src/mathed/formulabase.C

   1 /**
   2  * \file formulabase.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Alejandro Aguilar Sierra
   7  * \author André Pönitz
   8  *
   9  * Full author contact details are available in file CREDITS.
  10  */
  11
  12 #include <config.h>
  13
  14 #include "Lsstream.h"
  15 #include "support/LAssert.h"
  16 #include "formula.h"
  17 #include "formulamacro.h"
  18 #include "lyxrc.h"
  19 #include "funcrequest.h"
  20 #include "BufferView.h"
  21 #include "lyxtext.h"
  22 #include "gettext.h"
  23 #include "LaTeXFeatures.h"
  24 #include "debug.h"
  25 #include "math_support.h"
  26 #include "metricsinfo.h"
  27 #include "math_data.h"
  28 #include "support/lstrings.h"
  29 #include "support/lyxlib.h"
  30 #include "frontends/LyXView.h"
  31 #include "frontends/font_metrics.h"
  32 #include "frontends/mouse_state.h"
  33 #include "math_arrayinset.h"
  34 #include "math_charinset.h"
  35 #include "math_deliminset.h"
  36 #include "math_cursor.h"
  37 #include "math_factory.h"
  38 #include "math_fontinset.h"
  39 #include "math_hullinset.h"
  40 #include "math_iterator.h"
  41 #include "math_macrotable.h"
  42 #include "math_parser.h"
  43 #include "math_pos.h"
  44 #include "math_spaceinset.h"
  45 #include "undo_funcs.h"
  46 #include "textpainter.h"
  47 #include "frontends/Dialogs.h"
  48 #include "intl.h"
  49 #include "ref_inset.h"
  50
  51 #include <fstream>
  52
  53 using namespace lyx::support;
  54
  55 using std::endl;
  56 using std::ostream;
  57 using std::vector;
  58 using std::abs;
  59 using std::max;
  60
  61
  62 MathCursor * mathcursor = 0;
  63
  64 namespace {
  65
  66 // local global
  67 int first_x;
  68 int first_y;
  69
  70 bool openNewInset(BufferView * bv, UpdatableInset * new_inset)
  71 {
  72         if (!bv->insertInset(new_inset)) {
  73                 delete new_inset;
  74                 return false;
  75         }
  76         new_inset->localDispatch(FuncRequest(bv, LFUN_INSET_EDIT, "left"));
  77         return true;
  78 }
  79
  80
  81 } // namespace anon
  82
  83
  84
  85 InsetFormulaBase::InsetFormulaBase()
  86         : view_(0), xo_(0), yo_(0)
  87 {
  88         // This is needed as long the math parser is not re-entrant
  89         initMath();
  90         //lyxerr << "sizeof MathInset: " << sizeof(MathInset) << endl;
  91         //lyxerr << "sizeof MetricsInfo: " << sizeof(MetricsInfo) << endl;
  92         //lyxerr << "sizeof MathCharInset: " << sizeof(MathCharInset) << endl;
  93         //lyxerr << "sizeof LyXFont: " << sizeof(LyXFont) << endl;
  94 }
  95
  96
  97 // simply scrap this function if you want
  98 void InsetFormulaBase::mutateToText()
  99 {
 100 #if 0
 101         // translate to latex
 102         ostringstream os;
 103         latex(NULL, os, false, false);
 104         string str = os.str();
 105
 106         // insert this text
 107         LyXText * lt = view_->getLyXText();
 108         string::const_iterator cit = str.begin();
 109         string::const_iterator end = str.end();
 110         for (; cit != end; ++cit)
 111                 view_->owner()->getIntl()->getTransManager().TranslateAndInsert(*cit, lt);
 112
 113         // remove ourselves
 114         //view_->owner()->dispatch(LFUN_ESCAPE);
 115 #endif
 116 }
 117
 118
 119 void InsetFormulaBase::handleFont
 120         (BufferView * bv, string const & arg, string const & font)
 121 {
 122         // this whole function is a hack and won't work for incremental font
 123         // changes...
 124         recordUndo(bv, Undo::ATOMIC);
 125
 126         if (mathcursor->inset()->name() == font)
 127                 mathcursor->handleFont(font);
 128         else {
 129                 mathcursor->handleNest(createMathInset(font));
 130                 mathcursor->insert(arg);
 131         }
 132 }
 133
 134
 135 BufferView * InsetFormulaBase::view() const
 136 {
 137         return view_;
 138 }
 139
 140
 141 void InsetFormulaBase::validate(LaTeXFeatures &) const
 142 {}
 143
 144
 145 string const InsetFormulaBase::editMessage() const
 146 {
 147         return _("Math editor mode");
 148 }
 149
 150
 151 void InsetFormulaBase::insetUnlock(BufferView * bv)
 152 {
 153         if (mathcursor) {
 154                 if (mathcursor->inMacroMode()) {
 155                         mathcursor->macroModeClose();
 156                         bv->updateInset(this);
 157                 }
 158                 releaseMathCursor(bv);
 159         }
 160         generatePreview();
 161         bv->updateInset(this);
 162 }
 163
 164
 165 void InsetFormulaBase::getCursor(BufferView &, int & x, int & y) const
 166 {
 167         mathcursor->getPos(x, y);
 168 }
 169
 170
 171 void InsetFormulaBase::getCursorPos(BufferView *, int & x, int & y) const
 172 {
 173         // calling metrics here destroys the cached xo,yo positions e.g. in
 174         // MathParboxinset. And it would be too expensive anyway...
 175         //metrics(bv);
 176         if (!mathcursor) {
 177                 lyxerr << "getCursorPos - should not happen";
 178                 x = y = 0;
 179                 return;
 180         }
 181         mathcursor->getPos(x, y);
 182         x = mathcursor->targetX();
 183         x -= xo_;
 184         y -= yo_;
 185         //lyxerr << "getCursorPos: " << x << ' ' << y << endl;
 186 }
 187
 188
 189 void InsetFormulaBase::fitInsetCursor(BufferView * bv) const
 190 {
 191         if (!mathcursor)
 192                 return;
 193         int x, y, asc, des;
 194         asc = 10;
 195         des = 2;
 196         //math_font_max_dim(font_, asc, des);
 197         getCursorPos(bv, x, y);
 198         //y += yo_;
 199         //lyxerr << "fitInsetCursor: x: " << x << " y: " << y << " yo: " << yo_ << endl;
 200         bv->fitLockedInsetCursor(x, y, asc, des);
 201 }
 202
 203
 204 void InsetFormulaBase::toggleInsetSelection(BufferView * bv)
 205 {
 206         if (mathcursor)
 207                 bv->updateInset(this);
 208 }
 209
 210
 211 dispatch_result InsetFormulaBase::lfunMouseRelease(FuncRequest const & cmd)
 212 {
 213         if (!mathcursor)
 214                 return UNDISPATCHED;
 215
 216         BufferView * bv = cmd.view();
 217         bv->updateInset(this);
 218         //lyxerr << "lfunMouseRelease: buttons: " << cmd.button() << endl;
 219
 220         if (cmd.button() == mouse_button::button3) {
 221                 // try to dispatch to enclosed insets first
 222                 if (mathcursor->dispatch(cmd) == UNDISPATCHED) {
 223                         // launch math panel for right mouse button
 224                         lyxerr << "lfunMouseRelease: undispatched: " << cmd.button() << endl;
 225                         bv->owner()->getDialogs().show("mathpanel");
 226                 }
 227                 return DISPATCHED;
 228         }
 229
 230         if (cmd.button() == mouse_button::button2) {
 231                 MathArray ar;
 232                 asArray(bv->getClipboard(), ar);
 233                 mathcursor->selClear();
 234                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 235                 mathcursor->insert(ar);
 236                 bv->updateInset(this);
 237                 return DISPATCHED;
 238         }
 239
 240         if (cmd.button() == mouse_button::button1) {
 241                 // try to dispatch to enclosed insets first
 242                 mathcursor->dispatch(cmd);
 243                 cmd.view()->stuffClipboard(mathcursor->grabSelection());
 244                 // try to set the cursor
 245                 //delete mathcursor;
 246                 //mathcursor = new MathCursor(this, x == 0);
 247                 //metrics(bv);
 248                 //mathcursor->setPos(x + xo_, y + yo_);
 249                 return DISPATCHED;
 250         }
 251
 252         return UNDISPATCHED;
 253 }
 254
 255
 256 dispatch_result InsetFormulaBase::lfunMousePress(FuncRequest const & cmd)
 257 {
 258         BufferView * bv = cmd.view();
 259         //lyxerr << "lfunMousePress: buttons: " << cmd.button() << endl;
 260
 261         if (!mathcursor || mathcursor->formula() != this) {
 262                 lyxerr[Debug::MATHED] << "re-create cursor" << endl;
 263                 releaseMathCursor(bv);
 264                 mathcursor = new MathCursor(this, cmd.x == 0);
 265                 //metrics(bv);
 266                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 267         }
 268
 269         if (cmd.button() == mouse_button::button3) {
 270                 mathcursor->dispatch(cmd);
 271                 return DISPATCHED;
 272         }
 273
 274         if (cmd.button() == mouse_button::button1) {
 275                 first_x = cmd.x;
 276                 first_y = cmd.y;
 277                 mathcursor->selClear();
 278                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 279                 mathcursor->dispatch(cmd);
 280                 return DISPATCHED;
 281         }
 282
 283         bv->updateInset(this);
 284         return DISPATCHED;
 285 }
 286
 287
 288 dispatch_result InsetFormulaBase::lfunMouseMotion(FuncRequest const & cmd)
 289 {
 290         if (!mathcursor)
 291                 return DISPATCHED;
 292
 293         if (mathcursor->dispatch(FuncRequest(cmd)) != UNDISPATCHED)
 294                 return DISPATCHED;
 295
 296         // only select with button 1
 297         if (cmd.button() != mouse_button::button1)
 298                 return DISPATCHED;
 299
 300         if (abs(cmd.x - first_x) < 2 && abs(cmd.y - first_y) < 2)
 301                 return DISPATCHED;
 302
 303         first_x = cmd.x;
 304         first_y = cmd.y;
 305
 306         if (!mathcursor->selection())
 307                 mathcursor->selStart();
 308
 309         BufferView * bv = cmd.view();
 310         mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 311         bv->updateInset(this);
 312         return DISPATCHED;
 313 }
 314
 315
 316 dispatch_result InsetFormulaBase::localDispatch(FuncRequest const & cmd)
 317 {
 318         //lyxerr << "InsetFormulaBase::localDispatch: act: " << cmd.action
 319         //      << " arg: '" << cmd.argument
 320         //      << " x: '" << cmd.x
 321         //      << " y: '" << cmd.y
 322         //      << "' button: " << cmd.button() << endl;
 323
 324         BufferView * bv = cmd.view();
 325
 326         // delete empty mathbox (LFUN_BACKSPACE and LFUN_DELETE)
 327         bool remove_inset = false;
 328
 329         switch (cmd.action) {
 330                 case LFUN_INSET_EDIT:
 331                         lyxerr << "Called EDIT with '" << cmd.argument << "'" << endl;
 332                         if (!bv->lockInset(this))
 333                                 lyxerr << "Cannot lock math inset in edit call!" << endl;
 334                         releaseMathCursor(bv);
 335                         if (!cmd.argument.empty()) {
 336                                 mathcursor = new MathCursor(this, cmd.argument == "left");
 337                                 //metrics(bv);
 338                         } else {
 339                                 mathcursor = new MathCursor(this, true);
 340                                 //metrics(bv);
 341                                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 342                         }
 343                         // if that is removed, we won't get the magenta box when entering an
 344                         // inset for the first time
 345                         bv->updateInset(this);
 346                         return DISPATCHED;
 347
 348                 case LFUN_MOUSE_PRESS:
 349                         //lyxerr << "Mouse single press" << endl;
 350                         return lfunMousePress(cmd);
 351                 case LFUN_MOUSE_MOTION:
 352                         //lyxerr << "Mouse motion" << endl;
 353                         return lfunMouseMotion(cmd);
 354                 case LFUN_MOUSE_RELEASE:
 355                         //lyxerr << "Mouse single release" << endl;
 356                         return lfunMouseRelease(cmd);
 357                 case LFUN_MOUSE_DOUBLE:
 358                         //lyxerr << "Mouse double" << endl;
 359                         return localDispatch(FuncRequest(LFUN_WORDSEL));
 360                 default:
 361                         break;
 362         }
 363
 364         if (!mathcursor)
 365                 return UNDISPATCHED;
 366
 367         string argument    = cmd.argument;
 368         RESULT result      = DISPATCHED;
 369         bool sel           = false;
 370         bool was_macro     = mathcursor->inMacroMode();
 371         bool was_selection = mathcursor->selection();
 372
 373         mathcursor->normalize();
 374         mathcursor->touch();
 375
 376         switch (cmd.action) {
 377
 378         case LFUN_MATH_MUTATE:
 379         case LFUN_MATH_DISPLAY:
 380         case LFUN_MATH_NUMBER:
 381         case LFUN_MATH_NONUMBER:
 382         case LFUN_CELL_SPLIT:
 383         case LFUN_BREAKLINE:
 384         case LFUN_DELETE_LINE_FORWARD:
 385         case LFUN_INSERT_LABEL:
 386         case LFUN_MATH_EXTERN:
 387         case LFUN_TABULAR_FEATURE:
 388         case LFUN_PASTESELECTION:
 389         case LFUN_MATH_LIMITS:
 390                 recordUndo(bv, Undo::ATOMIC);
 391                 mathcursor->dispatch(cmd);
 392                 break;
 393
 394         case LFUN_RIGHTSEL:
 395                 sel = true; // fall through...
 396         case LFUN_RIGHT:
 397                 result = mathcursor->right(sel) ? DISPATCHED : FINISHED_RIGHT;
 398                 //lyxerr << "calling scroll 20" << endl;
 399                 //scroll(bv, 20);
 400                 // write something to the minibuffer
 401                 //bv->owner()->message(mathcursor->info());
 402                 break;
 403
 404         case LFUN_LEFTSEL:
 405                 sel = true; // fall through
 406         case LFUN_LEFT:
 407                 result = mathcursor->left(sel) ? DISPATCHED : FINISHED;
 408                 break;
 409
 410         case LFUN_UPSEL:
 411                 sel = true; // fall through
 412         case LFUN_UP:
 413                 result = mathcursor->up(sel) ? DISPATCHED : FINISHED_UP;
 414                 break;
 415
 416         case LFUN_DOWNSEL:
 417                 sel = true; // fall through
 418         case LFUN_DOWN:
 419                 result = mathcursor->down(sel) ? DISPATCHED : FINISHED_DOWN;
 420                 break;
 421
 422         case LFUN_WORDSEL:
 423                 mathcursor->home(false);
 424                 mathcursor->end(true);
 425                 break;
 426
 427         case LFUN_UP_PARAGRAPHSEL:
 428         case LFUN_UP_PARAGRAPH:
 429         case LFUN_DOWN_PARAGRAPHSEL:
 430         case LFUN_DOWN_PARAGRAPH:
 431                 result = FINISHED;
 432                 break;
 433
 434         case LFUN_HOMESEL:
 435         case LFUN_WORDLEFTSEL:
 436                 sel = true; // fall through
 437         case LFUN_HOME:
 438         case LFUN_WORDLEFT:
 439                 result = mathcursor->home(sel) ? DISPATCHED : FINISHED;
 440                 break;
 441
 442         case LFUN_ENDSEL:
 443         case LFUN_WORDRIGHTSEL:
 444                 sel = true; // fall through
 445         case LFUN_END:
 446         case LFUN_WORDRIGHT:
 447                 result = mathcursor->end(sel) ? DISPATCHED : FINISHED_RIGHT;
 448                 break;
 449
 450         case LFUN_PRIORSEL:
 451         case LFUN_PRIOR:
 452         case LFUN_BEGINNINGBUFSEL:
 453         case LFUN_BEGINNINGBUF:
 454                 result = FINISHED;
 455                 break;
 456
 457         case LFUN_NEXTSEL:
 458         case LFUN_NEXT:
 459         case LFUN_ENDBUFSEL:
 460         case LFUN_ENDBUF:
 461                 result = FINISHED_RIGHT;
 462                 break;
 463
 464         case LFUN_CELL_FORWARD:
 465                 mathcursor->idxNext();
 466                 break;
 467
 468         case LFUN_CELL_BACKWARD:
 469                 mathcursor->idxPrev();
 470                 break;
 471
 472         case LFUN_DELETE_WORD_BACKWARD:
 473         case LFUN_BACKSPACE:
 474                 recordUndo(bv, Undo::ATOMIC);
 475                 if (!mathcursor->backspace()) {
 476                         result = FINISHED;
 477                         remove_inset = true;
 478                 }
 479                 break;
 480
 481         case LFUN_DELETE_WORD_FORWARD:
 482         case LFUN_DELETE:
 483                 recordUndo(bv, Undo::ATOMIC);
 484                 if (!mathcursor->erase()) {
 485                         result = FINISHED;
 486                         remove_inset = true;
 487                 }
 488                 break;
 489
 490         //    case LFUN_GETXY:
 491         //      sprintf(dispatch_buffer, "%d %d",);
 492         //      dispatch_result = dispatch_buffer;
 493         //      break;
 494         case LFUN_SETXY: {
 495                 lyxerr << "LFUN_SETXY broken!" << endl;
 496                 int x = 0;
 497                 int y = 0;
 498                 istringstream is(cmd.argument.c_str());
 499                 is >> x >> y;
 500                 mathcursor->setPos(x, y);
 501                 break;
 502         }
 503
 504         case LFUN_PASTE: {
 505                 size_t n = 0;
 506                 istringstream is(cmd.argument.c_str());
 507                 is >> n;
 508                 if (was_macro)
 509                         mathcursor->macroModeClose();
 510                 recordUndo(bv, Undo::ATOMIC);
 511                 mathcursor->selPaste(n);
 512                 break;
 513         }
 514
 515         case LFUN_CUT:
 516                 recordUndo(bv, Undo::DELETE);
 517                 mathcursor->selCut();
 518                 break;
 519
 520         case LFUN_COPY:
 521                 mathcursor->selCopy();
 522                 break;
 523
 524
 525         // Special casing for superscript in case of LyX handling
 526         // dead-keys:
 527         case LFUN_CIRCUMFLEX:
 528                 if (cmd.argument.empty()) {
 529                         // do superscript if LyX handles
 530                         // deadkeys
 531                         recordUndo(bv, Undo::ATOMIC);
 532                         mathcursor->script(true);
 533                 }
 534                 break;
 535
 536         case LFUN_UMLAUT:
 537         case LFUN_ACUTE:
 538         case LFUN_GRAVE:
 539         case LFUN_BREVE:
 540         case LFUN_DOT:
 541         case LFUN_MACRON:
 542         case LFUN_CARON:
 543         case LFUN_TILDE:
 544         case LFUN_CEDILLA:
 545         case LFUN_CIRCLE:
 546         case LFUN_UNDERDOT:
 547         case LFUN_TIE:
 548         case LFUN_OGONEK:
 549         case LFUN_HUNG_UMLAUT:
 550                 break;
 551
 552         //  Math fonts
 553         case LFUN_BOLD:         handleFont(bv, cmd.argument, "mathbf"); break;
 554         case LFUN_SANS:         handleFont(bv, cmd.argument, "mathsf"); break;
 555         case LFUN_EMPH:         handleFont(bv, cmd.argument, "mathcal"); break;
 556         case LFUN_ROMAN:        handleFont(bv, cmd.argument, "mathrm"); break;
 557         case LFUN_CODE:         handleFont(bv, cmd.argument, "texttt"); break;
 558         case LFUN_FRAK:         handleFont(bv, cmd.argument, "mathfrak"); break;
 559         case LFUN_ITAL:         handleFont(bv, cmd.argument, "mathit"); break;
 560         case LFUN_NOUN:         handleFont(bv, cmd.argument, "mathbb"); break;
 561         case LFUN_FREEFONT_APPLY:  handleFont(bv, cmd.argument, "textrm"); break;
 562         case LFUN_DEFAULT:      handleFont(bv, cmd.argument, "textnormal"); break;
 563
 564         case LFUN_MATH_MODE:
 565                 if (mathcursor->currentMode() == MathInset::TEXT_MODE)
 566                         mathcursor->niceInsert(MathAtom(new MathHullInset("simple")));
 567                 else
 568                         handleFont(bv, cmd.argument, "textrm");
 569                 //bv->owner()->message(_("math text mode toggled"));
 570                 break;
 571
 572         case LFUN_MATH_SIZE:
 573 #if 0
 574                 if (!arg.empty()) {
 575                         recordUndo(bv, Undo::ATOMIC);
 576                         mathcursor->setSize(arg);
 577                 }
 578 #endif
 579                 break;
 580
 581         case LFUN_INSERT_MATRIX: {
 582                 recordUndo(bv, Undo::ATOMIC);
 583                 unsigned int m = 1;
 584                 unsigned int n = 1;
 585                 string v_align;
 586                 string h_align;
 587                 istringstream is(STRCONV(argument));
 588                 is >> m >> n >> v_align >> h_align;
 589                 m = max(1u, m);
 590                 n = max(1u, n);
 591                 v_align += 'c';
 592                 mathcursor->niceInsert(
 593                         MathAtom(new MathArrayInset("array", m, n, v_align[0], h_align)));
 594                 break;
 595         }
 596
 597         case LFUN_SUPERSCRIPT:
 598         case LFUN_SUBSCRIPT:
 599         {
 600                 recordUndo(bv, Undo::ATOMIC);
 601                 mathcursor->script(cmd.action == LFUN_SUPERSCRIPT);
 602                 break;
 603         }
 604
 605         case LFUN_MATH_DELIM:
 606         {
 607                 //lyxerr << "formulabase::LFUN_MATH_DELIM, arg: '" << arg << "'" << endl;
 608                 string ls;
 609                 string rs = split(cmd.argument, ls, ' ');
 610                 // Reasonable default values
 611                 if (ls.empty())
 612                         ls = '(';
 613                 if (rs.empty())
 614                         rs = ')';
 615
 616                 recordUndo(bv, Undo::ATOMIC);
 617                 mathcursor->handleNest(MathAtom(new MathDelimInset(ls, rs)));
 618                 break;
 619         }
 620
 621         case LFUN_SPACE_INSERT:
 622         case LFUN_MATH_SPACE:
 623                 recordUndo(bv, Undo::ATOMIC);
 624                 mathcursor->insert(MathAtom(new MathSpaceInset(",")));
 625                 break;
 626
 627         case LFUN_UNDO:
 628                 bv->owner()->message(_("Invalid action in math mode!"));
 629                 break;
 630
 631
 632         case LFUN_EXEC_COMMAND:
 633                 result = UNDISPATCHED;
 634                 break;
 635
 636         case LFUN_INSET_ERT:
 637                 // interpret this as if a backslash was typed
 638                 recordUndo(bv, Undo::ATOMIC);
 639                 mathcursor->interpret('\\');
 640                 break;
 641
 642         case LFUN_BREAKPARAGRAPH:
 643         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
 644         case LFUN_BREAKPARAGRAPH_SKIP:
 645                 argument = "\n";
 646                 // fall through
 647
 648 // FIXME: We probably should swap parts of "math-insert" and "self-insert"
 649 // handling such that "self-insert" works on "arbitrary stuff" too, and
 650 // math-insert only handles special math things like "matrix".
 651         case LFUN_INSERT_MATH:
 652                 recordUndo(bv, Undo::ATOMIC);
 653                 mathcursor->niceInsert(argument);
 654                 break;
 655
 656         case -1:
 657         case LFUN_SELFINSERT:
 658                 if (!argument.empty()) {
 659                         recordUndo(bv, Undo::ATOMIC);
 660                         if (argument.size() == 1)
 661                                 result = mathcursor->interpret(argument[0]) ? DISPATCHED : FINISHED_RIGHT;
 662                         else
 663                                 mathcursor->insert(argument);
 664                 }
 665                 break;
 666
 667         case LFUN_ESCAPE:
 668                 if (mathcursor->selection())
 669                         mathcursor->selClear();
 670                 else
 671                         result = UNDISPATCHED;
 672                 break;
 673
 674         case LFUN_INSET_TOGGLE:
 675                 mathcursor->insetToggle();
 676                 break;
 677
 678         case LFUN_DIALOG_SHOW:
 679                 result = UNDISPATCHED;
 680                 break;
 681
 682         case LFUN_DIALOG_SHOW_NEW_INSET: {
 683                 string const & name = argument;
 684                 string data;
 685                 if (name == "ref") {
 686                         RefInset tmp(name);
 687                         data = tmp.createDialogStr(name);
 688                 }
 689
 690                 if (data.empty())
 691                         result = UNDISPATCHED;
 692                 else {
 693                         bv->owner()->getDialogs().show(name, data, 0);
 694                 }
 695         }
 696         break;
 697
 698         case LFUN_INSET_APPLY: {
 699                 string const name = cmd.getArg(0);
 700                 InsetBase * base =
 701                         bv->owner()->getDialogs().getOpenInset(name);
 702
 703                 if (base) {
 704                         FuncRequest fr(bv, LFUN_INSET_MODIFY, cmd.argument);
 705                         result = base->localDispatch(fr);
 706                 } else {
 707                         MathArray ar;
 708                         if (createMathInset_fromDialogStr(cmd.argument, ar)) {
 709                                 mathcursor->insert(ar);
 710                                 result = DISPATCHED;
 711                         } else {
 712                                 result = UNDISPATCHED;
 713                         }
 714                 }
 715         }
 716         break;
 717
 718         default:
 719                 result = UNDISPATCHED;
 720         }
 721
 722         if (result == DISPATCHED)
 723                 bv->updateInset(this);
 724
 725         mathcursor->normalize();
 726         mathcursor->touch();
 727
 728         Assert(mathcursor);
 729
 730         if (mathcursor->selection() || was_selection)
 731                 toggleInsetSelection(bv);
 732
 733         if (result == DISPATCHED || result == DISPATCHED_NOUPDATE ||
 734             result == UNDISPATCHED) {
 735                 fitInsetCursor(bv);
 736                 revealCodes(bv);
 737                 cmd.view()->stuffClipboard(mathcursor->grabSelection());
 738         } else {
 739                 releaseMathCursor(bv);
 740                 bv->unlockInset(this);
 741                 if (remove_inset)
 742                         bv->owner()->dispatch(FuncRequest(LFUN_DELETE));
 743         }
 744
 745         return result;  // original version
 746 }
 747
 748
 749 void InsetFormulaBase::revealCodes(BufferView * bv) const
 750 {
 751         if (!mathcursor)
 752                 return;
 753         bv->owner()->message(mathcursor->info());
 754
 755 #if 0
 756         // write something to the minibuffer
 757         // translate to latex
 758         mathcursor->markInsert();
 759         ostringstream os;
 760         write(NULL, os);
 761         string str = os.str();
 762         mathcursor->markErase();
 763         string::size_type pos = 0;
 764         string res;
 765         for (string::iterator it = str.begin(); it != str.end(); ++it) {
 766                 if (*it == '\n')
 767                         res += ' ';
 768                 else if (*it == '\0') {
 769                         res += "  -X-  ";
 770                         pos = it - str.begin();
 771                 }
 772                 else
 773                         res += *it;
 774         }
 775         if (pos > 30)
 776                 res = res.substr(pos - 30);
 777         if (res.size() > 60)
 778                 res = res.substr(0, 60);
 779         bv->owner()->message(res);
 780 #endif
 781 }
 782
 783
 784 InsetOld::Code InsetFormulaBase::lyxCode() const
 785 {
 786         return InsetOld::MATH_CODE;
 787 }
 788
 789
 790 int InsetFormulaBase::ylow() const
 791 {
 792         return yo_ - dim_.asc;
 793 }
 794
 795
 796 int InsetFormulaBase::yhigh() const
 797 {
 798         return yo_ + dim_.des;
 799 }
 800
 801
 802 int InsetFormulaBase::xlow() const
 803 {
 804         return xo_;
 805 }
 806
 807
 808 int InsetFormulaBase::xhigh() const
 809 {
 810         return xo_ + dim_.wid;
 811 }
 812
 813
 814 /////////////////////////////////////////////////////////////////////
 815
 816
 817 bool InsetFormulaBase::searchForward(BufferView * bv, string const & str,
 818                                      bool, bool)
 819 {
 820 #ifdef WITH_WARNINGS
 821 #warning pretty ugly
 822 #endif
 823         static InsetFormulaBase * lastformula = 0;
 824         static MathIterator current = MathIterator(ibegin(par().nucleus()));
 825         static MathArray ar;
 826         static string laststr;
 827
 828         if (lastformula != this || laststr != str) {
 829                 //lyxerr << "reset lastformula to " << this << endl;
 830                 lastformula = this;
 831                 laststr = str;
 832                 current = ibegin(par().nucleus());
 833                 ar.clear();
 834                 mathed_parse_cell(ar, str);
 835         } else {
 836                 ++current;
 837         }
 838         //lyxerr << "searching '" << str << "' in " << this << ar << endl;
 839
 840         for (MathIterator it = current; it != iend(par().nucleus()); ++it) {
 841                 if (it.cell().matchpart(ar, it.back().pos_)) {
 842                         bv->unlockInset(bv->theLockingInset());
 843                         if (!bv->lockInset(this)) {
 844                                 lyxerr << "Cannot lock inset" << endl;
 845                                 return false;
 846                         }
 847                         delete mathcursor;
 848                         mathcursor = new MathCursor(this, true);
 849                         //metrics(bv);
 850                         mathcursor->setSelection(it, ar.size());
 851                         current = it;
 852                         it.jump(ar.size());
 853                         bv->updateInset(this);
 854                         return true;
 855                 }
 856         }
 857
 858         //lyxerr << "not found!" << endl;
 859         lastformula = 0;
 860         return false;
 861 }
 862
 863
 864 bool InsetFormulaBase::searchBackward(BufferView * bv, string const & what,
 865                                       bool a, bool b)
 866 {
 867         lyxerr[Debug::MATHED] << "searching backward not implemented in mathed" << endl;
 868         return searchForward(bv, what, a, b);
 869 }
 870
 871
 872 bool InsetFormulaBase::display() const
 873 {
 874         return par()->asHullInset() && par()->asHullInset()->display();
 875 }
 876
 877
 878 string InsetFormulaBase::selectionAsString() const
 879 {
 880         return mathcursor ? mathcursor->grabSelection() : string();
 881 }
 882
 883 /////////////////////////////////////////////////////////////////////
 884
 885
 886 void mathDispatchCreation(FuncRequest const & cmd, bool display)
 887 {
 888         BufferView * bv = cmd.view();
 889         // use selection if available..
 890         //string sel;
 891         //if (action == LFUN_MATH_IMPORT_SELECTION)
 892         //      sel = "";
 893         //else
 894
 895         string sel = bv->getLyXText()->selectionAsString(*bv->buffer(), false);
 896
 897         if (sel.empty()) {
 898                 InsetFormula * f = new InsetFormula(bv);
 899                 if (openNewInset(bv, f)) {
 900                         bv->theLockingInset()->
 901                                 localDispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
 902                         // don't do that also for LFUN_MATH_MODE unless you want end up with
 903                         // always changing to mathrm when opening an inlined inset
 904                         // -- I really hate "LyXfunc overloading"...
 905                         if (display)
 906                                 f->localDispatch(FuncRequest(bv, LFUN_MATH_DISPLAY));
 907                         f->localDispatch(FuncRequest(bv, LFUN_INSERT_MATH, cmd.argument));
 908                 }
 909         } else {
 910                 // create a macro if we see "\\newcommand" somewhere, and an ordinary
 911                 // formula otherwise
 912                 InsetFormulaBase * f;
 913                 if (sel.find("\\newcommand") == string::npos &&
 914                                 sel.find("\\def") == string::npos)
 915                         f = new InsetFormula(sel);
 916                 else
 917                         f = new InsetFormulaMacro(sel);
 918                 bv->getLyXText()->cutSelection(true, false);
 919                 openNewInset(bv, f);
 920         }
 921         cmd.message(N_("Math editor mode"));
 922 }
 923
 924
 925 void mathDispatch(FuncRequest const & cmd)
 926 {
 927         BufferView * bv = cmd.view();
 928         if (!bv->available())
 929                 return;
 930
 931         switch (cmd.action) {
 932
 933                 case LFUN_MATH_DISPLAY:
 934                         mathDispatchCreation(cmd, true);
 935                         break;
 936
 937                 case LFUN_MATH_MODE:
 938                         mathDispatchCreation(cmd, false);
 939                         break;
 940
 941                 case LFUN_MATH_IMPORT_SELECTION:
 942                         mathDispatchCreation(cmd, false);
 943                         break;
 944
 945                 case LFUN_MATH_MACRO:
 946                         if (cmd.argument.empty())
 947                                 cmd.errorMessage(N_("Missing argument"));
 948                         else {
 949                                 string s = cmd.argument;
 950                                 string const s1 = token(s, ' ', 1);
 951                                 int const nargs = s1.empty() ? 0 : atoi(s1);
 952                                 string const s2 = token(s, ' ', 2);
 953                                 string const type = s2.empty() ? "newcommand" : s2;
 954                                 openNewInset(bv, new InsetFormulaMacro(token(s, ' ', 0), nargs, s2));
 955                         }
 956                         break;
 957
 958                 case LFUN_INSERT_MATH:
 959                 case LFUN_INSERT_MATRIX:
 960                 case LFUN_MATH_DELIM: {
 961                         InsetFormula * f = new InsetFormula(bv);
 962                         if (openNewInset(bv, f)) {
 963                                 bv->theLockingInset()->
 964                                         localDispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
 965                                 bv->theLockingInset()->localDispatch(cmd);
 966                         }
 967                         break;
 968                 }
 969
 970                 default:
 971                         break;
 972         }
 973 }