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
  17 #include "Lsstream.h"
  18 #include "support/LAssert.h"
  19 #include "formula.h"
  20 #include "formulamacro.h"
  21 #include "lyxrc.h"
  22 #include "funcrequest.h"
  23 #include "BufferView.h"
  24 #include "lyxtext.h"
  25 #include "gettext.h"
  26 #include "LaTeXFeatures.h"
  27 #include "debug.h"
  28 #include "math_support.h"
  29 #include "metricsinfo.h"
  30 #include "math_data.h"
  31 #include "support/lstrings.h"
  32 #include "support/lyxlib.h"
  33 #include "frontends/LyXView.h"
  34 #include "frontends/font_metrics.h"
  35 #include "frontends/mouse_state.h"
  36 #include "math_arrayinset.h"
  37 #include "math_charinset.h"
  38 #include "math_deliminset.h"
  39 #include "math_cursor.h"
  40 #include "math_factory.h"
  41 #include "math_fontinset.h"
  42 #include "math_hullinset.h"
  43 #include "math_iterator.h"
  44 #include "math_macrotable.h"
  45 #include "math_parser.h"
  46 #include "math_pos.h"
  47 #include "math_spaceinset.h"
  48 #include "undo_funcs.h"
  49 #include "textpainter.h"
  50 #include "frontends/Dialogs.h"
  51 #include "intl.h"
  52 #include "ref_inset.h"
  53
  54 #include <fstream>
  55
  56 using namespace lyx::support;
  57
  58 using std::endl;
  59 using std::ostream;
  60 using std::vector;
  61 using std::abs;
  62 using std::max;
  63
  64
  65 MathCursor * mathcursor = 0;
  66
  67 namespace {
  68
  69 // local global
  70 int first_x;
  71 int first_y;
  72
  73 bool openNewInset(BufferView * bv, UpdatableInset * new_inset)
  74 {
  75         if (!bv->insertInset(new_inset)) {
  76                 delete new_inset;
  77                 return false;
  78         }
  79         new_inset->localDispatch(FuncRequest(bv, LFUN_INSET_EDIT, "left"));
  80         return true;
  81 }
  82
  83
  84 } // namespace anon
  85
  86
  87
  88 InsetFormulaBase::InsetFormulaBase()
  89         : xo_(0), yo_(0)
  90 {
  91         // This is needed as long the math parser is not re-entrant
  92         initMath();
  93         //lyxerr << "sizeof MathInset: " << sizeof(MathInset) << endl;
  94         //lyxerr << "sizeof MetricsInfo: " << sizeof(MetricsInfo) << endl;
  95         //lyxerr << "sizeof MathCharInset: " << sizeof(MathCharInset) << endl;
  96         //lyxerr << "sizeof LyXFont: " << sizeof(LyXFont) << endl;
  97 }
  98
  99
 100 // simply scrap this function if you want
 101 void InsetFormulaBase::mutateToText()
 102 {
 103 #if 0
 104         // translate to latex
 105         ostringstream os;
 106         latex(NULL, os, false, false);
 107         string str = os.str();
 108
 109         // insert this text
 110         LyXText * lt = view_->getLyXText();
 111         string::const_iterator cit = str.begin();
 112         string::const_iterator end = str.end();
 113         for (; cit != end; ++cit)
 114                 view_->owner()->getIntl()->getTransManager().TranslateAndInsert(*cit, lt);
 115
 116         // remove ourselves
 117         //view_->owner()->dispatch(LFUN_ESCAPE);
 118 #endif
 119 }
 120
 121
 122 void InsetFormulaBase::handleFont
 123         (BufferView * bv, string const & arg, string const & font)
 124 {
 125         // this whole function is a hack and won't work for incremental font
 126         // changes...
 127         recordUndo(bv, Undo::ATOMIC);
 128
 129         if (mathcursor->inset()->name() == font)
 130                 mathcursor->handleFont(font);
 131         else {
 132                 mathcursor->handleNest(createMathInset(font));
 133                 mathcursor->insert(arg);
 134         }
 135 }
 136
 137
 138 BufferView * InsetFormulaBase::view() const
 139 {
 140         return view_;
 141 }
 142
 143
 144 void InsetFormulaBase::validate(LaTeXFeatures &) const
 145 {}
 146
 147
 148 string const InsetFormulaBase::editMessage() const
 149 {
 150         return _("Math editor mode");
 151 }
 152
 153
 154 void InsetFormulaBase::insetUnlock(BufferView * bv)
 155 {
 156         if (mathcursor) {
 157                 if (mathcursor->inMacroMode()) {
 158                         mathcursor->macroModeClose();
 159                         bv->updateInset(this);
 160                 }
 161                 releaseMathCursor(bv);
 162         }
 163         generatePreview();
 164         bv->updateInset(this);
 165 }
 166
 167
 168 void InsetFormulaBase::getCursor(BufferView &, int & x, int & y) const
 169 {
 170         mathcursor->getPos(x, y);
 171 }
 172
 173
 174 void InsetFormulaBase::getCursorPos(BufferView *, int & x, int & y) const
 175 {
 176         // calling metrics here destroys the cached xo,yo positions e.g. in
 177         // MathParboxinset. And it would be too expensive anyway...
 178         //metrics(bv);
 179         if (!mathcursor) {
 180                 lyxerr << "getCursorPos - should not happen";
 181                 x = y = 0;
 182                 return;
 183         }
 184         mathcursor->getPos(x, y);
 185         x = mathcursor->targetX();
 186         x -= xo_;
 187         y -= yo_;
 188         //lyxerr << "getCursorPos: " << x << ' ' << y << endl;
 189 }
 190
 191
 192 void InsetFormulaBase::fitInsetCursor(BufferView * bv) const
 193 {
 194         if (!mathcursor)
 195                 return;
 196         int x, y, asc, des;
 197         asc = 10;
 198         des = 2;
 199         //math_font_max_dim(font_, asc, des);
 200         getCursorPos(bv, x, y);
 201         //y += yo_;
 202         //lyxerr << "fitInsetCursor: x: " << x << " y: " << y << " yo: " << yo_ << endl;
 203         bv->fitLockedInsetCursor(x, y, asc, des);
 204 }
 205
 206
 207 void InsetFormulaBase::toggleInsetSelection(BufferView * bv)
 208 {
 209         if (mathcursor)
 210                 bv->updateInset(this);
 211 }
 212
 213
 214 dispatch_result InsetFormulaBase::lfunMouseRelease(FuncRequest const & cmd)
 215 {
 216         if (!mathcursor)
 217                 return UNDISPATCHED;
 218
 219         BufferView * bv = cmd.view();
 220         bv->updateInset(this);
 221         //lyxerr << "lfunMouseRelease: buttons: " << cmd.button() << endl;
 222
 223         if (cmd.button() == mouse_button::button3) {
 224                 // try to dispatch to enclosed insets first
 225                 if (mathcursor->dispatch(cmd) == UNDISPATCHED) {
 226                         // launch math panel for right mouse button
 227                         lyxerr << "lfunMouseRelease: undispatched: " << cmd.button() << endl;
 228                         bv->owner()->getDialogs().show("mathpanel");
 229                 }
 230                 return DISPATCHED;
 231         }
 232
 233         if (cmd.button() == mouse_button::button2) {
 234                 MathArray ar;
 235                 asArray(bv->getClipboard(), ar);
 236                 mathcursor->selClear();
 237                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 238                 mathcursor->insert(ar);
 239                 bv->updateInset(this);
 240                 return DISPATCHED;
 241         }
 242
 243         if (cmd.button() == mouse_button::button1) {
 244                 // try to dispatch to enclosed insets first
 245                 mathcursor->dispatch(cmd);
 246                 cmd.view()->stuffClipboard(mathcursor->grabSelection());
 247                 // try to set the cursor
 248                 //delete mathcursor;
 249                 //mathcursor = new MathCursor(this, x == 0);
 250                 //metrics(bv);
 251                 //mathcursor->setPos(x + xo_, y + yo_);
 252                 return DISPATCHED;
 253         }
 254
 255         return UNDISPATCHED;
 256 }
 257
 258
 259 dispatch_result InsetFormulaBase::lfunMousePress(FuncRequest const & cmd)
 260 {
 261         BufferView * bv = cmd.view();
 262         //lyxerr << "lfunMousePress: buttons: " << cmd.button() << endl;
 263
 264         if (!mathcursor || mathcursor->formula() != this) {
 265                 lyxerr[Debug::MATHED] << "re-create cursor" << endl;
 266                 releaseMathCursor(bv);
 267                 mathcursor = new MathCursor(this, cmd.x == 0);
 268                 //metrics(bv);
 269                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 270         }
 271
 272         if (cmd.button() == mouse_button::button3) {
 273                 mathcursor->dispatch(cmd);
 274                 return DISPATCHED;
 275         }
 276
 277         if (cmd.button() == mouse_button::button1) {
 278                 first_x = cmd.x;
 279                 first_y = cmd.y;
 280                 mathcursor->selClear();
 281                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 282                 mathcursor->dispatch(cmd);
 283                 return DISPATCHED;
 284         }
 285
 286         bv->updateInset(this);
 287         return DISPATCHED;
 288 }
 289
 290
 291 dispatch_result InsetFormulaBase::lfunMouseMotion(FuncRequest const & cmd)
 292 {
 293         if (!mathcursor)
 294                 return DISPATCHED;
 295
 296         if (mathcursor->dispatch(FuncRequest(cmd)) != UNDISPATCHED)
 297                 return DISPATCHED;
 298
 299         // only select with button 1
 300         if (cmd.button() != mouse_button::button1)
 301                 return DISPATCHED;
 302
 303         if (abs(cmd.x - first_x) < 2 && abs(cmd.y - first_y) < 2)
 304                 return DISPATCHED;
 305
 306         first_x = cmd.x;
 307         first_y = cmd.y;
 308
 309         if (!mathcursor->selection())
 310                 mathcursor->selStart();
 311
 312         BufferView * bv = cmd.view();
 313         mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 314         bv->updateInset(this);
 315         return DISPATCHED;
 316 }
 317
 318
 319 dispatch_result InsetFormulaBase::localDispatch(FuncRequest const & cmd)
 320 {
 321         //lyxerr << "InsetFormulaBase::localDispatch: act: " << cmd.action
 322         //      << " arg: '" << cmd.argument
 323         //      << " x: '" << cmd.x
 324         //      << " y: '" << cmd.y
 325         //      << "' button: " << cmd.button() << endl;
 326
 327         BufferView * bv = cmd.view();
 328
 329         // delete empty mathbox (LFUN_BACKSPACE and LFUN_DELETE)
 330         bool remove_inset = false;
 331
 332         switch (cmd.action) {
 333                 case LFUN_INSET_EDIT:
 334                         lyxerr << "Called EDIT with '" << cmd.argument << "'" << endl;
 335                         if (!bv->lockInset(this))
 336                                 lyxerr << "Cannot lock math inset in edit call!" << endl;
 337                         releaseMathCursor(bv);
 338                         if (!cmd.argument.empty()) {
 339                                 mathcursor = new MathCursor(this, cmd.argument == "left");
 340                                 //metrics(bv);
 341                         } else {
 342                                 mathcursor = new MathCursor(this, true);
 343                                 //metrics(bv);
 344                                 mathcursor->setPos(cmd.x + xo_, cmd.y + yo_);
 345                         }
 346                         // if that is removed, we won't get the magenta box when entering an
 347                         // inset for the first time
 348                         bv->updateInset(this);
 349                         return DISPATCHED;
 350
 351                 case LFUN_MOUSE_PRESS:
 352                         //lyxerr << "Mouse single press" << endl;
 353                         return lfunMousePress(cmd);
 354                 case LFUN_MOUSE_MOTION:
 355                         //lyxerr << "Mouse motion" << endl;
 356                         return lfunMouseMotion(cmd);
 357                 case LFUN_MOUSE_RELEASE:
 358                         //lyxerr << "Mouse single release" << endl;
 359                         return lfunMouseRelease(cmd);
 360                 case LFUN_MOUSE_DOUBLE:
 361                         //lyxerr << "Mouse double" << endl;
 362                         return localDispatch(FuncRequest(LFUN_WORDSEL));
 363                 default:
 364                         break;
 365         }
 366
 367         if (!mathcursor)
 368                 return UNDISPATCHED;
 369
 370         string argument    = cmd.argument;
 371         RESULT result      = DISPATCHED;
 372         bool sel           = false;
 373         bool was_macro     = mathcursor->inMacroMode();
 374         bool was_selection = mathcursor->selection();
 375
 376         mathcursor->normalize();
 377         mathcursor->touch();
 378
 379         switch (cmd.action) {
 380
 381         case LFUN_MATH_MUTATE:
 382         case LFUN_MATH_DISPLAY:
 383         case LFUN_MATH_NUMBER:
 384         case LFUN_MATH_NONUMBER:
 385         case LFUN_CELL_SPLIT:
 386         case LFUN_BREAKLINE:
 387         case LFUN_DELETE_LINE_FORWARD:
 388         case LFUN_INSERT_LABEL:
 389         case LFUN_MATH_EXTERN:
 390         case LFUN_TABULAR_FEATURE:
 391         case LFUN_PASTESELECTION:
 392         case LFUN_MATH_LIMITS:
 393                 recordUndo(bv, Undo::ATOMIC);
 394                 mathcursor->dispatch(cmd);
 395                 break;
 396
 397         case LFUN_RIGHTSEL:
 398                 sel = true; // fall through...
 399         case LFUN_RIGHT:
 400                 result = mathcursor->right(sel) ? DISPATCHED : FINISHED_RIGHT;
 401                 //lyxerr << "calling scroll 20" << endl;
 402                 //scroll(bv, 20);
 403                 // write something to the minibuffer
 404                 //bv->owner()->message(mathcursor->info());
 405                 break;
 406
 407         case LFUN_LEFTSEL:
 408                 sel = true; // fall through
 409         case LFUN_LEFT:
 410                 result = mathcursor->left(sel) ? DISPATCHED : FINISHED;
 411                 break;
 412
 413         case LFUN_UPSEL:
 414                 sel = true; // fall through
 415         case LFUN_UP:
 416                 result = mathcursor->up(sel) ? DISPATCHED : FINISHED_UP;
 417                 break;
 418
 419         case LFUN_DOWNSEL:
 420                 sel = true; // fall through
 421         case LFUN_DOWN:
 422                 result = mathcursor->down(sel) ? DISPATCHED : FINISHED_DOWN;
 423                 break;
 424
 425         case LFUN_WORDSEL:
 426                 mathcursor->home(false);
 427                 mathcursor->end(true);
 428                 break;
 429
 430         case LFUN_UP_PARAGRAPHSEL:
 431         case LFUN_UP_PARAGRAPH:
 432         case LFUN_DOWN_PARAGRAPHSEL:
 433         case LFUN_DOWN_PARAGRAPH:
 434                 result = FINISHED;
 435                 break;
 436
 437         case LFUN_HOMESEL:
 438         case LFUN_WORDLEFTSEL:
 439                 sel = true; // fall through
 440         case LFUN_HOME:
 441         case LFUN_WORDLEFT:
 442                 result = mathcursor->home(sel) ? DISPATCHED : FINISHED;
 443                 break;
 444
 445         case LFUN_ENDSEL:
 446         case LFUN_WORDRIGHTSEL:
 447                 sel = true; // fall through
 448         case LFUN_END:
 449         case LFUN_WORDRIGHT:
 450                 result = mathcursor->end(sel) ? DISPATCHED : FINISHED_RIGHT;
 451                 break;
 452
 453         case LFUN_PRIORSEL:
 454         case LFUN_PRIOR:
 455         case LFUN_BEGINNINGBUFSEL:
 456         case LFUN_BEGINNINGBUF:
 457                 result = FINISHED;
 458                 break;
 459
 460         case LFUN_NEXTSEL:
 461         case LFUN_NEXT:
 462         case LFUN_ENDBUFSEL:
 463         case LFUN_ENDBUF:
 464                 result = FINISHED_RIGHT;
 465                 break;
 466
 467         case LFUN_CELL_FORWARD:
 468                 mathcursor->idxNext();
 469                 break;
 470
 471         case LFUN_CELL_BACKWARD:
 472                 mathcursor->idxPrev();
 473                 break;
 474
 475         case LFUN_DELETE_WORD_BACKWARD:
 476         case LFUN_BACKSPACE:
 477                 recordUndo(bv, Undo::ATOMIC);
 478                 if (!mathcursor->backspace()) {
 479                         result = FINISHED;
 480                         remove_inset = true;
 481                 }
 482                 break;
 483
 484         case LFUN_DELETE_WORD_FORWARD:
 485         case LFUN_DELETE:
 486                 recordUndo(bv, Undo::ATOMIC);
 487                 if (!mathcursor->erase()) {
 488                         result = FINISHED;
 489                         remove_inset = true;
 490                 }
 491                 break;
 492
 493         //    case LFUN_GETXY:
 494         //      sprintf(dispatch_buffer, "%d %d",);
 495         //      dispatch_result = dispatch_buffer;
 496         //      break;
 497         case LFUN_SETXY: {
 498                 lyxerr << "LFUN_SETXY broken!" << endl;
 499                 int x = 0;
 500                 int y = 0;
 501                 istringstream is(cmd.argument.c_str());
 502                 is >> x >> y;
 503                 mathcursor->setPos(x, y);
 504                 break;
 505         }
 506
 507         case LFUN_PASTE: {
 508                 size_t n = 0;
 509                 istringstream is(cmd.argument.c_str());
 510                 is >> n;
 511                 if (was_macro)
 512                         mathcursor->macroModeClose();
 513                 recordUndo(bv, Undo::ATOMIC);
 514                 mathcursor->selPaste(n);
 515                 break;
 516         }
 517
 518         case LFUN_CUT:
 519                 recordUndo(bv, Undo::DELETE);
 520                 mathcursor->selCut();
 521                 break;
 522
 523         case LFUN_COPY:
 524                 mathcursor->selCopy();
 525                 break;
 526
 527
 528         // Special casing for superscript in case of LyX handling
 529         // dead-keys:
 530         case LFUN_CIRCUMFLEX:
 531                 if (cmd.argument.empty()) {
 532                         // do superscript if LyX handles
 533                         // deadkeys
 534                         recordUndo(bv, Undo::ATOMIC);
 535                         mathcursor->script(true);
 536                 }
 537                 break;
 538
 539         case LFUN_UMLAUT:
 540         case LFUN_ACUTE:
 541         case LFUN_GRAVE:
 542         case LFUN_BREVE:
 543         case LFUN_DOT:
 544         case LFUN_MACRON:
 545         case LFUN_CARON:
 546         case LFUN_TILDE:
 547         case LFUN_CEDILLA:
 548         case LFUN_CIRCLE:
 549         case LFUN_UNDERDOT:
 550         case LFUN_TIE:
 551         case LFUN_OGONEK:
 552         case LFUN_HUNG_UMLAUT:
 553                 break;
 554
 555         //  Math fonts
 556         case LFUN_BOLD:         handleFont(bv, cmd.argument, "mathbf"); break;
 557         case LFUN_SANS:         handleFont(bv, cmd.argument, "mathsf"); break;
 558         case LFUN_EMPH:         handleFont(bv, cmd.argument, "mathcal"); break;
 559         case LFUN_ROMAN:        handleFont(bv, cmd.argument, "mathrm"); break;
 560         case LFUN_CODE:         handleFont(bv, cmd.argument, "texttt"); break;
 561         case LFUN_FRAK:         handleFont(bv, cmd.argument, "mathfrak"); break;
 562         case LFUN_ITAL:         handleFont(bv, cmd.argument, "mathit"); break;
 563         case LFUN_NOUN:         handleFont(bv, cmd.argument, "mathbb"); break;
 564         case LFUN_FREEFONT_APPLY:  handleFont(bv, cmd.argument, "textrm"); break;
 565         case LFUN_DEFAULT:      handleFont(bv, cmd.argument, "textnormal"); break;
 566
 567         case LFUN_MATH_MODE:
 568                 if (mathcursor->currentMode() == MathInset::TEXT_MODE)
 569                         mathcursor->niceInsert(MathAtom(new MathHullInset("simple")));
 570                 else
 571                         handleFont(bv, cmd.argument, "textrm");
 572                 //bv->owner()->message(_("math text mode toggled"));
 573                 break;
 574
 575         case LFUN_MATH_SIZE:
 576 #if 0
 577                 if (!arg.empty()) {
 578                         recordUndo(bv, Undo::ATOMIC);
 579                         mathcursor->setSize(arg);
 580                 }
 581 #endif
 582                 break;
 583
 584         case LFUN_INSERT_MATRIX: {
 585                 recordUndo(bv, Undo::ATOMIC);
 586                 unsigned int m = 1;
 587                 unsigned int n = 1;
 588                 string v_align;
 589                 string h_align;
 590                 istringstream is(STRCONV(argument));
 591                 is >> m >> n >> v_align >> h_align;
 592                 m = max(1u, m);
 593                 n = max(1u, n);
 594                 v_align += 'c';
 595                 mathcursor->niceInsert(
 596                         MathAtom(new MathArrayInset("array", m, n, v_align[0], h_align)));
 597                 break;
 598         }
 599
 600         case LFUN_SUPERSCRIPT:
 601         case LFUN_SUBSCRIPT:
 602         {
 603                 recordUndo(bv, Undo::ATOMIC);
 604                 mathcursor->script(cmd.action == LFUN_SUPERSCRIPT);
 605                 break;
 606         }
 607
 608         case LFUN_MATH_DELIM:
 609         {
 610                 //lyxerr << "formulabase::LFUN_MATH_DELIM, arg: '" << arg << "'" << endl;
 611                 string ls;
 612                 string rs = split(cmd.argument, ls, ' ');
 613                 // Reasonable default values
 614                 if (ls.empty())
 615                         ls = '(';
 616                 if (rs.empty())
 617                         rs = ')';
 618
 619                 recordUndo(bv, Undo::ATOMIC);
 620                 mathcursor->handleNest(MathAtom(new MathDelimInset(ls, rs)));
 621                 break;
 622         }
 623
 624         case LFUN_SPACE_INSERT:
 625         case LFUN_MATH_SPACE:
 626                 recordUndo(bv, Undo::ATOMIC);
 627                 mathcursor->insert(MathAtom(new MathSpaceInset(",")));
 628                 break;
 629
 630         case LFUN_UNDO:
 631                 bv->owner()->message(_("Invalid action in math mode!"));
 632                 break;
 633
 634
 635         case LFUN_EXEC_COMMAND:
 636                 result = UNDISPATCHED;
 637                 break;
 638
 639         case LFUN_INSET_ERT:
 640                 // interpret this as if a backslash was typed
 641                 recordUndo(bv, Undo::ATOMIC);
 642                 mathcursor->interpret('\\');
 643                 break;
 644
 645         case LFUN_BREAKPARAGRAPH:
 646         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
 647         case LFUN_BREAKPARAGRAPH_SKIP:
 648                 argument = "\n";
 649                 // fall through
 650
 651 // FIXME: We probably should swap parts of "math-insert" and "self-insert"
 652 // handling such that "self-insert" works on "arbitrary stuff" too, and
 653 // math-insert only handles special math things like "matrix".
 654         case LFUN_INSERT_MATH:
 655                 recordUndo(bv, Undo::ATOMIC);
 656                 mathcursor->niceInsert(argument);
 657                 break;
 658
 659         case -1:
 660         case LFUN_SELFINSERT:
 661                 if (!argument.empty()) {
 662                         recordUndo(bv, Undo::ATOMIC);
 663                         if (argument.size() == 1)
 664                                 result = mathcursor->interpret(argument[0]) ? DISPATCHED : FINISHED_RIGHT;
 665                         else
 666                                 mathcursor->insert(argument);
 667                 }
 668                 break;
 669
 670         case LFUN_ESCAPE:
 671                 if (mathcursor->selection())
 672                         mathcursor->selClear();
 673                 else
 674                         result = UNDISPATCHED;
 675                 break;
 676
 677         case LFUN_INSET_TOGGLE:
 678                 mathcursor->insetToggle();
 679                 break;
 680
 681         case LFUN_DIALOG_SHOW:
 682                 result = UNDISPATCHED;
 683                 break;
 684
 685         case LFUN_DIALOG_SHOW_NEW_INSET: {
 686                 string const & name = argument;
 687                 string data;
 688                 if (name == "ref") {
 689                         RefInset tmp(name);
 690                         data = tmp.createDialogStr(name);
 691                 }
 692
 693                 if (data.empty())
 694                         result = UNDISPATCHED;
 695                 else {
 696                         bv->owner()->getDialogs().show(name, data, 0);
 697                 }
 698         }
 699         break;
 700
 701         case LFUN_INSET_APPLY: {
 702                 string const name = cmd.getArg(0);
 703                 InsetBase * base =
 704                         bv->owner()->getDialogs().getOpenInset(name);
 705
 706                 if (base) {
 707                         FuncRequest fr(bv, LFUN_INSET_MODIFY, cmd.argument);
 708                         result = base->localDispatch(fr);
 709                 } else {
 710                         MathArray ar;
 711                         if (createMathInset_fromDialogStr(cmd.argument, ar)) {
 712                                 mathcursor->insert(ar);
 713                                 result = DISPATCHED;
 714                         } else {
 715                                 result = UNDISPATCHED;
 716                         }
 717                 }
 718         }
 719         break;
 720
 721         default:
 722                 result = UNDISPATCHED;
 723         }
 724
 725         if (result == DISPATCHED)
 726                 bv->updateInset(this);
 727
 728         mathcursor->normalize();
 729         mathcursor->touch();
 730
 731         Assert(mathcursor);
 732
 733         if (mathcursor->selection() || was_selection)
 734                 toggleInsetSelection(bv);
 735
 736         if (result == DISPATCHED || result == DISPATCHED_NOUPDATE ||
 737             result == UNDISPATCHED) {
 738                 fitInsetCursor(bv);
 739                 revealCodes(bv);
 740                 cmd.view()->stuffClipboard(mathcursor->grabSelection());
 741         } else {
 742                 releaseMathCursor(bv);
 743                 bv->unlockInset(this);
 744                 if (remove_inset)
 745                         bv->owner()->dispatch(FuncRequest(LFUN_DELETE));
 746         }
 747
 748         return result;  // original version
 749 }
 750
 751
 752 void InsetFormulaBase::revealCodes(BufferView * bv) const
 753 {
 754         if (!mathcursor)
 755                 return;
 756         bv->owner()->message(mathcursor->info());
 757
 758 #if 0
 759         // write something to the minibuffer
 760         // translate to latex
 761         mathcursor->markInsert();
 762         ostringstream os;
 763         write(NULL, os);
 764         string str = os.str();
 765         mathcursor->markErase();
 766         string::size_type pos = 0;
 767         string res;
 768         for (string::iterator it = str.begin(); it != str.end(); ++it) {
 769                 if (*it == '\n')
 770                         res += ' ';
 771                 else if (*it == '\0') {
 772                         res += "  -X-  ";
 773                         pos = it - str.begin();
 774                 }
 775                 else
 776                         res += *it;
 777         }
 778         if (pos > 30)
 779                 res = res.substr(pos - 30);
 780         if (res.size() > 60)
 781                 res = res.substr(0, 60);
 782         bv->owner()->message(res);
 783 #endif
 784 }
 785
 786
 787 InsetOld::Code InsetFormulaBase::lyxCode() const
 788 {
 789         return InsetOld::MATH_CODE;
 790 }
 791
 792
 793 int InsetFormulaBase::ylow() const
 794 {
 795         return yo_ - dim_.asc;
 796 }
 797
 798
 799 int InsetFormulaBase::yhigh() const
 800 {
 801         return yo_ + dim_.des;
 802 }
 803
 804
 805 int InsetFormulaBase::xlow() const
 806 {
 807         return xo_;
 808 }
 809
 810
 811 int InsetFormulaBase::xhigh() const
 812 {
 813         return xo_ + dim_.wid;
 814 }
 815
 816
 817 /////////////////////////////////////////////////////////////////////
 818
 819
 820 bool InsetFormulaBase::searchForward(BufferView * bv, string const & str,
 821                                      bool, bool)
 822 {
 823 #ifdef WITH_WARNINGS
 824 #warning pretty ugly
 825 #endif
 826         static InsetFormulaBase * lastformula = 0;
 827         static MathIterator current = MathIterator(ibegin(par().nucleus()));
 828         static MathArray ar;
 829         static string laststr;
 830
 831         if (lastformula != this || laststr != str) {
 832                 //lyxerr << "reset lastformula to " << this << endl;
 833                 lastformula = this;
 834                 laststr = str;
 835                 current = ibegin(par().nucleus());
 836                 ar.clear();
 837                 mathed_parse_cell(ar, str);
 838         } else {
 839                 ++current;
 840         }
 841         //lyxerr << "searching '" << str << "' in " << this << ar << endl;
 842
 843         for (MathIterator it = current; it != iend(par().nucleus()); ++it) {
 844                 if (it.cell().matchpart(ar, it.back().pos_)) {
 845                         bv->unlockInset(bv->theLockingInset());
 846                         if (!bv->lockInset(this)) {
 847                                 lyxerr << "Cannot lock inset" << endl;
 848                                 return false;
 849                         }
 850                         delete mathcursor;
 851                         mathcursor = new MathCursor(this, true);
 852                         //metrics(bv);
 853                         mathcursor->setSelection(it, ar.size());
 854                         current = it;
 855                         it.jump(ar.size());
 856                         bv->updateInset(this);
 857                         return true;
 858                 }
 859         }
 860
 861         //lyxerr << "not found!" << endl;
 862         lastformula = 0;
 863         return false;
 864 }
 865
 866
 867 bool InsetFormulaBase::searchBackward(BufferView * bv, string const & what,
 868                                       bool a, bool b)
 869 {
 870         lyxerr[Debug::MATHED] << "searching backward not implemented in mathed" << endl;
 871         return searchForward(bv, what, a, b);
 872 }
 873
 874
 875 bool InsetFormulaBase::display() const
 876 {
 877         return par()->asHullInset() && par()->asHullInset()->display();
 878 }
 879
 880
 881 string InsetFormulaBase::selectionAsString() const
 882 {
 883         return mathcursor ? mathcursor->grabSelection() : string();
 884 }
 885
 886 /////////////////////////////////////////////////////////////////////
 887
 888
 889 void mathDispatchCreation(FuncRequest const & cmd, bool display)
 890 {
 891         BufferView * bv = cmd.view();
 892         // use selection if available..
 893         //string sel;
 894         //if (action == LFUN_MATH_IMPORT_SELECTION)
 895         //      sel = "";
 896         //else
 897
 898         string sel = bv->getLyXText()->selectionAsString(bv->buffer(), false);
 899
 900         if (sel.empty()) {
 901                 InsetFormula * f = new InsetFormula(bv);
 902                 if (openNewInset(bv, f)) {
 903                         bv->theLockingInset()->
 904                                 localDispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
 905                         // don't do that also for LFUN_MATH_MODE unless you want end up with
 906                         // always changing to mathrm when opening an inlined inset
 907                         // -- I really hate "LyXfunc overloading"...
 908                         if (display)
 909                                 f->localDispatch(FuncRequest(bv, LFUN_MATH_DISPLAY));
 910                         f->localDispatch(FuncRequest(bv, LFUN_INSERT_MATH, cmd.argument));
 911                 }
 912         } else {
 913                 // create a macro if we see "\\newcommand" somewhere, and an ordinary
 914                 // formula otherwise
 915                 InsetFormulaBase * f;
 916                 if (sel.find("\\newcommand") == string::npos &&
 917                                 sel.find("\\def") == string::npos)
 918                         f = new InsetFormula(sel);
 919                 else
 920                         f = new InsetFormulaMacro(sel);
 921                 bv->getLyXText()->cutSelection(true, false);
 922                 openNewInset(bv, f);
 923         }
 924         cmd.message(N_("Math editor mode"));
 925 }
 926
 927
 928 void mathDispatch(FuncRequest const & cmd)
 929 {
 930         BufferView * bv = cmd.view();
 931         if (!bv->available())
 932                 return;
 933
 934         switch (cmd.action) {
 935
 936                 case LFUN_MATH_DISPLAY:
 937                         mathDispatchCreation(cmd, true);
 938                         break;
 939
 940                 case LFUN_MATH_MODE:
 941                         mathDispatchCreation(cmd, false);
 942                         break;
 943
 944                 case LFUN_MATH_IMPORT_SELECTION:
 945                         mathDispatchCreation(cmd, false);
 946                         break;
 947
 948                 case LFUN_MATH_MACRO:
 949                         if (cmd.argument.empty())
 950                                 cmd.errorMessage(N_("Missing argument"));
 951                         else {
 952                                 string s = cmd.argument;
 953                                 string const s1 = token(s, ' ', 1);
 954                                 int const nargs = s1.empty() ? 0 : atoi(s1);
 955                                 string const s2 = token(s, ' ', 2);
 956                                 string const type = s2.empty() ? "newcommand" : s2;
 957                                 openNewInset(bv, new InsetFormulaMacro(token(s, ' ', 0), nargs, s2));
 958                         }
 959                         break;
 960
 961                 case LFUN_INSERT_MATH:
 962                 case LFUN_INSERT_MATRIX:
 963                 case LFUN_MATH_DELIM: {
 964                         InsetFormula * f = new InsetFormula(bv);
 965                         if (openNewInset(bv, f)) {
 966                                 bv->theLockingInset()->
 967                                         localDispatch(FuncRequest(bv, LFUN_MATH_MUTATE, "simple"));
 968                                 bv->theLockingInset()->localDispatch(cmd);
 969                         }
 970                         break;
 971                 }
 972
 973                 default:
 974                         break;
 975         }
 976 }