src/mathed/formulabase.C

   1 /*
   2 *  File:        formulabase.C
   3 *  Purpose:     Implementation of common parts of the LyX  math insets
   4 *  Author:      Alejandro Aguilar Sierra <asierra@servidor.unam.mx>
   5 *  Created:     January 1996
   6 *
   7 *  Copyright: 1996-1998 Alejandro Aguilar Sierra
   8 *
   9 *  Version: 0.4, Lyx project.
  10 *
  11 *   You are free to use and modify this code under the terms of
  12 *   the GNU General Public Licence version 2 or later.
  13 */
  14
  15 #include <config.h>
  16 #include <fstream>
  17
  18 #include "Lsstream.h"
  19 #include "support/LAssert.h"
  20
  21 #ifdef __GNUG__
  22 #pragma implementation
  23 #endif
  24
  25 #include "formula.h"
  26 #include "formulamacro.h"
  27 #include "lyxrc.h"
  28 #include "funcrequest.h"
  29 #include "BufferView.h"
  30 #include "lyxtext.h"
  31 #include "gettext.h"
  32 #include "LaTeXFeatures.h"
  33 #include "debug.h"
  34 #include "math_support.h"
  35 #include "math_metricsinfo.h"
  36 #include "support/lstrings.h"
  37 #include "frontends/LyXView.h"
  38 #include "frontends/font_metrics.h"
  39 #include "frontends/mouse_state.h"
  40 #include "Lsstream.h"
  41 #include "math_arrayinset.h"
  42 #include "math_charinset.h"
  43 #include "math_deliminset.h"
  44 #include "math_cursor.h"
  45 #include "math_factory.h"
  46 #include "math_fontinset.h"
  47 #include "math_hullinset.h"
  48 #include "math_iterator.h"
  49 #include "math_macrotable.h"
  50 #include "math_parser.h"
  51 #include "math_pos.h"
  52 #include "math_spaceinset.h"
  53 #include "undo_funcs.h"
  54 #include "textpainter.h"
  55 #include "frontends/Dialogs.h"
  56 #include "intl.h"
  57 #include "insets/insetcommandparams.h"
  58 #include "ref_inset.h"
  59
  60 using std::endl;
  61 using std::ostream;
  62 using std::vector;
  63 using std::abs;
  64
  65 MathCursor * mathcursor = 0;
  66
  67
  68 namespace {
  69
  70 // local global
  71 int first_x;
  72 int first_y;
  73
  74
  75
  76 bool openNewInset(BufferView * bv, UpdatableInset * new_inset)
  77 {
  78         if (!bv->insertInset(new_inset)) {
  79                 delete new_inset;
  80                 return false;
  81         }
  82         new_inset->edit(bv, true);
  83         return true;
  84 }
  85
  86
  87 } // namespace anon
  88
  89
  90
  91 InsetFormulaBase::InsetFormulaBase()
  92         : font_(), xo_(0), yo_(0)
  93 {
  94         // This is needed as long the math parser is not re-entrant
  95         initMath();
  96         //lyxerr << "sizeof MathInset: " << sizeof(MathInset) << "\n";
  97         //lyxerr << "sizeof MathMetricsInfo: " << sizeof(MathMetricsInfo) << "\n";
  98         //lyxerr << "sizeof MathCharInset: " << sizeof(MathCharInset) << "\n";
  99         //lyxerr << "sizeof LyXFont: " << sizeof(LyXFont) << "\n";
 100 }
 101
 102
 103 // simply scrap this function if you want
 104 void InsetFormulaBase::mutateToText()
 105 {
 106 #if 0
 107         // translate to latex
 108         ostringstream os;
 109         latex(NULL, os, false, false);
 110         string str = os.str();
 111
 112         // insert this text
 113         LyXText * lt = view_->getLyXText();
 114         string::const_iterator cit = str.begin();
 115         string::const_iterator end = str.end();
 116         for (; cit != end; ++cit)
 117                 view_->owner()->getIntl()->getTransManager().TranslateAndInsert(*cit, lt);
 118
 119         // remove ourselves
 120         //view_->owner()->dispatch(LFUN_ESCAPE);
 121 #endif
 122 }
 123
 124
 125 void InsetFormulaBase::handleFont
 126         (BufferView * bv, string const & arg, string const & font)
 127 {
 128         bv->lockedInsetStoreUndo(Undo::EDIT);
 129         bool sel = mathcursor->selection();
 130         if (sel)
 131                 updateLocal(bv, true);
 132         mathcursor->handleNest(createMathInset(font));
 133         mathcursor->insert(arg);
 134         if (!sel)
 135                 updateLocal(bv, false);
 136 }
 137
 138
 139 // Check if uses AMS macros
 140 void InsetFormulaBase::validate(LaTeXFeatures &) const
 141 {}
 142
 143
 144 void InsetFormulaBase::metrics(BufferView * bv, LyXFont const & f) const
 145 {
 146         font_ = f;
 147         metrics(bv);
 148 }
 149
 150
 151 void InsetFormulaBase::metrics(BufferView * bv) const
 152 {
 153         if (bv)
 154                 view_ = bv->owner()->view();
 155         MathMetricsInfo mi;
 156         mi.base.style = LM_ST_TEXT;
 157         mi.base.font  = font_;
 158         mi.base.font.setColor(LColor::math);
 159         par()->metrics(mi);
 160 }
 161
 162
 163 string const InsetFormulaBase::editMessage() const
 164 {
 165         return _("Math editor mode");
 166 }
 167
 168
 169 void InsetFormulaBase::edit(BufferView * bv, int x, int y, mouse_button::state)
 170 {
 171         if (!bv->lockInset(this))
 172                 lyxerr[Debug::MATHED] << "Cannot lock inset!!!" << endl;
 173         releaseMathCursor(bv);
 174         mathcursor = new MathCursor(this, true);
 175         metrics(bv);
 176         mathcursor->setPos(x + xo_, y + yo_);
 177         // if that is removed, we won't get the magenta box when entering an
 178         // inset for the first time
 179         bv->updateInset(this, false);
 180 }
 181
 182
 183 void InsetFormulaBase::edit(BufferView * bv, bool front)
 184 {
 185         if (!bv->lockInset(this))
 186                 lyxerr << "Cannot lock math inset in edit call!\n";
 187         releaseMathCursor(bv);
 188         mathcursor = new MathCursor(this, front);
 189         metrics(bv);
 190         bv->updateInset(this, false);
 191 }
 192
 193
 194 void InsetFormulaBase::insetUnlock(BufferView * bv)
 195 {
 196         if (mathcursor) {
 197                 if (mathcursor->inMacroMode()) {
 198                         mathcursor->macroModeClose();
 199                         updateLocal(bv, true);
 200                 }
 201                 releaseMathCursor(bv);
 202         }
 203         generatePreview();
 204         bv->updateInset(this, false);
 205 }
 206
 207
 208 void InsetFormulaBase::getCursorPos(BufferView *, int & x, int & y) const
 209 {
 210         // calling metrics here destroys the cached xo,yo positions e.g. in
 211         // MathParboxinset. And it would be too expensive anyway...
 212         //metrics(bv);
 213         if (!mathcursor) {
 214                 lyxerr << "getCursorPos - should not happen";
 215                 x = y = 0;
 216                 return;
 217         }
 218         mathcursor->getPos(x, y);
 219         x = mathcursor->targetX();
 220         x -= xo_;
 221         y -= yo_;
 222         //lyxerr << "getCursorPos: " << x << " " << y << "\n";
 223 }
 224
 225
 226 void InsetFormulaBase::toggleInsetCursor(BufferView * bv)
 227 {
 228         //lyxerr << "toggleInsetCursor: " << isCursorVisible() << "\n";
 229         if (isCursorVisible())
 230                 hideInsetCursor(bv);
 231         else
 232                 showInsetCursor(bv);
 233 }
 234
 235
 236 void InsetFormulaBase::showInsetCursor(BufferView * bv, bool)
 237 {
 238         if (isCursorVisible())
 239                 return;
 240         fitInsetCursor(bv);
 241         int x, y, asc, des;
 242         mathcursor->getPos(x, y);
 243         math_font_max_dim(font_, asc, des);
 244         bv->showLockedInsetCursor(x, y - yo_, asc, des);
 245         setCursorVisible(true);
 246         //lyxerr << "showInsetCursor: " << x << " " << y << "\n";
 247 }
 248
 249
 250 void InsetFormulaBase::hideInsetCursor(BufferView * bv)
 251 {
 252         if (!isCursorVisible())
 253                 return;
 254         bv->hideLockedInsetCursor();
 255         setCursorVisible(false);
 256         //lyxerr << "hideInsetCursor: \n";
 257 }
 258
 259
 260 void InsetFormulaBase::fitInsetCursor(BufferView * bv) const
 261 {
 262         if (!mathcursor)
 263                 return;
 264         int x, y, asc, des;
 265         math_font_max_dim(font_, asc, des);
 266         getCursorPos(bv, x, y);
 267         //y += yo_;
 268         //lyxerr << "fitInsetCursor: x: " << x << " y: " << y << " yo: " << yo_ << "\n";
 269         bv->fitLockedInsetCursor(x, y, asc, des);
 270 }
 271
 272
 273 void InsetFormulaBase::toggleInsetSelection(BufferView * bv)
 274 {
 275         if (mathcursor)
 276                 bv->updateInset(this, false);
 277 }
 278
 279
 280 vector<string> const InsetFormulaBase::getLabelList() const
 281 {
 282   return vector<string>();
 283 }
 284
 285
 286 void InsetFormulaBase::updateLocal(BufferView * bv, bool dirty)
 287 {
 288         bv->updateInset(this, dirty);
 289 }
 290
 291
 292 Inset::RESULT InsetFormulaBase::lfunMouseRelease(FuncRequest const & cmd)
 293 {
 294         if (!mathcursor)
 295                 return UNDISPATCHED;
 296
 297         BufferView * bv = cmd.view();
 298         hideInsetCursor(bv);
 299         showInsetCursor(bv);
 300         bv->updateInset(this, false);
 301
 302         if (cmd.button() == mouse_button::button3) {
 303                 // try to dispatch to enclosed insets first
 304                 if (mathcursor->dispatch(cmd) == MathInset::UNDISPATCHED) {
 305                         // launch math panel for right mouse button
 306                         bv->owner()->getDialogs().showMathPanel();
 307                 }
 308                 return DISPATCHED;
 309         }
 310
 311         if (cmd.button() == mouse_button::button1) {
 312                 // try to dispatch to enclosed insets first
 313                 mathcursor->dispatch(cmd);
 314                 // try to set the cursor
 315                 //delete mathcursor;
 316                 //mathcursor = new MathCursor(this, x == 0);
 317                 //metrics(bv);
 318                 //mathcursor->setPos(x + xo_, y + yo_);
 319                 return DISPATCHED;
 320         }
 321         return UNDISPATCHED;
 322 }
 323
 324
 325 Inset::RESULT InsetFormulaBase::lfunMousePress(FuncRequest const & cmd)
 326 {
 327         BufferView * bv = cmd.view();
 328         releaseMathCursor(bv);
 329         mathcursor = new MathCursor(this, cmd.x == 0);
 330
 331         if (cmd.button() == mouse_button::button1) {
 332                 // just set the cursor here
 333                 //lyxerr << "setting cursor\n";
 334                 metrics(bv);
 335                 first_x = cmd.x;
 336                 first_y = cmd.y;
 337                 mathcursor->selClear();
 338                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 339                 mathcursor->dispatch(cmd);
 340                 return DISPATCHED;
 341         }
 342         if (cmd.button() == mouse_button::button3) {
 343                 mathcursor->dispatch(cmd);
 344                 //delete mathcursor;
 345                 return DISPATCHED;
 346         }
 347         bv->updateInset(this, false);
 348         return DISPATCHED;
 349 }
 350
 351
 352 Inset::RESULT InsetFormulaBase::lfunMouseMotion(FuncRequest const & cmd)
 353 {
 354         if (!mathcursor)
 355                 return DISPATCHED;
 356
 357         if (mathcursor->dispatch(FuncRequest(cmd)) != MathInset::UNDISPATCHED)
 358                 return DISPATCHED;
 359
 360         if (abs(cmd.x - first_x) < 2 && abs(cmd.y - first_y) < 2) {
 361                 //lyxerr << "insetMotionNotify: ignored\n";
 362                 return DISPATCHED;
 363         }
 364         first_x = cmd.x;
 365         first_y = cmd.y;
 366
 367         if (!mathcursor->selection())
 368                 mathcursor->selStart();
 369
 370         BufferView * bv = cmd.view();
 371         hideInsetCursor(bv);
 372         mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 373         showInsetCursor(bv);
 374         bv->updateInset(this, false);
 375         return DISPATCHED;
 376 }
 377
 378
 379 Inset::RESULT InsetFormulaBase::localDispatch(FuncRequest const & cmd)
 380 {
 381         //lyxerr << "InsetFormulaBase::localDispatch: act: " << cmd.action
 382         //      << " arg: '" << cmd.argument
 383         //      << " x: '" << cmd.x
 384         //      << " y: '" << cmd.y
 385         //      << "' button: " << cmd.button() << "\n";
 386
 387         switch (cmd.action) {
 388                 case LFUN_MOUSE_PRESS:
 389                         return lfunMousePress(cmd);
 390                 case LFUN_MOUSE_MOTION:
 391                         return lfunMouseMotion(cmd);
 392                 case LFUN_MOUSE_RELEASE:
 393                         return lfunMouseRelease(cmd);
 394                 default:
 395                         break;
 396         }
 397
 398         if (!mathcursor)
 399                 return UNDISPATCHED;
 400
 401         BufferView * bv    = cmd.view();
 402         string argument    = cmd.argument;
 403         RESULT result      = DISPATCHED;
 404         bool sel           = false;
 405         bool was_macro     = mathcursor->inMacroMode();
 406         bool was_selection = mathcursor->selection();
 407
 408         hideInsetCursor(bv);
 409
 410         mathcursor->normalize();
 411         mathcursor->touch();
 412
 413         switch (cmd.action) {
 414
 415         case LFUN_MATH_MUTATE:
 416         case LFUN_MATH_DISPLAY:
 417         case LFUN_MATH_NUMBER:
 418         case LFUN_MATH_NONUMBER:
 419         case LFUN_TABINSERT:
 420         case LFUN_BREAKLINE:
 421         case LFUN_DELETE_LINE_FORWARD:
 422         case LFUN_INSERT_LABEL:
 423         case LFUN_MATH_EXTERN:
 424         case LFUN_TABULAR_FEATURE:
 425         case LFUN_PASTESELECTION:
 426                 bv->lockedInsetStoreUndo(Undo::EDIT);
 427                 mathcursor->dispatch(cmd);
 428                 updateLocal(bv, true);
 429                 break;
 430
 431         case LFUN_WORDRIGHTSEL:
 432         case LFUN_RIGHTSEL:
 433                 sel = true; // fall through...
 434         case LFUN_RIGHT:
 435                 result = mathcursor->right(sel) ? DISPATCHED : FINISHED_RIGHT;
 436                 //lyxerr << "calling scroll 20\n";
 437                 //scroll(bv, 20);
 438                 updateLocal(bv, false);
 439                 // write something to the minibuffer
 440                 //bv->owner()->message(mathcursor->info());
 441                 break;
 442
 443         case LFUN_WORDLEFTSEL:
 444         case LFUN_LEFTSEL:
 445                 sel = true; // fall through
 446         case LFUN_LEFT:
 447                 result = mathcursor->left(sel) ? DISPATCHED : FINISHED;
 448                 updateLocal(bv, false);
 449                 break;
 450
 451         case LFUN_UPSEL:
 452                 sel = true; // fall through
 453         case LFUN_UP:
 454                 result = mathcursor->up(sel) ? DISPATCHED : FINISHED_UP;
 455                 updateLocal(bv, false);
 456                 break;
 457
 458         case LFUN_DOWNSEL:
 459                 sel = true; // fall through
 460         case LFUN_DOWN:
 461                 result = mathcursor->down(sel) ? DISPATCHED : FINISHED_DOWN;
 462                 updateLocal(bv, false);
 463                 break;
 464
 465         case LFUN_HOMESEL:
 466                 sel = true; // fall through
 467         case LFUN_HOME:
 468                 result = mathcursor->home(sel) ? DISPATCHED : FINISHED;
 469                 updateLocal(bv, false);
 470                 break;
 471
 472         case LFUN_ENDSEL:
 473                 sel = true; // fall through
 474         case LFUN_END:
 475                 result = mathcursor->end(sel) ? DISPATCHED : FINISHED_RIGHT;
 476                 updateLocal(bv, false);
 477                 break;
 478
 479         case LFUN_PRIORSEL:
 480         case LFUN_PRIOR:
 481                 result = FINISHED_UP;
 482                 updateLocal(bv, false);
 483                 break;
 484
 485         case LFUN_NEXTSEL:
 486         case LFUN_NEXT:
 487                 result = FINISHED_DOWN;
 488                 updateLocal(bv, false);
 489                 break;
 490
 491         case LFUN_TAB:
 492                 mathcursor->idxNext();
 493                 updateLocal(bv, false);
 494                 break;
 495
 496         case LFUN_SHIFT_TAB:
 497                 mathcursor->idxPrev();
 498                 updateLocal(bv, false);
 499                 break;
 500
 501         case LFUN_DELETE_WORD_BACKWARD:
 502         case LFUN_BACKSPACE:
 503                 bv->lockedInsetStoreUndo(Undo::DELETE);
 504                 mathcursor->backspace();
 505                 updateLocal(bv, true);
 506                 break;
 507
 508         case LFUN_DELETE_WORD_FORWARD:
 509         case LFUN_DELETE:
 510                 bv->lockedInsetStoreUndo(Undo::DELETE);
 511                 mathcursor->erase();
 512                 bv->updateInset(this, true);
 513                 break;
 514
 515         //    case LFUN_GETXY:
 516         //      sprintf(dispatch_buffer, "%d %d",);
 517         //      dispatch_result = dispatch_buffer;
 518         //      break;
 519         case LFUN_SETXY: {
 520                 lyxerr << "LFUN_SETXY broken!\n";
 521                 int x = 0;
 522                 int y = 0;
 523                 istringstream is(cmd.argument.c_str());
 524                 is >> x >> y;
 525                 mathcursor->setPos(x, y);
 526                 updateLocal(bv, false);
 527                 break;
 528         }
 529
 530         case LFUN_PASTE:
 531                 if (was_macro)
 532                         mathcursor->macroModeClose();
 533                 bv->lockedInsetStoreUndo(Undo::EDIT);
 534                 mathcursor->selPaste();
 535                 updateLocal(bv, true);
 536                 break;
 537
 538         case LFUN_CUT:
 539                 bv->lockedInsetStoreUndo(Undo::DELETE);
 540                 mathcursor->selCut();
 541                 updateLocal(bv, true);
 542                 break;
 543
 544         case LFUN_COPY:
 545                 mathcursor->selCopy();
 546                 break;
 547
 548
 549         // Special casing for superscript in case of LyX handling
 550         // dead-keys:
 551         case LFUN_CIRCUMFLEX:
 552                 if (cmd.argument.empty()) {
 553                         // do superscript if LyX handles
 554                         // deadkeys
 555                         bv->lockedInsetStoreUndo(Undo::EDIT);
 556                         mathcursor->script(true);
 557                         updateLocal(bv, true);
 558                 }
 559                 break;
 560
 561         case LFUN_UMLAUT:
 562         case LFUN_ACUTE:
 563         case LFUN_GRAVE:
 564         case LFUN_BREVE:
 565         case LFUN_DOT:
 566         case LFUN_MACRON:
 567         case LFUN_CARON:
 568         case LFUN_TILDE:
 569         case LFUN_CEDILLA:
 570         case LFUN_CIRCLE:
 571         case LFUN_UNDERDOT:
 572         case LFUN_TIE:
 573         case LFUN_OGONEK:
 574         case LFUN_HUNG_UMLAUT:
 575                 break;
 576
 577         //  Math fonts
 578         case LFUN_GREEK_TOGGLE: handleFont(bv, cmd.argument, "lyxgreek"); break;
 579         case LFUN_BOLD:         handleFont(bv, cmd.argument, "textbf"); break;
 580         case LFUN_SANS:         handleFont(bv, cmd.argument, "textsf"); break;
 581         case LFUN_EMPH:         handleFont(bv, cmd.argument, "mathcal"); break;
 582         case LFUN_ROMAN:        handleFont(bv, cmd.argument, "mathrm"); break;
 583         case LFUN_CODE:         handleFont(bv, cmd.argument, "texttt"); break;
 584         case LFUN_FRAK:         handleFont(bv, cmd.argument, "mathfrak"); break;
 585         case LFUN_ITAL:         handleFont(bv, cmd.argument, "mathit"); break;
 586         case LFUN_NOUN:         handleFont(bv, cmd.argument, "mathbb"); break;
 587         case LFUN_DEFAULT:      handleFont(bv, cmd.argument, "textnormal"); break;
 588         case LFUN_FREE:         handleFont(bv, cmd.argument, "textrm"); break;
 589
 590         case LFUN_GREEK:
 591                 handleFont(bv, cmd.argument, "lyxgreek1");
 592                 if (cmd.argument.size())
 593                         mathcursor->interpret(cmd.argument);
 594                 break;
 595
 596         case LFUN_MATH_MODE:
 597                 if (mathcursor->currentMode())
 598                         handleFont(bv, cmd.argument, "textrm");
 599                 else {
 600                         mathcursor->niceInsert(MathAtom(new MathHullInset("simple")));
 601                         updateLocal(bv, true);
 602                 }
 603                 //bv->owner()->message(_("math text mode toggled"));
 604                 break;
 605
 606         case LFUN_MATH_LIMITS:
 607                 bv->lockedInsetStoreUndo(Undo::EDIT);
 608                 if (mathcursor->toggleLimits())
 609                         updateLocal(bv, true);
 610                 break;
 611
 612         case LFUN_MATH_SIZE:
 613 #if 0
 614                 if (!arg.empty()) {
 615                         bv->lockedInsetStoreUndo(Undo::EDIT);
 616                         mathcursor->setSize(arg);
 617                         updateLocal(bv, true);
 618                 }
 619 #endif
 620                 break;
 621
 622         case LFUN_INSERT_MATRIX:
 623                 if (!cmd.argument.empty()) {
 624                         bv->lockedInsetStoreUndo(Undo::EDIT);
 625                         mathcursor->interpret("matrix " + cmd.argument);
 626                         updateLocal(bv, true);
 627                 }
 628                 break;
 629
 630         case LFUN_SUPERSCRIPT:
 631         case LFUN_SUBSCRIPT:
 632         {
 633                 bv->lockedInsetStoreUndo(Undo::EDIT);
 634                 mathcursor->script(cmd.action == LFUN_SUPERSCRIPT);
 635                 updateLocal(bv, true);
 636                 break;
 637         }
 638
 639         case LFUN_MATH_DELIM:
 640         {
 641                 //lyxerr << "formulabase::LFUN_MATH_DELIM, arg: '" << arg << "'\n";
 642                 string ls;
 643                 string rs = split(cmd.argument, ls, ' ');
 644                 // Reasonable default values
 645                 if (ls.empty())
 646                         ls = '(';
 647                 if (rs.empty())
 648                         rs = ')';
 649
 650                 bv->lockedInsetStoreUndo(Undo::EDIT);
 651                 mathcursor->handleNest(MathAtom(new MathDelimInset(ls, rs)));
 652                 updateLocal(bv, true);
 653                 break;
 654         }
 655
 656         case LFUN_PROTECTEDSPACE:
 657         case LFUN_MATH_SPACE:
 658                 bv->lockedInsetStoreUndo(Undo::EDIT);
 659                 mathcursor->insert(MathAtom(new MathSpaceInset(",")));
 660                 updateLocal(bv, true);
 661                 break;
 662
 663         case LFUN_UNDO:
 664                 bv->owner()->message(_("Invalid action in math mode!"));
 665                 break;
 666
 667
 668         case LFUN_EXEC_COMMAND:
 669                 result = UNDISPATCHED;
 670                 break;
 671
 672         case LFUN_INSET_ERT:
 673                 // interpret this as if a backslash was typed
 674                 bv->lockedInsetStoreUndo(Undo::EDIT);
 675                 mathcursor->interpret('\\');
 676                 updateLocal(bv, true);
 677                 break;
 678
 679         case LFUN_BREAKPARAGRAPH:
 680         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
 681         case LFUN_BREAKPARAGRAPH_SKIP:
 682                 argument = "\n";
 683                 // fall through
 684
 685         case -1:
 686         case LFUN_INSERT_MATH:
 687         case LFUN_SELFINSERT:
 688                 if (!argument.empty()) {
 689                         bv->lockedInsetStoreUndo(Undo::EDIT);
 690                         if (argument.size() == 1)
 691                                 result = mathcursor->interpret(argument[0]) ? DISPATCHED : FINISHED_RIGHT;
 692                         else
 693                                 result = mathcursor->interpret(argument) ? DISPATCHED : FINISHED_RIGHT;
 694                         updateLocal(bv, true);
 695                 }
 696                 break;
 697
 698         case LFUN_MATH_PANEL:
 699                 result = UNDISPATCHED;
 700                 break;
 701
 702         case LFUN_ESCAPE:
 703                 if (mathcursor->selection())
 704                         mathcursor->selClear();
 705                 else
 706                         result = UNDISPATCHED;
 707                 break;
 708
 709         case LFUN_INSET_TOGGLE:
 710                 mathcursor->insetToggle();
 711                 updateLocal(bv, true);
 712                 break;
 713
 714         case LFUN_REF_INSERT:
 715                 //if (argument.empty()) {
 716                 //      InsetCommandParams p("ref");
 717                 //      owner_->getDialogs().createRef(p.getAsString());
 718                 //} else {
 719                 //      InsetCommandParams p;
 720                 //      p.setFromString(argument);
 721
 722                 //      InsetRef * inset = new InsetRef(p, *buffer_);
 723                 //      if (!insertInset(inset))
 724                 //              delete inset;
 725                 //      else
 726                 //              updateInset(inset, true);
 727                 //}
 728                 //
 729                 if (cmd.argument.empty()) {
 730                         InsetCommandParams p("ref");
 731                         bv->owner()->getDialogs().createRef(p.getAsString());
 732                 } else {
 733                         //mathcursor->handleNest(new InsetRef2);
 734                         //mathcursor->insert(arg);
 735                         mathcursor->insert(MathAtom(new RefInset(cmd.argument)));
 736                 }
 737                 updateLocal(bv, true);
 738                 break;
 739
 740         default:
 741                 result = UNDISPATCHED;
 742         }
 743
 744         mathcursor->normalize();
 745         mathcursor->touch();
 746
 747         lyx::Assert(mathcursor);
 748
 749         if (mathcursor->selection() || was_selection)
 750                 toggleInsetSelection(bv);
 751
 752         if (result == DISPATCHED || result == DISPATCHED_NOUPDATE ||
 753             result == UNDISPATCHED) {
 754                 fitInsetCursor(bv);
 755                 showInsetCursor(bv);
 756                 revealCodes(bv);
 757         } else {
 758                 releaseMathCursor(bv);
 759                 bv->unlockInset(this);
 760         }
 761
 762         return result;  // original version
 763 }
 764
 765
 766 void InsetFormulaBase::revealCodes(BufferView * bv) const
 767 {
 768         if (!mathcursor)
 769                 return;
 770         bv->owner()->message(mathcursor->info());
 771
 772 #if 0
 773         // write something to the minibuffer
 774         // translate to latex
 775         mathcursor->markInsert();
 776         ostringstream os;
 777         write(NULL, os);
 778         string str = os.str();
 779         mathcursor->markErase();
 780         string::size_type pos = 0;
 781         string res;
 782         for (string::iterator it = str.begin(); it != str.end(); ++it) {
 783                 if (*it == '\n')
 784                         res += ' ';
 785                 else if (*it == '\0') {
 786                         res += "  -X-  ";
 787                         pos = it - str.begin();
 788                 }
 789                 else
 790                         res += *it;
 791         }
 792         if (pos > 30)
 793                 res = res.substr(pos - 30);
 794         if (res.size() > 60)
 795                 res = res.substr(0, 60);
 796         bv->owner()->message(res);
 797 #endif
 798 }
 799
 800
 801 Inset::Code InsetFormulaBase::lyxCode() const
 802 {
 803         return Inset::MATH_CODE;
 804 }
 805
 806
 807 int InsetFormulaBase::ylow() const
 808 {
 809         return yo_ - ascent(view(), font_);
 810 }
 811
 812
 813 int InsetFormulaBase::yhigh() const
 814 {
 815         return yo_ + descent(view(), font_);
 816 }
 817
 818
 819 int InsetFormulaBase::xlow() const
 820 {
 821         return xo_;
 822 }
 823
 824
 825 int InsetFormulaBase::xhigh() const
 826 {
 827         return xo_ + width(view(), font_);
 828 }
 829
 830
 831 /////////////////////////////////////////////////////////////////////
 832
 833
 834 bool InsetFormulaBase::searchForward(BufferView * bv, string const & str,
 835                                      bool, bool)
 836 {
 837 #ifdef WITH_WARNINGS
 838 #warning pretty ugly
 839 #endif
 840         static InsetFormulaBase * lastformula = 0;
 841         static MathIterator current = MathIterator(ibegin(par().nucleus()));
 842         static MathArray ar;
 843         static string laststr;
 844
 845         if (lastformula != this || laststr != str) {
 846                 //lyxerr << "reset lastformula to " << this << "\n";
 847                 lastformula = this;
 848                 laststr = str;
 849                 current = ibegin(par().nucleus());
 850                 ar.clear();
 851                 mathed_parse_cell(ar, str);
 852         } else {
 853                 ++current;
 854         }
 855         //lyxerr << "searching '" << str << "' in " << this << ar << endl;
 856
 857         for (MathIterator it = current; it != iend(par().nucleus()); ++it) {
 858                 if (it.cell().matchpart(ar, it.back().pos_)) {
 859                         bv->unlockInset(bv->theLockingInset());
 860                         if (!bv->lockInset(this)) {
 861                                 lyxerr << "Cannot lock inset" << endl;
 862                                 return false;
 863                         }
 864                         delete mathcursor;
 865                         mathcursor = new MathCursor(this, true);
 866                         metrics(bv);
 867                         mathcursor->setSelection(it, ar.size());
 868                         current = it;
 869                         it.jump(ar.size());
 870                         updateLocal(bv, false);
 871                         return true;
 872                 }
 873         }
 874
 875         //lyxerr << "not found!\n";
 876         lastformula = 0;
 877         return false;
 878 }
 879
 880
 881 bool InsetFormulaBase::searchBackward(BufferView * bv, string const & what,
 882                                       bool a, bool b)
 883 {
 884         lyxerr[Debug::MATHED] << "searching backward not implemented in mathed\n";
 885         return searchForward(bv, what, a, b);
 886 }
 887
 888
 889 bool InsetFormulaBase::display() const
 890 {
 891         return par()->asHullInset() && par()->asHullInset()->display();
 892 }
 893
 894
 895 /////////////////////////////////////////////////////////////////////
 896
 897
 898 void mathDispatchCreation(FuncRequest const & cmd, bool display)
 899 {
 900         BufferView * bv = cmd.view();
 901         // use selection if available..
 902         //string sel;
 903         //if (action == LFUN_MATH_IMPORT_SELECTION)
 904         //      sel = "";
 905         //else
 906
 907         string sel = bv->getLyXText()->selectionAsString(bv->buffer(), false);
 908
 909         if (sel.empty()) {
 910                 InsetFormula * f = new InsetFormula(bv);
 911                 if (openNewInset(bv, f)) {
 912                         bv->theLockingInset()->
 913                                 localDispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
 914                         // don't do that also for LFUN_MATH_MODE unless you want end up with
 915                         // always changing to mathrm when opening an inlined inset
 916                         // -- I really hate "LyXfunc overloading"...
 917                         if (display)
 918                                 f->localDispatch(FuncRequest(bv, LFUN_MATH_DISPLAY));
 919                         f->localDispatch(FuncRequest(bv, LFUN_INSERT_MATH, cmd.argument));
 920                 }
 921         } else {
 922                 // create a macro if we see "\\newcommand" somewhere, and an ordinary
 923                 // formula otherwise
 924                 InsetFormulaBase * f;
 925                 if (sel.find("\\newcommand") == string::npos &&
 926                                 sel.find("\\def") == string::npos)
 927                         f = new InsetFormula(sel);
 928                 else
 929                         f = new InsetFormulaMacro(sel);
 930                 bv->getLyXText()->cutSelection(bv);
 931                 openNewInset(bv, f);
 932         }
 933         cmd.message(N_("Math editor mode"));
 934 }
 935
 936
 937 void mathDispatch(FuncRequest const & cmd)
 938 {
 939         BufferView * bv = cmd.view();
 940         if (!bv->available())
 941                 return;
 942
 943         switch (cmd.action) {
 944
 945                 case LFUN_MATH_DISPLAY:
 946                         mathDispatchCreation(cmd, true);
 947                         break;
 948
 949                 case LFUN_MATH_MODE:
 950                         mathDispatchCreation(cmd, false);
 951                         break;
 952
 953                 case LFUN_MATH_IMPORT_SELECTION:
 954                         mathDispatchCreation(cmd, false);
 955                         break;
 956
 957                 case LFUN_MATH_MACRO:
 958                         if (cmd.argument.empty())
 959                                 cmd.errorMessage(N_("Missing argument"));
 960                         else {
 961                                 string s = cmd.argument;
 962                                 string const s1 = token(s, ' ', 1);
 963                                 int const na = s1.empty() ? 0 : lyx::atoi(s1);
 964                                 openNewInset(bv, new InsetFormulaMacro(token(s, ' ', 0), na));
 965                         }
 966                         break;
 967
 968                 case LFUN_GREEK:
 969                 case LFUN_INSERT_MATH:
 970                 case LFUN_INSERT_MATRIX:
 971                 case LFUN_MATH_DELIM: {
 972                         InsetFormula * f = new InsetFormula(bv);
 973                         if (openNewInset(bv, f)) {
 974                                 bv->theLockingInset()->
 975                                         localDispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
 976                                 bv->theLockingInset()->localDispatch(cmd);
 977                         }
 978                         break;
 979                 }
 980                 default:
 981                         break;
 982         }
 983 }