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