src/paragraph_pimpl.C

   1 /* This file is part of
   2  * ======================================================
   3  *
   4  *           LyX, The Document Processor
   5  *
   6  *           Copyright 1995 Matthias Ettrich
   7  *           Copyright 1995-2001 The LyX Team.
   8  *
   9  * ====================================================== */
  10
  11 #include <config.h>
  12
  13 #ifdef __GNUG__
  14 #pragma implementation
  15 #endif
  16
  17 #include "paragraph_pimpl.h"
  18 #include "LaTeXFeatures.h"
  19 #include "texrow.h"
  20 #include "language.h"
  21 #include "bufferparams.h"
  22 #include "encoding.h"
  23 #include "lyxrc.h"
  24 #include "debug.h"
  25
  26 #include "support/LAssert.h"
  27
  28 using lyx::pos_type;
  29 using std::endl;
  30 using std::ostream;
  31 using std::upper_bound;
  32 using std::lower_bound;
  33
  34 // Initialize static member.
  35 ShareContainer<LyXFont> Paragraph::Pimpl::FontTable::container;
  36 // Initialization of the counter for the paragraph id's,
  37 unsigned int Paragraph::Pimpl::paragraph_id = 0;
  38
  39 namespace {
  40
  41 struct special_phrase {
  42         string phrase;
  43         string macro;
  44         bool builtin;
  45 };
  46
  47 special_phrase special_phrases[] = {
  48         { "LyX", "\\LyX{}", false },
  49         { "TeX", "\\TeX{}", true },
  50         { "LaTeX2e", "\\LaTeXe{}", true },
  51         { "LaTeX", "\\LaTeX{}", true },
  52 };
  53
  54 size_t const phrases_nr = sizeof(special_phrases)/sizeof(special_phrase);
  55
  56 } // namespace anon
  57
  58
  59 Paragraph::Pimpl::Pimpl(Paragraph * owner)
  60         : owner_(owner)
  61 {
  62         inset_owner = 0;
  63         id_ = paragraph_id++;
  64 }
  65
  66
  67 Paragraph::Pimpl::Pimpl(Pimpl const & p, Paragraph * owner, bool same_ids)
  68         : params(p.params), owner_(owner)
  69 {
  70         inset_owner = p.inset_owner;
  71         text = p.text;
  72         fontlist = p.fontlist;
  73         if (same_ids)
  74                 id_ = p.id_;
  75         else
  76                 id_ = paragraph_id++;
  77
  78         if (p.tracking())
  79                 changes_.reset(new Changes(*p.changes_.get()));
  80 }
  81
  82
  83 void Paragraph::Pimpl::clear()
  84 {
  85         text.clear();
  86 #warning changes ?
  87 }
  88
  89
  90 void Paragraph::Pimpl::setContentsFromPar(Paragraph const * par)
  91 {
  92         lyx::Assert(par);
  93         text = par->pimpl_->text;
  94         if (par->pimpl_->tracking()) {
  95                 changes_.reset(new Changes(*(par->pimpl_->changes_.get())));
  96         }
  97 }
  98
  99
 100 void Paragraph::Pimpl::trackChanges(Change::Type type)
 101 {
 102         if (tracking()) {
 103                 lyxerr[Debug::CHANGES] << "already tracking for par " << id_ << endl;
 104                 return;
 105         }
 106
 107         lyxerr[Debug::CHANGES] << "track changes for par "
 108                 << id_ << " type " << type << endl;
 109         changes_.reset(new Changes(type));
 110         changes_->set(type, 0, size());
 111 }
 112
 113
 114 void Paragraph::Pimpl::untrackChanges()
 115 {
 116         changes_.reset(0);
 117 }
 118
 119
 120 void Paragraph::Pimpl::cleanChanges()
 121 {
 122         // if we're not tracking, we don't want to reset...
 123         if (!tracking())
 124                 return;
 125
 126         changes_.reset(new Changes(Change::INSERTED));
 127         changes_->set(Change::INSERTED, 0, size());
 128 }
 129
 130
 131 bool Paragraph::Pimpl::isChanged(pos_type start, pos_type end) const
 132 {
 133         if (!tracking())
 134                 return false;
 135
 136         return changes_->isChange(start, end);
 137 }
 138
 139
 140 bool Paragraph::Pimpl::isChangeEdited(pos_type start, pos_type end) const
 141 {
 142         if (!tracking())
 143                 return false;
 144
 145         return changes_->isChangeEdited(start, end);
 146 }
 147
 148
 149 void Paragraph::Pimpl::setChange(pos_type pos, Change::Type type)
 150 {
 151         if (!tracking())
 152                 return;
 153
 154         changes_->set(type, pos);
 155 }
 156
 157
 158 Change::Type Paragraph::Pimpl::lookupChange(pos_type pos) const
 159 {
 160         if (!tracking())
 161                 return Change::UNCHANGED;
 162
 163         return changes_->lookup(pos);
 164 }
 165
 166
 167 Change const Paragraph::Pimpl::lookupChangeFull(pos_type pos) const
 168 {
 169         if (!tracking())
 170                 return Change(Change::UNCHANGED);
 171
 172         return changes_->lookupFull(pos);
 173 }
 174
 175
 176 void Paragraph::Pimpl::markErased()
 177 {
 178         lyx::Assert(tracking());
 179
 180         // FIXME: we should actually remove INSERTED chars.
 181         // difficult because owning insettexts/tabulars need
 182         // to update themselves when rows etc. change
 183         changes_->set(Change::DELETED, 0, size());
 184         changes_->reset(Change::DELETED);
 185 }
 186
 187
 188 void Paragraph::Pimpl::acceptChange(pos_type start, pos_type end)
 189 {
 190         if (!tracking())
 191                 return;
 192
 193         if (!size()) {
 194                 changes_.reset(new Changes(Change::UNCHANGED));
 195                 return;
 196         }
 197
 198         lyxerr << "acceptchange" << endl;
 199         pos_type i = start;
 200
 201         for (; i < end; ++i) {
 202                 switch (lookupChange(i)) {
 203                         case Change::UNCHANGED:
 204                                 break;
 205
 206                         case Change::INSERTED:
 207                                 changes_->set(Change::UNCHANGED, i);
 208                                 break;
 209
 210                         case Change::DELETED:
 211                                 eraseIntern(i);
 212                                 changes_->erase(i);
 213                                 --end;
 214                                 --i;
 215                                 break;
 216                 }
 217         }
 218
 219         lyxerr << "endacceptchange" << endl;
 220         changes_->reset(Change::UNCHANGED);
 221 }
 222
 223
 224 void Paragraph::Pimpl::rejectChange(pos_type start, pos_type end)
 225 {
 226         if (!tracking())
 227                 return;
 228
 229         if (!size()) {
 230                 changes_.reset(new Changes(Change::UNCHANGED));
 231                 return;
 232         }
 233
 234         pos_type i = start;
 235
 236         for (; i < end; ++i) {
 237                 switch (lookupChange(i)) {
 238                         case Change::UNCHANGED:
 239                                 break;
 240
 241                         case Change::INSERTED:
 242                                 eraseIntern(i);
 243                                 changes_->erase(i);
 244                                 --end;
 245                                 --i;
 246                                 break;
 247
 248                         case Change::DELETED:
 249                                 changes_->set(Change::UNCHANGED, i);
 250                                 break;
 251                 }
 252         }
 253         changes_->reset(Change::UNCHANGED);
 254 }
 255
 256
 257 Paragraph::value_type Paragraph::Pimpl::getChar(pos_type pos) const
 258 {
 259         // This is in the critical path for loading!
 260         pos_type const siz = size();
 261         lyx::Assert(pos <= siz);
 262         // This is stronger, and I belive that this is the assertion
 263         // that we should really use. (Lgb)
 264         //Assert(pos < size());
 265
 266         // Then this has no meaning. (Lgb)
 267         if (!siz || pos == siz)
 268                 return '\0';
 269
 270         return text[pos];
 271 }
 272
 273
 274 void Paragraph::Pimpl::setChar(pos_type pos, value_type c)
 275 {
 276 #warning changes
 277         text[pos] = c;
 278 }
 279
 280
 281 void Paragraph::Pimpl::insertChar(pos_type pos, value_type c,
 282                                   LyXFont const & font, Change change)
 283 {
 284         lyx::Assert(pos <= size());
 285
 286         if (tracking()) {
 287                 changes_->record(change, pos);
 288         }
 289
 290         // This is actually very common when parsing buffers (and
 291         // maybe inserting ascii text)
 292         if (pos == size()) {
 293                 // when appending characters, no need to update tables
 294                 text.push_back(c);
 295                 owner_->setFont(pos, font);
 296                 return;
 297         }
 298
 299         text.insert(text.begin() + pos, c);
 300
 301         // Update the font table.
 302         FontTable search_font(pos, LyXFont());
 303         for (FontList::iterator it = lower_bound(fontlist.begin(),
 304                                                       fontlist.end(),
 305                                                       search_font, matchFT());
 306              it != fontlist.end(); ++it)
 307         {
 308                 it->pos(it->pos() + 1);
 309         }
 310
 311         // Update the insets
 312         owner_->insetlist.increasePosAfterPos(pos);
 313
 314         owner_->setFont(pos, font);
 315 }
 316
 317
 318 void Paragraph::Pimpl::insertInset(pos_type pos,
 319                                    Inset * inset, LyXFont const & font, Change change)
 320 {
 321         lyx::Assert(inset);
 322         lyx::Assert(pos <= size());
 323
 324         insertChar(pos, META_INSET, font, change);
 325         lyx::Assert(text[pos] == META_INSET);
 326
 327         // Add a new entry in the insetlist.
 328         owner_->insetlist.insert(inset, pos);
 329         inset->parOwner(owner_);
 330
 331         if (inset_owner)
 332                 inset->setOwner(inset_owner);
 333 }
 334
 335
 336 bool Paragraph::Pimpl::erasePos(pos_type pos)
 337 {
 338         lyx::Assert(pos < size());
 339
 340         if (tracking()) {
 341                 Change::Type changetype(changes_->lookup(pos));
 342                 changes_->record(Change(Change::DELETED), pos);
 343
 344                 // only allow the actual removal if it was /new/ text
 345                 if (changetype != Change::INSERTED) {
 346                         if (text[pos] == Paragraph::META_INSET) {
 347                                 Inset * i(owner_->getInset(pos));
 348                                 i->markErased();
 349                         }
 350                         return false;
 351                 }
 352         }
 353
 354         eraseIntern(pos);
 355         return true;
 356 }
 357
 358
 359 void Paragraph::Pimpl::eraseIntern(pos_type pos)
 360 {
 361         // if it is an inset, delete the inset entry
 362         if (text[pos] == Paragraph::META_INSET) {
 363                 owner_->insetlist.erase(pos);
 364         }
 365
 366         text.erase(text.begin() + pos);
 367
 368         // Erase entries in the tables.
 369         FontTable search_font(pos, LyXFont());
 370
 371         FontList::iterator it =
 372                 lower_bound(fontlist.begin(),
 373                             fontlist.end(),
 374                             search_font, matchFT());
 375         if (it != fontlist.end() && it->pos() == pos &&
 376             (pos == 0 ||
 377              (it != fontlist.begin()
 378               && boost::prior(it)->pos() == pos - 1))) {
 379                 // If it is a multi-character font
 380                 // entry, we just make it smaller
 381                 // (see update below), otherwise we
 382                 // should delete it.
 383                 unsigned int const i = it - fontlist.begin();
 384                 fontlist.erase(fontlist.begin() + i);
 385                 it = fontlist.begin() + i;
 386                 if (i > 0 && i < fontlist.size() &&
 387                     fontlist[i - 1].font() == fontlist[i].font()) {
 388                         fontlist.erase(fontlist.begin() + i - 1);
 389                         it = fontlist.begin() + i - 1;
 390                 }
 391         }
 392
 393         // Update all other entries.
 394         FontList::iterator fend = fontlist.end();
 395         for (; it != fend; ++it)
 396                 it->pos(it->pos() - 1);
 397
 398         // Update the insetlist.
 399         owner_->insetlist.decreasePosAfterPos(pos);
 400 }
 401
 402
 403 void Paragraph::Pimpl::erase(pos_type pos)
 404 {
 405         erasePos(pos);
 406 }
 407
 408
 409 bool Paragraph::Pimpl::erase(pos_type start, pos_type end)
 410 {
 411         pos_type i = start;
 412         pos_type count = end - start;
 413         bool any_erased = false;
 414
 415         while (count) {
 416                 if (!erasePos(i)) {
 417                         ++i;
 418                 } else {
 419                         any_erased = true;
 420                 }
 421                 --count;
 422         }
 423         return any_erased;
 424 }
 425
 426
 427 void Paragraph::Pimpl::simpleTeXBlanks(ostream & os, TexRow & texrow,
 428                                        pos_type const i,
 429                                        unsigned int & column,
 430                                        LyXFont const & font,
 431                                        LyXLayout const & style)
 432 {
 433         if (style.pass_thru) return;
 434         if (column > lyxrc.ascii_linelen
 435             && i
 436             && getChar(i - 1) != ' '
 437             && (i < size() - 1)
 438             // same in FreeSpacing mode
 439             && !style.free_spacing
 440                 && !owner_->isFreeSpacing()
 441             // In typewriter mode, we want to avoid
 442             // ! . ? : at the end of a line
 443             && !(font.family() == LyXFont::TYPEWRITER_FAMILY
 444                  && (getChar(i - 1) == '.'
 445                      || getChar(i - 1) == '?'
 446                      || getChar(i - 1) == ':'
 447                      || getChar(i - 1) == '!'))) {
 448                 os << '\n';
 449                 texrow.newline();
 450                 texrow.start(owner_, i + 1);
 451                 column = 0;
 452         } else if (style.free_spacing) {
 453                 os << '~';
 454         } else {
 455                 os << ' ';
 456         }
 457 }
 458
 459
 460 bool Paragraph::Pimpl::isTextAt(string const & str, pos_type pos) const
 461 {
 462         pos_type const len = str.length();
 463
 464         // is the paragraph large enough?
 465         if (pos + len > size())
 466                 return false;
 467
 468         // does the wanted text start at point?
 469         for (string::size_type i = 0; i < str.length(); ++i) {
 470                 if (str[i] != text[pos + i])
 471                         return false;
 472         }
 473
 474         // is there a font change in middle of the word?
 475         FontList::const_iterator cit = fontlist.begin();
 476         FontList::const_iterator end = fontlist.end();
 477         for (; cit != end; ++cit) {
 478                 if (cit->pos() >= pos)
 479                         break;
 480         }
 481         if (cit != end && pos + len - 1 > cit->pos())
 482                 return false;
 483
 484         return true;
 485 }
 486
 487
 488 void Paragraph::Pimpl::simpleTeXSpecialChars(Buffer const * buf,
 489                                              BufferParams const & bparams,
 490                                              ostream & os,
 491                                              TexRow & texrow,
 492                                              bool moving_arg,
 493                                              LyXFont & font,
 494                                              LyXFont & running_font,
 495                                              LyXFont & basefont,
 496                                              bool & open_font,
 497                                              Change::Type & running_change,
 498                                              LyXLayout const & style,
 499                                              pos_type & i,
 500                                              unsigned int & column,
 501                                              value_type const c)
 502 {
 503         if (style.pass_thru) {
 504                 if (c != '\0') os << c;
 505                 return;
 506         }
 507         // Two major modes:  LaTeX or plain
 508         // Handle here those cases common to both modes
 509         // and then split to handle the two modes separately.
 510         switch (c) {
 511         case Paragraph::META_INSET: {
 512                 Inset * inset = owner_->getInset(i);
 513
 514                 // FIXME: remove this check
 515                 if (!inset)
 516                         break;
 517
 518                 if (inset->isTextInset()) {
 519                         column += Changes::latexMarkChange(os, running_change,
 520                                 Change::UNCHANGED);
 521                         running_change = Change::UNCHANGED;
 522                 }
 523
 524                 bool close = false;
 525                 int const len = os.tellp();
 526                 //ostream::pos_type const len = os.tellp();
 527                 if ((inset->lyxCode() == Inset::GRAPHICS_CODE
 528                      || inset->lyxCode() == Inset::MATH_CODE
 529                      || inset->lyxCode() == Inset::URL_CODE)
 530                     && running_font.isRightToLeft()) {
 531                         os << "\\L{";
 532                         close = true;
 533                 }
 534
 535 #ifdef WITH_WARNINGS
 536 #warning Bug: we can have an empty font change here!
 537 // if there has just been a font change, we are going to close it
 538 // right now, which means stupid latex code like \textsf{}. AFAIK,
 539 // this does not harm dvi output. A minor bug, thus (JMarc)
 540 #endif
 541                 // some insets cannot be inside a font change command
 542                 if (open_font && inset->noFontChange()) {
 543                         column +=running_font.
 544                                 latexWriteEndChanges(os,
 545                                                      basefont,
 546                                                      basefont);
 547                         open_font = false;
 548                         basefont = owner_->getLayoutFont(bparams);
 549                         running_font = basefont;
 550                 }
 551
 552                 int tmp = inset->latex(buf, os, moving_arg,
 553                                        style.free_spacing);
 554
 555                 if (close)
 556                         os << '}';
 557
 558                 if (tmp) {
 559                         for (int j = 0; j < tmp; ++j) {
 560                                 texrow.newline();
 561                         }
 562                         texrow.start(owner_, i + 1);
 563                         column = 0;
 564                 } else {
 565                         column += int(os.tellp()) - len;
 566                 }
 567         }
 568         break;
 569
 570         case Paragraph::META_NEWLINE:
 571                 if (open_font) {
 572                         column += running_font.latexWriteEndChanges(os,
 573                                                                     basefont,
 574                                                                     basefont);
 575                         open_font = false;
 576                 }
 577                 basefont = owner_->getLayoutFont(bparams);
 578                 running_font = basefont;
 579                 break;
 580
 581         case Paragraph::META_HFILL:
 582                 os << "\\hfill{}";
 583                 column += 7;
 584                 break;
 585
 586         default:
 587                 // And now for the special cases within each mode
 588
 589                 switch (c) {
 590                 case '\\':
 591                         os << "\\textbackslash{}";
 592                         column += 15;
 593                         break;
 594
 595                 case '±': case '²': case '³':
 596                 case '×': case '÷': case '¹':
 597                 case '¬': case 'µ':
 598                         if ((bparams.inputenc == "latin1" ||
 599                              bparams.inputenc == "latin9") ||
 600                             (bparams.inputenc == "auto" &&
 601                              (font.language()->encoding()->LatexName()
 602                               == "latin1" ||
 603                               font.language()->encoding()->LatexName()
 604                               == "latin9"))) {
 605                                 os << "\\ensuremath{"
 606                                    << c
 607                                    << '}';
 608                                 column += 13;
 609                         } else {
 610                                 os << c;
 611                         }
 612                         break;
 613
 614                 case '|': case '<': case '>':
 615                         // In T1 encoding, these characters exist
 616                         if (lyxrc.fontenc == "T1") {
 617                                 os << c;
 618                                 //... but we should avoid ligatures
 619                                 if ((c == '>' || c == '<')
 620                                     && i <= size() - 2
 621                                     && getChar(i + 1) == c) {
 622                                         //os << "\\textcompwordmark{}";
 623                                         // Jean-Marc, have a look at
 624                                         // this. I think this works
 625                                         // equally well:
 626                                         os << "\\,{}";
 627                                         // Lgb
 628                                         column += 19;
 629                                 }
 630                                 break;
 631                         }
 632                         // Typewriter font also has them
 633                         if (font.family() == LyXFont::TYPEWRITER_FAMILY) {
 634                                 os << c;
 635                                 break;
 636                         }
 637                         // Otherwise, we use what LaTeX
 638                         // provides us.
 639                         switch (c) {
 640                         case '<':
 641                                 os << "\\textless{}";
 642                                 column += 10;
 643                                 break;
 644                         case '>':
 645                                 os << "\\textgreater{}";
 646                                 column += 13;
 647                                 break;
 648                         case '|':
 649                                 os << "\\textbar{}";
 650                                 column += 9;
 651                                 break;
 652                         }
 653                         break;
 654
 655                 case '-': // "--" in Typewriter mode -> "-{}-"
 656                         if (i <= size() - 2
 657                             && getChar(i + 1) == '-'
 658                             && font.family() == LyXFont::TYPEWRITER_FAMILY) {
 659                                 os << "-{}";
 660                                 column += 2;
 661                         } else {
 662                                 os << '-';
 663                         }
 664                         break;
 665
 666                 case '\"':
 667                         os << "\\char`\\\"{}";
 668                         column += 9;
 669                         break;
 670
 671                 case '£':
 672                         if (bparams.inputenc == "default") {
 673                                 os << "\\pounds{}";
 674                                 column += 8;
 675                         } else {
 676                                 os << c;
 677                         }
 678                         break;
 679
 680                 case '$': case '&':
 681                 case '%': case '#': case '{':
 682                 case '}': case '_':
 683                         os << '\\' << c;
 684                         column += 1;
 685                         break;
 686
 687                 case '~':
 688                         os << "\\textasciitilde{}";
 689                         column += 16;
 690                         break;
 691
 692                 case '^':
 693                         os << "\\textasciicircum{}";
 694                         column += 17;
 695                         break;
 696
 697                 case '*': case '[': case ']':
 698                         // avoid being mistaken for optional arguments
 699                         os << '{' << c << '}';
 700                         column += 2;
 701                         break;
 702
 703                 case ' ':
 704                         // Blanks are printed before font switching.
 705                         // Sure? I am not! (try nice-latex)
 706                         // I am sure it's correct. LyX might be smarter
 707                         // in the future, but for now, nothing wrong is
 708                         // written. (Asger)
 709                         break;
 710
 711                 default:
 712
 713                         // I assume this is hack treating typewriter as verbatim
 714                         if (font.family() == LyXFont::TYPEWRITER_FAMILY) {
 715                                 if (c != '\0') {
 716                                         os << c;
 717                                 }
 718                                 break;
 719                         }
 720
 721                         // LyX, LaTeX etc.
 722
 723                         // FIXME: if we have "LaTeX" with a font
 724                         // change in the middle (before the 'T', then
 725                         // the "TeX" part is still special cased.
 726                         // Really we should only operate this on
 727                         // "words" for some definition of word
 728
 729                         size_t pnr = 0;
 730
 731                         for (; pnr < phrases_nr; ++pnr) {
 732                                 if (isTextAt(special_phrases[pnr].phrase, i)) {
 733                                         os << special_phrases[pnr].macro;
 734                                         i += special_phrases[pnr].phrase.length() - 1;
 735                                         column += special_phrases[pnr].macro.length() - 1;
 736                                         break;
 737                                 }
 738                         }
 739
 740                         if (pnr == phrases_nr && c != '\0') {
 741                                 os << c;
 742                         }
 743                         break;
 744                 }
 745         }
 746 }
 747
 748
 749
 750 Paragraph * Paragraph::Pimpl::TeXDeeper(Buffer const * buf,
 751                                         BufferParams const & bparams,
 752                                         ostream & os, TexRow & texrow)
 753 {
 754         lyxerr[Debug::LATEX] << "TeXDeeper...     " << this << endl;
 755         Paragraph * par = owner_;
 756
 757         while (par && par->params().depth() == owner_->params().depth()) {
 758                 if (par->layout()->isEnvironment()) {
 759                         par = par->TeXEnvironment(buf, bparams,
 760                                                   os, texrow);
 761                 } else {
 762                         par = par->TeXOnePar(buf, bparams,
 763                                              os, texrow, false);
 764                 }
 765         }
 766         lyxerr[Debug::LATEX] << "TeXDeeper...done " << par << endl;
 767
 768         return par;
 769 }
 770
 771
 772 void Paragraph::Pimpl::validate(LaTeXFeatures & features,
 773                                 LyXLayout const & layout) const
 774 {
 775         BufferParams const & bparams = features.bufferParams();
 776
 777         // check the params.
 778         if (params.lineTop() || params.lineBottom())
 779                 features.require("lyxline");
 780         if (!params.spacing().isDefault())
 781                 features.require("setspace");
 782
 783         // then the layouts
 784         features.useLayout(layout.name());
 785
 786         // then the fonts
 787         Language const * doc_language = bparams.language;
 788
 789         FontList::const_iterator fcit = fontlist.begin();
 790         FontList::const_iterator fend = fontlist.end();
 791         for (; fcit != fend; ++fcit) {
 792                 if (fcit->font().noun() == LyXFont::ON) {
 793                         lyxerr[Debug::LATEX] << "font.noun: "
 794                                              << fcit->font().noun()
 795                                              << endl;
 796                         features.require("noun");
 797                         lyxerr[Debug::LATEX] << "Noun enabled. Font: "
 798                                              << fcit->font().stateText(0)
 799                                              << endl;
 800                 }
 801                 switch (fcit->font().color()) {
 802                 case LColor::none:
 803                 case LColor::inherit:
 804                 case LColor::ignore:
 805                         // probably we should put here all interface colors used for
 806                         // font displaying! For now I just add this ones I know of (Jug)
 807                 case LColor::latex:
 808                 case LColor::note:
 809                         break;
 810                 default:
 811                         features.require("color");
 812                         lyxerr[Debug::LATEX] << "Color enabled. Font: "
 813                                              << fcit->font().stateText(0)
 814                                              << endl;
 815                 }
 816
 817                 Language const * language = fcit->font().language();
 818                 if (language->babel() != doc_language->babel() &&
 819                     language != ignore_language &&
 820                     language != latex_language)
 821                 {
 822                         features.useLanguage(language);
 823                         lyxerr[Debug::LATEX] << "Found language "
 824                                              << language->babel() << endl;
 825                 }
 826         }
 827
 828         if (!params.leftIndent().zero())
 829                 features.require("ParagraphLeftIndent");
 830
 831         // then the insets
 832         InsetList::iterator icit = owner_->insetlist.begin();
 833         InsetList::iterator iend = owner_->insetlist.end();
 834         for (; icit != iend; ++icit) {
 835                 if (icit.getInset()) {
 836                         icit.getInset()->validate(features);
 837                         if (layout.needprotect &&
 838                             icit.getInset()->lyxCode() == Inset::FOOT_CODE)
 839                                 features.require("NeedLyXFootnoteCode");
 840                 }
 841         }
 842
 843         // then the contents
 844         for (pos_type i = 0; i < size() ; ++i) {
 845                 for (size_t pnr = 0; pnr < phrases_nr; ++pnr) {
 846                         if (!special_phrases[pnr].builtin
 847                             && isTextAt(special_phrases[pnr].phrase, i)) {
 848                                 features.require(special_phrases[pnr].phrase);
 849                                 break;
 850                         }
 851                 }
 852         }
 853 }
 854
 855
 856 Paragraph * Paragraph::Pimpl::getParFromID(int id) const
 857 {
 858         InsetList::iterator cit = owner_->insetlist.begin();
 859         InsetList::iterator lend = owner_->insetlist.end();
 860         Paragraph * result;
 861         for (; cit != lend; ++cit) {
 862                 if ((result = cit.getInset()->getParFromID(id)))
 863                         return result;
 864         }
 865         return 0;
 866 }
 867
 868
 869 LyXFont const Paragraph::Pimpl::realizeFont(LyXFont const & font,
 870                                             BufferParams const & bparams) const
 871 {
 872         LyXFont tmpfont(font);
 873
 874         // check for environment font information
 875         char par_depth = owner_->getDepth();
 876         Paragraph const * par = owner_;
 877         LyXTextClass const & tclass = bparams.getLyXTextClass();
 878
 879         while (par && par->getDepth() && !tmpfont.resolved()) {
 880                 par = par->outerHook();
 881                 if (par) {
 882                         tmpfont.realize(par->layout()->font);
 883                         par_depth = par->getDepth();
 884                 }
 885         }
 886
 887         tmpfont.realize(tclass.defaultfont());
 888         return tmpfont;
 889 }