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                 case LFUN_MOUSE_DOUBLE:
 395                         //lyxerr << "Mouse double\n";
 396                         return localDispatch(FuncRequest(LFUN_WORDSEL));
 397                 default:
 398                         break;
 399         }
 400
 401         if (!mathcursor)
 402                 return UNDISPATCHED;
 403
 404         BufferView * bv    = cmd.view();
 405         string argument    = cmd.argument;
 406         RESULT result      = DISPATCHED;
 407         bool sel           = false;
 408         bool was_macro     = mathcursor->inMacroMode();
 409         bool was_selection = mathcursor->selection();
 410
 411         hideInsetCursor(bv);
 412
 413         mathcursor->normalize();
 414         mathcursor->touch();
 415
 416         switch (cmd.action) {
 417
 418         case LFUN_MATH_MUTATE:
 419         case LFUN_MATH_DISPLAY:
 420         case LFUN_MATH_NUMBER:
 421         case LFUN_MATH_NONUMBER:
 422         case LFUN_TABINSERT:
 423         case LFUN_BREAKLINE:
 424         case LFUN_DELETE_LINE_FORWARD:
 425         case LFUN_INSERT_LABEL:
 426         case LFUN_MATH_EXTERN:
 427         case LFUN_TABULAR_FEATURE:
 428         case LFUN_PASTESELECTION:
 429         case LFUN_MATH_LIMITS:
 430                 bv->lockedInsetStoreUndo(Undo::EDIT);
 431                 mathcursor->dispatch(cmd);
 432                 updateLocal(bv, true);
 433                 break;
 434
 435         case LFUN_WORDRIGHTSEL:
 436         case LFUN_RIGHTSEL:
 437                 sel = true; // fall through...
 438         case LFUN_RIGHT:
 439                 result = mathcursor->right(sel) ? DISPATCHED : FINISHED_RIGHT;
 440                 //lyxerr << "calling scroll 20\n";
 441                 //scroll(bv, 20);
 442                 updateLocal(bv, false);
 443                 // write something to the minibuffer
 444                 //bv->owner()->message(mathcursor->info());
 445                 break;
 446
 447         case LFUN_WORDLEFTSEL:
 448         case LFUN_LEFTSEL:
 449                 sel = true; // fall through
 450         case LFUN_LEFT:
 451                 result = mathcursor->left(sel) ? DISPATCHED : FINISHED;
 452                 updateLocal(bv, false);
 453                 break;
 454
 455         case LFUN_UPSEL:
 456                 sel = true; // fall through
 457         case LFUN_UP:
 458                 result = mathcursor->up(sel) ? DISPATCHED : FINISHED_UP;
 459                 updateLocal(bv, false);
 460                 break;
 461
 462         case LFUN_DOWNSEL:
 463                 sel = true; // fall through
 464         case LFUN_DOWN:
 465                 result = mathcursor->down(sel) ? DISPATCHED : FINISHED_DOWN;
 466                 updateLocal(bv, false);
 467                 break;
 468
 469         case LFUN_WORDSEL:
 470                 mathcursor->home(false);
 471                 mathcursor->end(true);
 472                 updateLocal(bv, false);
 473                 break;
 474
 475         case LFUN_HOMESEL:
 476                 sel = true; // fall through
 477         case LFUN_HOME:
 478                 result = mathcursor->home(sel) ? DISPATCHED : FINISHED;
 479                 updateLocal(bv, false);
 480                 break;
 481
 482         case LFUN_ENDSEL:
 483                 sel = true; // fall through
 484         case LFUN_END:
 485                 result = mathcursor->end(sel) ? DISPATCHED : FINISHED_RIGHT;
 486                 updateLocal(bv, false);
 487                 break;
 488
 489         case LFUN_PRIORSEL:
 490         case LFUN_PRIOR:
 491                 result = FINISHED_UP;
 492                 updateLocal(bv, false);
 493                 break;
 494
 495         case LFUN_NEXTSEL:
 496         case LFUN_NEXT:
 497                 result = FINISHED_DOWN;
 498                 updateLocal(bv, false);
 499                 break;
 500
 501         case LFUN_TAB:
 502                 mathcursor->idxNext();
 503                 updateLocal(bv, false);
 504                 break;
 505
 506         case LFUN_SHIFT_TAB:
 507                 mathcursor->idxPrev();
 508                 updateLocal(bv, false);
 509                 break;
 510
 511         case LFUN_DELETE_WORD_BACKWARD:
 512         case LFUN_BACKSPACE:
 513                 bv->lockedInsetStoreUndo(Undo::DELETE);
 514                 mathcursor->backspace();
 515                 updateLocal(bv, true);
 516                 break;
 517
 518         case LFUN_DELETE_WORD_FORWARD:
 519         case LFUN_DELETE:
 520                 bv->lockedInsetStoreUndo(Undo::DELETE);
 521                 mathcursor->erase();
 522                 bv->updateInset(this, true);
 523                 break;
 524
 525         //    case LFUN_GETXY:
 526         //      sprintf(dispatch_buffer, "%d %d",);
 527         //      dispatch_result = dispatch_buffer;
 528         //      break;
 529         case LFUN_SETXY: {
 530                 lyxerr << "LFUN_SETXY broken!\n";
 531                 int x = 0;
 532                 int y = 0;
 533                 istringstream is(cmd.argument.c_str());
 534                 is >> x >> y;
 535                 mathcursor->setPos(x, y);
 536                 updateLocal(bv, false);
 537                 break;
 538         }
 539
 540         case LFUN_PASTE:
 541                 if (was_macro)
 542                         mathcursor->macroModeClose();
 543                 bv->lockedInsetStoreUndo(Undo::EDIT);
 544                 mathcursor->selPaste();
 545                 updateLocal(bv, true);
 546                 break;
 547
 548         case LFUN_CUT:
 549                 bv->lockedInsetStoreUndo(Undo::DELETE);
 550                 mathcursor->selCut();
 551                 updateLocal(bv, true);
 552                 break;
 553
 554         case LFUN_COPY:
 555                 mathcursor->selCopy();
 556                 break;
 557
 558
 559         // Special casing for superscript in case of LyX handling
 560         // dead-keys:
 561         case LFUN_CIRCUMFLEX:
 562                 if (cmd.argument.empty()) {
 563                         // do superscript if LyX handles
 564                         // deadkeys
 565                         bv->lockedInsetStoreUndo(Undo::EDIT);
 566                         mathcursor->script(true);
 567                         updateLocal(bv, true);
 568                 }
 569                 break;
 570
 571         case LFUN_UMLAUT:
 572         case LFUN_ACUTE:
 573         case LFUN_GRAVE:
 574         case LFUN_BREVE:
 575         case LFUN_DOT:
 576         case LFUN_MACRON:
 577         case LFUN_CARON:
 578         case LFUN_TILDE:
 579         case LFUN_CEDILLA:
 580         case LFUN_CIRCLE:
 581         case LFUN_UNDERDOT:
 582         case LFUN_TIE:
 583         case LFUN_OGONEK:
 584         case LFUN_HUNG_UMLAUT:
 585                 break;
 586
 587         //  Math fonts
 588         case LFUN_GREEK_TOGGLE: handleFont(bv, cmd.argument, "lyxgreek"); break;
 589         case LFUN_BOLD:         handleFont(bv, cmd.argument, "textbf"); break;
 590         case LFUN_SANS:         handleFont(bv, cmd.argument, "textsf"); break;
 591         case LFUN_EMPH:         handleFont(bv, cmd.argument, "mathcal"); break;
 592         case LFUN_ROMAN:        handleFont(bv, cmd.argument, "mathrm"); break;
 593         case LFUN_CODE:         handleFont(bv, cmd.argument, "texttt"); break;
 594         case LFUN_FRAK:         handleFont(bv, cmd.argument, "mathfrak"); break;
 595         case LFUN_ITAL:         handleFont(bv, cmd.argument, "mathit"); break;
 596         case LFUN_NOUN:         handleFont(bv, cmd.argument, "mathbb"); break;
 597         case LFUN_FREE:         handleFont(bv, cmd.argument, "textrm"); break;
 598         case LFUN_DEFAULT:      handleFont(bv, cmd.argument, "textnormal"); break;
 599
 600         case LFUN_GREEK:
 601                 handleFont(bv, cmd.argument, "lyxgreek1");
 602                 if (cmd.argument.size())
 603                         mathcursor->interpret(cmd.argument);
 604                 break;
 605
 606         case LFUN_MATH_MODE:
 607                 if (mathcursor->currentMode())
 608                         handleFont(bv, cmd.argument, "textrm");
 609                 else {
 610                         mathcursor->niceInsert(MathAtom(new MathHullInset("simple")));
 611                         updateLocal(bv, true);
 612                 }
 613                 //bv->owner()->message(_("math text mode toggled"));
 614                 break;
 615
 616         case LFUN_MATH_SIZE:
 617 #if 0
 618                 if (!arg.empty()) {
 619                         bv->lockedInsetStoreUndo(Undo::EDIT);
 620                         mathcursor->setSize(arg);
 621                         updateLocal(bv, true);
 622                 }
 623 #endif
 624                 break;
 625
 626         case LFUN_INSERT_MATRIX:
 627                 if (!cmd.argument.empty()) {
 628                         bv->lockedInsetStoreUndo(Undo::EDIT);
 629                         mathcursor->interpret("matrix " + cmd.argument);
 630                         updateLocal(bv, true);
 631                 }
 632                 break;
 633
 634         case LFUN_SUPERSCRIPT:
 635         case LFUN_SUBSCRIPT:
 636         {
 637                 bv->lockedInsetStoreUndo(Undo::EDIT);
 638                 mathcursor->script(cmd.action == LFUN_SUPERSCRIPT);
 639                 updateLocal(bv, true);
 640                 break;
 641         }
 642
 643         case LFUN_MATH_DELIM:
 644         {
 645                 //lyxerr << "formulabase::LFUN_MATH_DELIM, arg: '" << arg << "'\n";
 646                 string ls;
 647                 string rs = split(cmd.argument, ls, ' ');
 648                 // Reasonable default values
 649                 if (ls.empty())
 650                         ls = '(';
 651                 if (rs.empty())
 652                         rs = ')';
 653
 654                 bv->lockedInsetStoreUndo(Undo::EDIT);
 655                 mathcursor->handleNest(MathAtom(new MathDelimInset(ls, rs)));
 656                 updateLocal(bv, true);
 657                 break;
 658         }
 659
 660         case LFUN_PROTECTEDSPACE:
 661         case LFUN_MATH_SPACE:
 662                 bv->lockedInsetStoreUndo(Undo::EDIT);
 663                 mathcursor->insert(MathAtom(new MathSpaceInset(",")));
 664                 updateLocal(bv, true);
 665                 break;
 666
 667         case LFUN_UNDO:
 668                 bv->owner()->message(_("Invalid action in math mode!"));
 669                 break;
 670
 671
 672         case LFUN_EXEC_COMMAND:
 673                 result = UNDISPATCHED;
 674                 break;
 675
 676         case LFUN_INSET_ERT:
 677                 // interpret this as if a backslash was typed
 678                 bv->lockedInsetStoreUndo(Undo::EDIT);
 679                 mathcursor->interpret('\\');
 680                 updateLocal(bv, true);
 681                 break;
 682
 683         case LFUN_BREAKPARAGRAPH:
 684         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
 685         case LFUN_BREAKPARAGRAPH_SKIP:
 686                 argument = "\n";
 687                 // fall through
 688
 689         case -1:
 690         case LFUN_INSERT_MATH:
 691         case LFUN_SELFINSERT:
 692                 if (!argument.empty()) {
 693                         bv->lockedInsetStoreUndo(Undo::EDIT);
 694                         if (argument.size() == 1)
 695                                 result = mathcursor->interpret(argument[0]) ? DISPATCHED : FINISHED_RIGHT;
 696                         else
 697                                 result = mathcursor->interpret(argument) ? DISPATCHED : FINISHED_RIGHT;
 698                         updateLocal(bv, true);
 699                 }
 700                 break;
 701
 702         case LFUN_MATH_PANEL:
 703                 result = UNDISPATCHED;
 704                 break;
 705
 706         case LFUN_ESCAPE:
 707                 if (mathcursor->selection())
 708                         mathcursor->selClear();
 709                 else
 710                         result = UNDISPATCHED;
 711                 break;
 712
 713         case LFUN_INSET_TOGGLE:
 714                 mathcursor->insetToggle();
 715                 updateLocal(bv, true);
 716                 break;
 717
 718         case LFUN_REF_INSERT:
 719                 //if (argument.empty()) {
 720                 //      InsetCommandParams p("ref");
 721                 //      owner_->getDialogs().createRef(p.getAsString());
 722                 //} else {
 723                 //      InsetCommandParams p;
 724                 //      p.setFromString(argument);
 725
 726                 //      InsetRef * inset = new InsetRef(p, *buffer_);
 727                 //      if (!insertInset(inset))
 728                 //              delete inset;
 729                 //      else
 730                 //              updateInset(inset, true);
 731                 //}
 732                 //
 733                 if (cmd.argument.empty()) {
 734                         InsetCommandParams p("ref");
 735                         bv->owner()->getDialogs().createRef(p.getAsString());
 736                 } else {
 737                         //mathcursor->handleNest(new InsetRef2);
 738                         //mathcursor->insert(arg);
 739                         mathcursor->insert(MathAtom(new RefInset(cmd.argument)));
 740                 }
 741                 updateLocal(bv, true);
 742                 break;
 743
 744         default:
 745                 result = UNDISPATCHED;
 746         }
 747
 748         mathcursor->normalize();
 749         mathcursor->touch();
 750
 751         lyx::Assert(mathcursor);
 752
 753         if (mathcursor->selection() || was_selection)
 754                 toggleInsetSelection(bv);
 755
 756         if (result == DISPATCHED || result == DISPATCHED_NOUPDATE ||
 757             result == UNDISPATCHED) {
 758                 fitInsetCursor(bv);
 759                 showInsetCursor(bv);
 760                 revealCodes(bv);
 761         } else {
 762                 releaseMathCursor(bv);
 763                 bv->unlockInset(this);
 764         }
 765
 766         return result;  // original version
 767 }
 768
 769
 770 void InsetFormulaBase::revealCodes(BufferView * bv) const
 771 {
 772         if (!mathcursor)
 773                 return;
 774         bv->owner()->message(mathcursor->info());
 775
 776 #if 0
 777         // write something to the minibuffer
 778         // translate to latex
 779         mathcursor->markInsert();
 780         ostringstream os;
 781         write(NULL, os);
 782         string str = os.str();
 783         mathcursor->markErase();
 784         string::size_type pos = 0;
 785         string res;
 786         for (string::iterator it = str.begin(); it != str.end(); ++it) {
 787                 if (*it == '\n')
 788                         res += ' ';
 789                 else if (*it == '\0') {
 790                         res += "  -X-  ";
 791                         pos = it - str.begin();
 792                 }
 793                 else
 794                         res += *it;
 795         }
 796         if (pos > 30)
 797                 res = res.substr(pos - 30);
 798         if (res.size() > 60)
 799                 res = res.substr(0, 60);
 800         bv->owner()->message(res);
 801 #endif
 802 }
 803
 804
 805 Inset::Code InsetFormulaBase::lyxCode() const
 806 {
 807         return Inset::MATH_CODE;
 808 }
 809
 810
 811 int InsetFormulaBase::ylow() const
 812 {
 813         return yo_ - ascent(view(), font_);
 814 }
 815
 816
 817 int InsetFormulaBase::yhigh() const
 818 {
 819         return yo_ + descent(view(), font_);
 820 }
 821
 822
 823 int InsetFormulaBase::xlow() const
 824 {
 825         return xo_;
 826 }
 827
 828
 829 int InsetFormulaBase::xhigh() const
 830 {
 831         return xo_ + width(view(), font_);
 832 }
 833
 834
 835 /////////////////////////////////////////////////////////////////////
 836
 837
 838 bool InsetFormulaBase::searchForward(BufferView * bv, string const & str,
 839                                      bool, bool)
 840 {
 841 #ifdef WITH_WARNINGS
 842 #warning pretty ugly
 843 #endif
 844         static InsetFormulaBase * lastformula = 0;
 845         static MathIterator current = MathIterator(ibegin(par().nucleus()));
 846         static MathArray ar;
 847         static string laststr;
 848
 849         if (lastformula != this || laststr != str) {
 850                 //lyxerr << "reset lastformula to " << this << "\n";
 851                 lastformula = this;
 852                 laststr = str;
 853                 current = ibegin(par().nucleus());
 854                 ar.clear();
 855                 mathed_parse_cell(ar, str);
 856         } else {
 857                 ++current;
 858         }
 859         //lyxerr << "searching '" << str << "' in " << this << ar << endl;
 860
 861         for (MathIterator it = current; it != iend(par().nucleus()); ++it) {
 862                 if (it.cell().matchpart(ar, it.back().pos_)) {
 863                         bv->unlockInset(bv->theLockingInset());
 864                         if (!bv->lockInset(this)) {
 865                                 lyxerr << "Cannot lock inset" << endl;
 866                                 return false;
 867                         }
 868                         delete mathcursor;
 869                         mathcursor = new MathCursor(this, true);
 870                         metrics(bv);
 871                         mathcursor->setSelection(it, ar.size());
 872                         current = it;
 873                         it.jump(ar.size());
 874                         updateLocal(bv, false);
 875                         return true;
 876                 }
 877         }
 878
 879         //lyxerr << "not found!\n";
 880         lastformula = 0;
 881         return false;
 882 }
 883
 884
 885 bool InsetFormulaBase::searchBackward(BufferView * bv, string const & what,
 886                                       bool a, bool b)
 887 {
 888         lyxerr[Debug::MATHED] << "searching backward not implemented in mathed\n";
 889         return searchForward(bv, what, a, b);
 890 }
 891
 892
 893 bool InsetFormulaBase::display() const
 894 {
 895         return par()->asHullInset() && par()->asHullInset()->display();
 896 }
 897
 898
 899 /////////////////////////////////////////////////////////////////////
 900
 901
 902 void mathDispatchCreation(FuncRequest const & cmd, bool display)
 903 {
 904         BufferView * bv = cmd.view();
 905         // use selection if available..
 906         //string sel;
 907         //if (action == LFUN_MATH_IMPORT_SELECTION)
 908         //      sel = "";
 909         //else
 910
 911         string sel = bv->getLyXText()->selectionAsString(bv->buffer(), false);
 912
 913         if (sel.empty()) {
 914                 InsetFormula * f = new InsetFormula(bv);
 915                 if (openNewInset(bv, f)) {
 916                         bv->theLockingInset()->
 917                                 localDispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
 918                         // don't do that also for LFUN_MATH_MODE unless you want end up with
 919                         // always changing to mathrm when opening an inlined inset
 920                         // -- I really hate "LyXfunc overloading"...
 921                         if (display)
 922                                 f->localDispatch(FuncRequest(bv, LFUN_MATH_DISPLAY));
 923                         f->localDispatch(FuncRequest(bv, LFUN_INSERT_MATH, cmd.argument));
 924                 }
 925         } else {
 926                 // create a macro if we see "\\newcommand" somewhere, and an ordinary
 927                 // formula otherwise
 928                 InsetFormulaBase * f;
 929                 if (sel.find("\\newcommand") == string::npos &&
 930                                 sel.find("\\def") == string::npos)
 931                         f = new InsetFormula(sel);
 932                 else
 933                         f = new InsetFormulaMacro(sel);
 934                 bv->getLyXText()->cutSelection(bv);
 935                 openNewInset(bv, f);
 936         }
 937         cmd.message(N_("Math editor mode"));
 938 }
 939
 940
 941 void mathDispatch(FuncRequest const & cmd)
 942 {
 943         BufferView * bv = cmd.view();
 944         if (!bv->available())
 945                 return;
 946
 947         switch (cmd.action) {
 948
 949                 case LFUN_MATH_DISPLAY:
 950                         mathDispatchCreation(cmd, true);
 951                         break;
 952
 953                 case LFUN_MATH_MODE:
 954                         mathDispatchCreation(cmd, false);
 955                         break;
 956
 957                 case LFUN_MATH_IMPORT_SELECTION:
 958                         mathDispatchCreation(cmd, false);
 959                         break;
 960
 961                 case LFUN_MATH_MACRO:
 962                         if (cmd.argument.empty())
 963                                 cmd.errorMessage(N_("Missing argument"));
 964                         else {
 965                                 string s = cmd.argument;
 966                                 string const s1 = token(s, ' ', 1);
 967                                 int const na = s1.empty() ? 0 : lyx::atoi(s1);
 968                                 openNewInset(bv, new InsetFormulaMacro(token(s, ' ', 0), na));
 969                         }
 970                         break;
 971
 972                 case LFUN_GREEK:
 973                 case LFUN_INSERT_MATH:
 974                 case LFUN_INSERT_MATRIX:
 975                 case LFUN_MATH_DELIM: {
 976                         InsetFormula * f = new InsetFormula(bv);
 977                         if (openNewInset(bv, f)) {
 978                                 bv->theLockingInset()->
 979                                         localDispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
 980                                 bv->theLockingInset()->localDispatch(cmd);
 981                         }
 982                         break;
 983                 }
 984                 default:
 985                         break;
 986         }
 987 }