  53 #include "intl.h"
  54 #include "ref_inset.h"
  55
  56 using std::endl;
  57 using std::ostream;
  58 using std::vector;
  59 using std::abs;
  60 using std::max;
  61
  62 MathCursor * mathcursor = 0;
  63
  64
  65 namespace {
  66
  67 // local global
  68 int first_x;
  69 int first_y;
  70
  71
  72
  73 bool openNewInset(BufferView * bv, UpdatableInset * new_inset)
  74 {
  75         if (!bv->insertInset(new_inset)) {
  76                 delete new_inset;
  77                 return false;
  78         }
  79         new_inset->edit(bv, true);
  80         return true;
  81 }
  82
  83
  84 } // namespace anon
  85
  86
  87
  88 InsetFormulaBase::InsetFormulaBase()
  89         : font_(), xo_(0), yo_(0)
  90 {
  91         // This is needed as long the math parser is not re-entrant
  92         initMath();
  93         //lyxerr << "sizeof MathInset: " << sizeof(MathInset) << "\n";
  94         //lyxerr << "sizeof MathMetricsInfo: " << sizeof(MathMetricsInfo) << "\n";
  95         //lyxerr << "sizeof MathCharInset: " << sizeof(MathCharInset) << "\n";
  96         //lyxerr << "sizeof LyXFont: " << sizeof(LyXFont) << "\n";
  97 }
  98
  99
 100 // simply scrap this function if you want
 101 void InsetFormulaBase::mutateToText()
 102 {
 103 #if 0
 104         // translate to latex
 105         ostringstream os;
 106         latex(NULL, os, false, false);
 107         string str = os.str();
 108
 109         // insert this text
 110         LyXText * lt = view_->getLyXText();
 111         string::const_iterator cit = str.begin();
 112         string::const_iterator end = str.end();
 113         for (; cit != end; ++cit)
 114                 view_->owner()->getIntl()->getTransManager().TranslateAndInsert(*cit, lt);
 115
 116         // remove ourselves
 117         //view_->owner()->dispatch(LFUN_ESCAPE);
 118 #endif
 119 }
 120
 121
 122 void InsetFormulaBase::handleFont
 123         (BufferView * bv, string const & arg, string const & font)
 124 {
 125         // this whole function is a hack and won't work for incremental font
 126         // changes...
 127         bv->lockedInsetStoreUndo(Undo::EDIT);
 128         if (mathcursor->par()->name() == font) {
 129                 mathcursor->handleFont(font);
 130                 updateLocal(bv, true);
 131         } else {
 132                 bool sel = mathcursor->selection();
 133                 if (sel)
 134                         updateLocal(bv, true);
 135                 mathcursor->handleNest(createMathInset(font));
 136                 mathcursor->insert(arg);
 137                 if (!sel)
 138                         updateLocal(bv, false);
 139         }
 140 }
 141
 142
 143 // Check if uses AMS macros
 144 void InsetFormulaBase::validate(LaTeXFeatures &) const
 145 {}
 146
 147
 148 void InsetFormulaBase::metrics(BufferView * bv, LyXFont const & f) const
 149 {
 150         font_ = f;
 151         metrics(bv);
 152 }
 153
 154
 155 void InsetFormulaBase::metrics(BufferView * bv) const
 156 {
 157         if (bv)
 158                 view_ = bv->owner()->view();
 159         MathMetricsInfo mi;
 160         mi.base.style = LM_ST_TEXT;
 161         mi.base.font  = font_;
 162         mi.base.font.setColor(LColor::math);
 163         par()->metrics(mi);
 164 }
 165
 166
 167 string const InsetFormulaBase::editMessage() const
 168 {
 169         return _("Math editor mode");
 170 }
 171
 172
 173 void InsetFormulaBase::edit(BufferView * bv, int x, int y, mouse_button::state)
 174 {
 175         if (!bv->lockInset(this))
 176                 lyxerr[Debug::MATHED] << "Cannot lock inset!!!" << endl;
 177         releaseMathCursor(bv);
 178         mathcursor = new MathCursor(this, true);
 179         metrics(bv);
 180         mathcursor->setPos(x + xo_, y + yo_);
 181         // if that is removed, we won't get the magenta box when entering an
 182         // inset for the first time
 183         bv->updateInset(this, false);
 184 }
 185
 186
 187 void InsetFormulaBase::edit(BufferView * bv, bool front)
 188 {
 189         if (!bv->lockInset(this))
 190                 lyxerr << "Cannot lock math inset in edit call!\n";
 191         releaseMathCursor(bv);
 192         mathcursor = new MathCursor(this, front);
 193         metrics(bv);
 194         bv->updateInset(this, false);
 195 }
 196
 197
 198 void InsetFormulaBase::insetUnlock(BufferView * bv)
 199 {
 200         if (mathcursor) {
 201                 if (mathcursor->inMacroMode()) {
 202                         mathcursor->macroModeClose();
 203                         updateLocal(bv, true);
 204                 }
 205                 releaseMathCursor(bv);
 206         }
 207         generatePreview();
 208         bv->updateInset(this, false);
 209 }
 210
 211
 212 void InsetFormulaBase::getCursorPos(BufferView *, int & x, int & y) const
 213 {
 214         // calling metrics here destroys the cached xo,yo positions e.g. in
 215         // MathParboxinset. And it would be too expensive anyway...
 216         //metrics(bv);
 217         if (!mathcursor) {
 218                 lyxerr << "getCursorPos - should not happen";
 219                 x = y = 0;
 220                 return;
 221         }
 222         mathcursor->getPos(x, y);
 223         x = mathcursor->targetX();
 224         x -= xo_;
 225         y -= yo_;
 226         //lyxerr << "getCursorPos: " << x << ' ' << y << endl;
 227 }
 228
 229
 230 void InsetFormulaBase::toggleInsetCursor(BufferView * bv)
 231 {
 232         if (!mathcursor) {
 233                 lyxerr[Debug::MATHED] << "toggleInsetCursor impossible" << endl;
 234                 return;
 235         }
 236         //lyxerr << "toggleInsetCursor: " << isCursorVisible() << endl;
 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" << endl;
 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 << endl;
 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: " << endl;
 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_ << endl;
 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 dispatch_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() << endl;
 315
 316         if (cmd.button() == mouse_button::button3) {
 317                 // try to dispatch to enclosed insets first
 318                 if (mathcursor->dispatch(cmd) == UNDISPATCHED) {
 319                         // launch math panel for right mouse button
 320                         lyxerr << "lfunMouseRelease: undispatched: " << cmd.button() << endl;
 321                         bv->owner()->getDialogs().showMathPanel();
 322                 }
 323                 return DISPATCHED;
 324         }
 325
 326         if (cmd.button() == mouse_button::button2) {
 327                 mathcursor->selClear();
 328                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 329                 mathcursor->insert(asArray(bv->getClipboard()));
 330                 bv->updateInset(this, true);
 331                 return DISPATCHED;
 332         }
 333
 334         if (cmd.button() == mouse_button::button1) {
 335                 // try to dispatch to enclosed insets first
 336                 mathcursor->dispatch(cmd);
 337                 cmd.view()->stuffClipboard(mathcursor->grabSelection());
 338                 // try to set the cursor
 339                 //delete mathcursor;
 340                 //mathcursor = new MathCursor(this, x == 0);
 341                 //metrics(bv);
 342                 //mathcursor->setPos(x + xo_, y + yo_);
 343                 return DISPATCHED;
 344         }
 345
 346         return UNDISPATCHED;
 347 }
 348
 349
 350 dispatch_result InsetFormulaBase::lfunMousePress(FuncRequest const & cmd)
 351 {
 352         BufferView * bv = cmd.view();
 353         //lyxerr << "lfunMousePress: buttons: " << cmd.button() << endl;
 354
 355         if (!mathcursor || mathcursor->formula() != this) {
 356                 lyxerr[Debug::MATHED] << "re-create cursor" << endl;
 357                 releaseMathCursor(bv);
 358                 mathcursor = new MathCursor(this, cmd.x == 0);
 359                 metrics(bv);
 360                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 361         }
 362
 363         if (cmd.button() == mouse_button::button3) {
 364                 mathcursor->dispatch(cmd);
 365                 return DISPATCHED;
 366         }
 367
 368         if (cmd.button() == mouse_button::button1) {
 369                 first_x = cmd.x;
 370                 first_y = cmd.y;
 371                 mathcursor->selClear();
 372                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 373                 mathcursor->dispatch(cmd);
 374                 return DISPATCHED;
 375         }
 376
 377         bv->updateInset(this, false);
 378         return DISPATCHED;
 379 }
 380
 381
 382 dispatch_result InsetFormulaBase::lfunMouseMotion(FuncRequest const & cmd)
 383 {
 384         if (!mathcursor)
 385                 return DISPATCHED;
 386
 387         if (mathcursor->dispatch(FuncRequest(cmd)) != UNDISPATCHED)
 388                 return DISPATCHED;
 389
 390         // only select with button 1
 391         if (cmd.button() != mouse_button::button1)
 392                 return DISPATCHED;
 393
 394         if (abs(cmd.x - first_x) < 2 && abs(cmd.y - first_y) < 2)
 395                 return DISPATCHED;
 396
 397         first_x = cmd.x;
 398         first_y = cmd.y;
 399
 400         if (!mathcursor->selection())
 401                 mathcursor->selStart();
 402
 403         BufferView * bv = cmd.view();
 404         hideInsetCursor(bv);
 405         mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 406         showInsetCursor(bv);
 407         bv->updateInset(this, false);
 408         return DISPATCHED;
 409 }
 410
 411
 412 dispatch_result InsetFormulaBase::localDispatch(FuncRequest const & cmd)
 413 {
 414         //lyxerr << "InsetFormulaBase::localDispatch: act: " << cmd.action
 415         //      << " arg: '" << cmd.argument
 416         //      << " x: '" << cmd.x
 417         //      << " y: '" << cmd.y
 418         //      << "' button: " << cmd.button() << endl;
 419
 420         // delete empty mathbox (LFUN_BACKSPACE and LFUN_DELETE)
 421         bool remove_inset = false;
 422
 423         switch (cmd.action) {
 424                 case LFUN_MOUSE_PRESS:
 425                         //lyxerr << "Mouse single press\n";
 426                         return lfunMousePress(cmd);
 427                 case LFUN_MOUSE_MOTION:
 428                         //return lfunMouseMotion(cmd);
 429                 case LFUN_MOUSE_RELEASE:
 430                         lyxerr << "Mouse single release\n";
 431                         return lfunMouseRelease(cmd);
 432                 case LFUN_MOUSE_DOUBLE:
 433                         //lyxerr << "Mouse double\n";
 434                         return localDispatch(FuncRequest(LFUN_WORDSEL));
 435                 default:
 436                         break;
 437         }
 438
 439         if (!mathcursor)
 440                 return UNDISPATCHED;
 441
 442         BufferView * bv    = cmd.view();
 443         string argument    = cmd.argument;
 444         RESULT result      = DISPATCHED;
 445         bool sel           = false;
 446         bool was_macro     = mathcursor->inMacroMode();
 447         bool was_selection = mathcursor->selection();
 448
 449         hideInsetCursor(bv);
 450
 451         mathcursor->normalize();
 452         mathcursor->touch();
 453
 454         switch (cmd.action) {
 455
 456         case LFUN_MATH_MUTATE:
 457         case LFUN_MATH_DISPLAY:
 458         case LFUN_MATH_NUMBER:
 459         case LFUN_MATH_NONUMBER:
 460         case LFUN_TABINSERT:
 461         case LFUN_BREAKLINE:
 462         case LFUN_DELETE_LINE_FORWARD:
 463         case LFUN_INSERT_LABEL:
 464         case LFUN_MATH_EXTERN:
 465         case LFUN_TABULAR_FEATURE:
 466         case LFUN_PASTESELECTION:
 467         case LFUN_MATH_LIMITS:
 468                 bv->lockedInsetStoreUndo(Undo::EDIT);
 469                 mathcursor->dispatch(cmd);
 470                 updateLocal(bv, true);
 471                 break;
 472
 473         case LFUN_RIGHTSEL:
 474                 sel = true; // fall through...
 475         case LFUN_RIGHT:
 476                 result = mathcursor->right(sel) ? DISPATCHED : FINISHED_RIGHT;
 477                 //lyxerr << "calling scroll 20\n";
 478                 //scroll(bv, 20);
 479                 updateLocal(bv, false);
 480                 // write something to the minibuffer
 481                 //bv->owner()->message(mathcursor->info());
 482                 break;
 483
 484         case LFUN_LEFTSEL:
 485                 sel = true; // fall through
 486         case LFUN_LEFT:
 487                 result = mathcursor->left(sel) ? DISPATCHED : FINISHED;
 488                 updateLocal(bv, false);
 489                 break;
 490
 491         case LFUN_UPSEL:
 492                 sel = true; // fall through
 493         case LFUN_UP:
 494                 result = mathcursor->up(sel) ? DISPATCHED : FINISHED_UP;
 495                 updateLocal(bv, false);
 496                 break;
 497
 498         case LFUN_DOWNSEL:
 499                 sel = true; // fall through
 500         case LFUN_DOWN:
 501                 result = mathcursor->down(sel) ? DISPATCHED : FINISHED_DOWN;
 502                 updateLocal(bv, false);
 503                 break;
 504
 505         case LFUN_WORDSEL:
 506                 mathcursor->home(false);
 507                 mathcursor->end(true);
 508                 updateLocal(bv, false);
 509                 break;
 510
 511         case LFUN_UP_PARAGRAPHSEL:
 512         case LFUN_UP_PARAGRAPH:
 513         case LFUN_DOWN_PARAGRAPHSEL:
 514         case LFUN_DOWN_PARAGRAPH:
 515                 result = FINISHED;
 516                 updateLocal(bv, false);
 517                 break;
 518
 519         case LFUN_HOMESEL:
 520         case LFUN_WORDLEFTSEL:
 521                 sel = true; // fall through
 522         case LFUN_HOME:
 523         case LFUN_WORDLEFT:
 524                 result = mathcursor->home(sel) ? DISPATCHED : FINISHED;
 525                 updateLocal(bv, false);
 526                 break;
 527
 528         case LFUN_ENDSEL:
 529         case LFUN_WORDRIGHTSEL:
 530                 sel = true; // fall through
 531         case LFUN_END:
 532         case LFUN_WORDRIGHT:
 533                 result = mathcursor->end(sel) ? DISPATCHED : FINISHED_RIGHT;
 534                 updateLocal(bv, false);
 535                 break;
 536
 537         case LFUN_PRIORSEL:
 538         case LFUN_PRIOR:
 539         case LFUN_BEGINNINGBUFSEL:
 540         case LFUN_BEGINNINGBUF:
 541                 result = FINISHED;
 542                 updateLocal(bv, false);
 543                 break;
 544
 545         case LFUN_NEXTSEL:
 546         case LFUN_NEXT:
 547         case LFUN_ENDBUFSEL:
 548         case LFUN_ENDBUF:
 549                 result = FINISHED_RIGHT;
 550                 updateLocal(bv, false);
 551                 break;
 552
 553         case LFUN_TAB:
 554                 mathcursor->idxNext();
 555                 updateLocal(bv, false);
 556                 break;
 557
 558         case LFUN_SHIFT_TAB:
 559                 mathcursor->idxPrev();
 560                 updateLocal(bv, false);
 561                 break;
 562
 563         case LFUN_DELETE_WORD_BACKWARD:
 564         case LFUN_BACKSPACE:
 565                 bv->lockedInsetStoreUndo(Undo::EDIT);
 566                 if (mathcursor->backspace()) {
 567                         result = DISPATCHED;
 568                 } else {
 569                         result = FINISHED;
 570                         remove_inset = true;
 571                 }
 572                 updateLocal(bv, true);
 573                 break;
 574
 575         case LFUN_DELETE_WORD_FORWARD:
 576         case LFUN_DELETE:
 577                 bv->lockedInsetStoreUndo(Undo::EDIT);
 578                 if (mathcursor->erase()) {
 579                         result = DISPATCHED;
 580                 } else {
 581                         result = FINISHED;
 582                         remove_inset = true;
 583                 }
 584                 updateLocal(bv, true);
 585                 break;
 586
 587         //    case LFUN_GETXY:
 588         //      sprintf(dispatch_buffer, "%d %d",);
 589         //      dispatch_result = dispatch_buffer;
 590         //      break;
 591         case LFUN_SETXY: {
 592                 lyxerr << "LFUN_SETXY broken!\n";
 593                 int x = 0;
 594                 int y = 0;
 595                 istringstream is(cmd.argument.c_str());
 596                 is >> x >> y;
 597                 mathcursor->setPos(x, y);
 598                 updateLocal(bv, false);
 599                 break;
 600         }
 601
 602         case LFUN_PASTE:
 603                 if (was_macro)
 604                         mathcursor->macroModeClose();
 605                 bv->lockedInsetStoreUndo(Undo::EDIT);
 606                 mathcursor->selPaste();
 607                 updateLocal(bv, true);
 608                 break;
 609
 610         case LFUN_CUT:
 611                 bv->lockedInsetStoreUndo(Undo::DELETE);
 612                 mathcursor->selCut();
 613                 updateLocal(bv, true);
 614                 break;
 615
 616         case LFUN_COPY:
 617                 mathcursor->selCopy();
 618                 break;
 619
 620
 621         // Special casing for superscript in case of LyX handling
 622         // dead-keys:
 623         case LFUN_CIRCUMFLEX:
 624                 if (cmd.argument.empty()) {
 625                         // do superscript if LyX handles
 626                         // deadkeys
 627                         bv->lockedInsetStoreUndo(Undo::EDIT);
 628                         mathcursor->script(true);
 629                         updateLocal(bv, true);
 630                 }
 631                 break;
 632
 633         case LFUN_UMLAUT:
 634         case LFUN_ACUTE:
 635         case LFUN_GRAVE:
 636         case LFUN_BREVE:
 637         case LFUN_DOT:
 638         case LFUN_MACRON:
 639         case LFUN_CARON:
 640         case LFUN_TILDE:
 641         case LFUN_CEDILLA:
 642         case LFUN_CIRCLE:
 643         case LFUN_UNDERDOT:
 644         case LFUN_TIE:
 645         case LFUN_OGONEK:
 646         case LFUN_HUNG_UMLAUT:
 647                 break;
 648
 649         //  Math fonts
 650         case LFUN_GREEK_TOGGLE: handleFont(bv, cmd.argument, "lyxgreek"); break;
 651         case LFUN_BOLD:         handleFont(bv, cmd.argument, "mathbf"); break;
 652         case LFUN_SANS:         handleFont(bv, cmd.argument, "mathsf"); break;
 653         case LFUN_EMPH:         handleFont(bv, cmd.argument, "mathcal"); break;
 654         case LFUN_ROMAN:        handleFont(bv, cmd.argument, "mathrm"); break;
 655         case LFUN_CODE:         handleFont(bv, cmd.argument, "texttt"); break;
 656         case LFUN_FRAK:         handleFont(bv, cmd.argument, "mathfrak"); break;
 657         case LFUN_ITAL:         handleFont(bv, cmd.argument, "mathit"); break;
 658         case LFUN_NOUN:         handleFont(bv, cmd.argument, "mathbb"); break;
 659         case LFUN_FREE:         handleFont(bv, cmd.argument, "textrm"); break;
 660         case LFUN_DEFAULT:      handleFont(bv, cmd.argument, "textnormal"); break;
 661
 662         case LFUN_GREEK:
 663                 handleFont(bv, cmd.argument, "lyxgreek1");
 664                 if (cmd.argument.size())
 665                         mathcursor->insert(asArray(cmd.argument));
 666                 break;
 667
 668         case LFUN_MATH_MODE:
 669                 if (mathcursor->currentMode() == MathInset::TEXT_MODE) {
 670                         mathcursor->niceInsert(MathAtom(new MathHullInset("simple")));
 671                         updateLocal(bv, true);
 672                 } else {
 673                         handleFont(bv, cmd.argument, "textrm");
 674                 }
 675                 //bv->owner()->message(_("math text mode toggled"));
 676                 break;
 677
 678         case LFUN_MATH_SIZE:
 679 #if 0
 680                 if (!arg.empty()) {
 681                         bv->lockedInsetStoreUndo(Undo::EDIT);
 682                         mathcursor->setSize(arg);
 683                         updateLocal(bv, true);
 684                 }
 685 #endif
 686                 break;
 687
 688         case LFUN_INSERT_MATRIX: {
 689                 bv->lockedInsetStoreUndo(Undo::EDIT);
 690                 unsigned int m = 1;
 691                 unsigned int n = 1;
 692                 string v_align;
 693                 string h_align;
 694                 istringstream is(STRCONV(argument));
 695                 is >> m >> n >> v_align >> h_align;
 696                 m = max(1u, m);
 697                 n = max(1u, n);
 698                 v_align += 'c';
 699                 mathcursor->niceInsert(
 700                         MathAtom(new MathArrayInset("array", m, n, v_align[0], h_align)));
 701                         updateLocal(bv, true);
 702                 break;
 703         }
 704
 705         case LFUN_SUPERSCRIPT:
 706         case LFUN_SUBSCRIPT:
 707         {
 708                 bv->lockedInsetStoreUndo(Undo::EDIT);
 709                 mathcursor->script(cmd.action == LFUN_SUPERSCRIPT);
 710                 updateLocal(bv, true);
 711                 break;
 712         }
 713
 714         case LFUN_MATH_DELIM:
 715         {
 716                 //lyxerr << "formulabase::LFUN_MATH_DELIM, arg: '" << arg << "'\n";
 717                 string ls;
 718                 string rs = split(cmd.argument, ls, ' ');
 719                 // Reasonable default values
 720                 if (ls.empty())
 721                         ls = '(';
 722                 if (rs.empty())
 723                         rs = ')';
 724
 725                 bv->lockedInsetStoreUndo(Undo::EDIT);
 726                 mathcursor->handleNest(MathAtom(new MathDelimInset(ls, rs)));
 727                 updateLocal(bv, true);
 728                 break;
 729         }
 730
 731         case LFUN_PROTECTEDSPACE:
 732         case LFUN_MATH_SPACE:
 733                 bv->lockedInsetStoreUndo(Undo::EDIT);
 734                 mathcursor->insert(MathAtom(new MathSpaceInset(",")));
 735                 updateLocal(bv, true);
 736                 break;
 737
 738         case LFUN_UNDO:
 739                 bv->owner()->message(_("Invalid action in math mode!"));
 740                 break;
 741
 742
 743         case LFUN_EXEC_COMMAND:
 744                 result = UNDISPATCHED;
 745                 break;
 746
 747         case LFUN_INSET_ERT:
 748                 // interpret this as if a backslash was typed
 749                 bv->lockedInsetStoreUndo(Undo::EDIT);
 750                 mathcursor->interpret('\\');
 751                 updateLocal(bv, true);
 752                 break;
 753
 754         case LFUN_BREAKPARAGRAPH:
 755         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
 756         case LFUN_BREAKPARAGRAPH_SKIP:
 757                 argument = "\n";
 758                 // fall through
 759
 760 // FIXME: We probably should swap parts of "math-insert" and "self-insert"
 761 // handling such that "self-insert" works on "arbitrary stuff" too, and
 762 // math-insert only handles special math things like "matrix".
 763         case LFUN_INSERT_MATH:
 764                 bv->lockedInsetStoreUndo(Undo::EDIT);
 765                 mathcursor->niceInsert(argument);
 766                 updateLocal(bv, true);
 767                 break;
 768
 769         case -1:
 770         case LFUN_SELFINSERT:
 771                 if (!argument.empty()) {
 772                         bv->lockedInsetStoreUndo(Undo::EDIT);
 773                         if (argument.size() == 1)
 774                                 result = mathcursor->interpret(argument[0]) ? DISPATCHED : FINISHED_RIGHT;
 775                         else
 776                                 mathcursor->insert(asArray(argument));
 777                         updateLocal(bv, true);
 778                 }
 779                 break;
 780
 781         case LFUN_MATH_PANEL:
 782                 result = UNDISPATCHED;
 783                 break;
 784
 785         case LFUN_ESCAPE:
 786                 if (mathcursor->selection())
 787                         mathcursor->selClear();
 788                 else
 789                         result = UNDISPATCHED;
 790                 break;
 791
 792         case LFUN_INSET_TOGGLE:
 793                 mathcursor->insetToggle();
 794                 updateLocal(bv, true);
 795                 break;
 796
 797         case LFUN_DIALOG_SHOW_NEW_INSET: {
 798                 string const & name = argument;
 799                 if (name == "ref") {
 800                         string data = "LatexCommand \\ref{}\n\\end_inset\n\n";
 801                         bv->owner()->getDialogs().show(name, data, 0);
 802                 } else
 803                         result = UNDISPATCHED;
 804         }
 805         break;
 806
 807         case LFUN_REF_APPLY: {
 808                 // argument comes with a head "LatexCommand " and a
 809                 // tail "\nend_inset\n\n". Strip them off.
 810                 string trimmed;
 811                 string body = split(argument, trimmed, ' ');
 812                 split(body, trimmed, '\n');
 813                 lyxerr << "passing '" << trimmed << "' to the math parser\n";
 814
 815                 MathArray ar;
 816                 mathed_parse_cell(ar, trimmed);
 817                 if (ar.size() != 1) {
 818                         result = UNDISPATCHED;
 819                         break;
 820                 }
 821
 822                 RefInset * tmp = ar[0].nucleus()->asRefInset();
 823                 if (!tmp) {
 824                         result = UNDISPATCHED;
 825                         break;
 826                 }
 827
 828                 InsetBase * base =
 829                         bv->owner()->getDialogs().getOpenInset("ref");
 830                 if (base) {
 831                         RefInset * inset = dynamic_cast<RefInset *>(base);
 832                         if (!inset) {
 833                                 result = UNDISPATCHED;
 834                                 break;
 835                         }
 836
 837                         *inset = *tmp;
 838                 } else {
 839                         mathcursor->insert(ar);
 840                 }
 841                 updateLocal(bv, true);
 842         }
 843         break;
 844
 845         default:
 846                 result = UNDISPATCHED;
 847         }
 848
 849         mathcursor->normalize();
 850         mathcursor->touch();
 851
 852         lyx::Assert(mathcursor);
 853
 854         if (mathcursor->selection() || was_selection)
 855                 toggleInsetSelection(bv);
 856
 857         if (result == DISPATCHED || result == DISPATCHED_NOUPDATE ||
 858             result == UNDISPATCHED) {
 859                 fitInsetCursor(bv);
 860                 showInsetCursor(bv);
 861                 revealCodes(bv);
 862                 cmd.view()->stuffClipboard(mathcursor->grabSelection());
 863         } else {
 864                 releaseMathCursor(bv);
 865                 bv->unlockInset(this);
 866                 if (remove_inset)
 867                         bv->owner()->dispatch(FuncRequest(LFUN_DELETE));
 868         }
 869
 870         return result;  // original version
 871 }
 872
 873
 874 void InsetFormulaBase::revealCodes(BufferView * bv) const
 875 {
 876         if (!mathcursor)
 877                 return;
 878         bv->owner()->message(mathcursor->info());
 879
 880 #if 0
 881         // write something to the minibuffer
 882         // translate to latex
 883         mathcursor->markInsert();
 884         ostringstream os;
 885         write(NULL, os);
 886         string str = os.str();
 887         mathcursor->markErase();
 888         string::size_type pos = 0;
 889         string res;
 890         for (string::iterator it = str.begin(); it != str.end(); ++it) {
 891                 if (*it == '\n')
 892                         res += ' ';
 893                 else if (*it == '\0') {
 894                         res += "  -X-  ";
 895                         pos = it - str.begin();
 896                 }
 897                 else
 898                         res += *it;
 899         }
 900         if (pos > 30)
 901                 res = res.substr(pos - 30);
 902         if (res.size() > 60)
 903                 res = res.substr(0, 60);
 904         bv->owner()->message(res);
 905 #endif
 906 }
 907
 908
 909 Inset::Code InsetFormulaBase::lyxCode() const
 910 {
 911         return Inset::MATH_CODE;
 912 }
 913
 914
 915 int InsetFormulaBase::ylow() const
 916 {
 917         return yo_ - ascent(view(), font_);
 918 }
 919
 920
 921 int InsetFormulaBase::yhigh() const
 922 {
 923         return yo_ + descent(view(), font_);
 924 }
 925
 926
 927 int InsetFormulaBase::xlow() const
 928 {
 929         return xo_;
 930 }
 931
 932
 933 int InsetFormulaBase::xhigh() const
 934 {
 935         return xo_ + width(view(), font_);
 936 }
 937
 938
 939 /////////////////////////////////////////////////////////////////////
 940
 941
 942 bool InsetFormulaBase::searchForward(BufferView * bv, string const & str,
 943                                      bool, bool)
 944 {
 945 #ifdef WITH_WARNINGS
 946 #warning pretty ugly
 947 #endif
 948         static InsetFormulaBase * lastformula = 0;
 949         static MathIterator current = MathIterator(ibegin(par().nucleus()));
 950         static MathArray ar;
 951         static string laststr;
 952
 953         if (lastformula != this || laststr != str) {
 954                 //lyxerr << "reset lastformula to " << this << "\n";
 955                 lastformula = this;
 956                 laststr = str;
 957                 current = ibegin(par().nucleus());
 958                 ar.clear();
 959                 mathed_parse_cell(ar, str);
 960         } else {
 961                 ++current;
 962         }
 963         //lyxerr << "searching '" << str << "' in " << this << ar << endl;
 964
 965         for (MathIterator it = current; it != iend(par().nucleus()); ++it) {
 966                 if (it.cell().matchpart(ar, it.back().pos_)) {
 967                         bv->unlockInset(bv->theLockingInset());
 968                         if (!bv->lockInset(this)) {
 969                                 lyxerr << "Cannot lock inset" << endl;
 970                                 return false;
 971                         }
 972                         delete mathcursor;
 973                         mathcursor = new MathCursor(this, true);
 974                         metrics(bv);
 975                         mathcursor->setSelection(it, ar.size());
 976                         current = it;
 977                         it.jump(ar.size());
 978                         updateLocal(bv, false);
 979                         return true;
 980                 }
 981         }
 982
 983         //lyxerr << "not found!\n";
 984         lastformula = 0;
 985         return false;
 986 }
 987
 988
 989 bool InsetFormulaBase::searchBackward(BufferView * bv, string const & what,
 990                                       bool a, bool b)
 991 {
 992         lyxerr[Debug::MATHED] << "searching backward not implemented in mathed\n";
 993         return searchForward(bv, what, a, b);
 994 }
 995
 996
 997 bool InsetFormulaBase::display() const
 998 {
 999         return par()->asHullInset() && par()->asHullInset()->display();
1000 }
1001
1002
1003 string InsetFormulaBase::selectionAsString() const
1004 {
1005         return mathcursor ? mathcursor->grabSelection() : string();
1006 }
1007
1008 /////////////////////////////////////////////////////////////////////
1009
1010
1011 void mathDispatchCreation(FuncRequest const & cmd, bool display)
1012 {
1013         BufferView * bv = cmd.view();
1014         // use selection if available..
1015         //string sel;
1016         //if (action == LFUN_MATH_IMPORT_SELECTION)
1017         //      sel = "";
1018         //else
1019
1020         string sel = bv->getLyXText()->selectionAsString(bv->buffer(), false);
1021
1022         if (sel.empty()) {
1023                 InsetFormula * f = new InsetFormula(bv);
1024                 if (openNewInset(bv, f)) {
1025                         bv->theLockingInset()->
1026                                 localDispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
1027                         // don't do that also for LFUN_MATH_MODE unless you want end up with
1028                         // always changing to mathrm when opening an inlined inset
1029                         // -- I really hate "LyXfunc overloading"...
1030                         if (display)
1031                                 f->localDispatch(FuncRequest(bv, LFUN_MATH_DISPLAY));
1032                         f->localDispatch(FuncRequest(bv, LFUN_INSERT_MATH, cmd.argument));
1033                 }
1034         } else {
1035                 // create a macro if we see "\\newcommand" somewhere, and an ordinary
1036                 // formula otherwise
1037                 InsetFormulaBase * f;
1038                 if (sel.find("\\newcommand") == string::npos &&
1039                                 sel.find("\\def") == string::npos)
1040                         f = new InsetFormula(sel);
1041                 else
1042                         f = new InsetFormulaMacro(sel);
1043                 bv->getLyXText()->cutSelection(bv);
1044                 openNewInset(bv, f);
1045         }
1046         cmd.message(N_("Math editor mode"));
1047 }
1048
1049
1050 void mathDispatch(FuncRequest const & cmd)
1051 {
1052         BufferView * bv = cmd.view();
1053         if (!bv->available())
1054                 return;
1055
1056         switch (cmd.action) {
1057
1058                 case LFUN_MATH_DISPLAY:
1059                         mathDispatchCreation(cmd, true);
1060                         break;
1061
1062                 case LFUN_MATH_MODE:
1063                         mathDispatchCreation(cmd, false);
1064                         break;
1065
1066                 case LFUN_MATH_IMPORT_SELECTION:
1067                         mathDispatchCreation(cmd, false);
1068                         break;
1069
1070                 case LFUN_MATH_MACRO:
1071                         if (cmd.argument.empty())
1072                                 cmd.errorMessage(N_("Missing argument"));
1073                         else {
1074                                 string s = cmd.argument;
1075                                 string const s1 = token(s, ' ', 1);
1076                                 int const na = s1.empty() ? 0 : lyx::atoi(s1);
1077                                 openNewInset(bv, new InsetFormulaMacro(token(s, ' ', 0), na));
1078                         }
1079                         break;
1080
1081                 case LFUN_GREEK:
1082                 case LFUN_INSERT_MATH:
1083                 case LFUN_INSERT_MATRIX:
1084                 case LFUN_MATH_DELIM: {
1085                         InsetFormula * f = new InsetFormula(bv);
1086                         if (openNewInset(bv, f)) {
1087                                 bv->theLockingInset()->
1088                                         localDispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
1089                                 bv->theLockingInset()->localDispatch(cmd);
1090                         }
1091                         break;
1092                 }
1093                 default:
1094                         break;
1095         }
1096 }