src/Font.cpp

   1 /**
   2  * \file src/Font.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Lars Gullik Bjønnes
   7  * \author Jean-Marc Lasgouttes
   8  * \author Angus Leeming
   9  * \author André Pönitz
  10  * \author Dekel Tsur
  11  *
  12  * Full author contact details are available in file CREDITS.
  13  */
  14
  15 #include <config.h>
  16
  17 #include "Font.h"
  18
  19 #include "BufferParams.h" // stateText
  20 #include "ColorSet.h"
  21 #include "Encoding.h"
  22 #include "Language.h"
  23 #include "LaTeXFeatures.h"
  24 #include "Lexer.h"
  25 #include "LyXRC.h"
  26 #include "output_latex.h"
  27 #include "OutputParams.h"
  28
  29 #include "support/lassert.h"
  30 #include "support/convert.h"
  31 #include "support/debug.h"
  32 #include "support/gettext.h"
  33 #include "support/lstrings.h"
  34
  35 #include <cstring>
  36
  37 using namespace std;
  38 using namespace lyx::support;
  39
  40 namespace lyx {
  41
  42 //
  43 // Strings used to read and write .lyx format files
  44 //
  45 // These are defined in FontInfo.cpp
  46 extern char const * LyXFamilyNames[NUM_FAMILIES + 2];
  47 extern char const * LyXSeriesNames[4];
  48 extern char const * LyXShapeNames[6];
  49 extern char const * LyXSizeNames[14];
  50 extern char const * LyXMiscNames[5];
  51
  52 //
  53 // Names for the GUI
  54 //
  55
  56 namespace {
  57
  58 char const * GUIFamilyNames[NUM_FAMILIES + 2 /* default & error */] =
  59 { N_("Roman"), N_("Sans Serif"), N_("Typewriter"), N_("Symbol"),
  60   "cmr", "cmsy", "cmm", "cmex", "msa", "msb", "eufrak", "wasy", "esint",
  61   N_("Inherit"), N_("Ignore") };
  62
  63 char const * GUISeriesNames[4] =
  64 { N_("Medium"), N_("Bold"), N_("Inherit"), N_("Ignore") };
  65
  66 char const * GUIShapeNames[6] =
  67 { N_("Upright"), N_("Italic"), N_("Slanted"), N_("Smallcaps"), N_("Inherit"),
  68   N_("Ignore") };
  69
  70 char const * GUISizeNames[14] =
  71 { N_("Tiny"), N_("Smallest"), N_("Smaller"), N_("Small"), N_("Normal"), N_("Large"),
  72   N_("Larger"), N_("Largest"), N_("Huge"), N_("Huger"), N_("Increase"), N_("Decrease"),
  73   N_("Inherit"), N_("Ignore") };
  74
  75 char const * GUIMiscNames[5] =
  76 { N_("Off"), N_("On"), N_("Toggle"), N_("Inherit"), N_("Ignore") };
  77
  78 //
  79 // Strings used to write LaTeX files
  80 //
  81 char const * LaTeXFamilyNames[6] =
  82 { "textrm", "textsf", "texttt", "error1", "error2", "error3" };
  83
  84 char const * LaTeXSeriesNames[4] =
  85 { "textmd", "textbf", "error4", "error5" };
  86
  87 char const * LaTeXShapeNames[6] =
  88 { "textup", "textit", "textsl", "textsc", "error6", "error7" };
  89
  90 char const * LaTeXSizeNames[14] =
  91 { "tiny", "scriptsize", "footnotesize", "small", "normalsize", "large",
  92   "Large", "LARGE", "huge", "Huge", "error8", "error9", "error10", "error11" };
  93
  94 } // namespace anon
  95
  96
  97 Font::Font(FontInfo bits, Language const * l)
  98         : bits_(bits), lang_(l), misspelled_(false), open_encoding_(false)
  99 {
 100         if (!lang_)
 101                 lang_ = default_language;
 102 }
 103
 104
 105 bool Font::isRightToLeft() const
 106 {
 107         return lang_->rightToLeft();
 108 }
 109
 110
 111 bool Font::isVisibleRightToLeft() const
 112 {
 113         return (lang_->rightToLeft() &&
 114                 bits_.number() != FONT_ON);
 115 }
 116
 117
 118 void Font::setLanguage(Language const * l)
 119 {
 120         lang_ = l;
 121 }
 122
 123
 124 /// Updates font settings according to request
 125 void Font::update(Font const & newfont,
 126                      Language const * document_language,
 127                      bool toggleall)
 128 {
 129         bits_.update(newfont.fontInfo(), toggleall);
 130
 131         if (newfont.language() == language() && toggleall)
 132                 if (language() == document_language)
 133                         setLanguage(default_language);
 134                 else
 135                         setLanguage(document_language);
 136         else if (newfont.language() == reset_language)
 137                 setLanguage(document_language);
 138         else if (newfont.language() != ignore_language)
 139                 setLanguage(newfont.language());
 140 }
 141
 142
 143 docstring const stateText(FontInfo const & f)
 144 {
 145         odocstringstream os;
 146         if (f.family() != INHERIT_FAMILY)
 147                 os << _(GUIFamilyNames[f.family()]) << ", ";
 148         if (f.series() != INHERIT_SERIES)
 149                 os << _(GUISeriesNames[f.series()]) << ", ";
 150         if (f.shape() != INHERIT_SHAPE)
 151                 os << _(GUIShapeNames[f.shape()]) << ", ";
 152         if (f.size() != FONT_SIZE_INHERIT)
 153                 os << _(GUISizeNames[f.size()]) << ", ";
 154         if (f.color() != Color_inherit)
 155                 os << lcolor.getGUIName(f.color()) << ", ";
 156         // FIXME: uncomment this when we support background.
 157         //if (f.background() != Color_inherit)
 158         //      os << lcolor.getGUIName(f.background()) << ", ";
 159         if (f.emph() != FONT_INHERIT)
 160                 os << bformat(_("Emphasis %1$s, "),
 161                               _(GUIMiscNames[f.emph()]));
 162         if (f.underbar() != FONT_INHERIT)
 163                 os << bformat(_("Underline %1$s, "),
 164                               _(GUIMiscNames[f.underbar()]));
 165         if (f.strikeout() != FONT_INHERIT)
 166                 os << bformat(_("Strikeout %1$s, "),
 167                               _(GUIMiscNames[f.strikeout()]));
 168         if (f.uuline() != FONT_INHERIT)
 169                 os << bformat(_("Double underline %1$s, "),
 170                               _(GUIMiscNames[f.uuline()]));
 171         if (f.uwave() != FONT_INHERIT)
 172                 os << bformat(_("Wavy underline %1$s, "),
 173                               _(GUIMiscNames[f.uwave()]));
 174         if (f.noun() != FONT_INHERIT)
 175                 os << bformat(_("Noun %1$s, "),
 176                               _(GUIMiscNames[f.noun()]));
 177         if (f == inherit_font)
 178                 os << _("Default") << ", ";
 179
 180         return os.str();
 181 }
 182
 183
 184 docstring const Font::stateText(BufferParams * params) const
 185 {
 186         odocstringstream os;
 187         os << lyx::stateText(bits_);
 188         if (!params || (language() != params->language))
 189                 os << bformat(_("Language: %1$s, "),
 190                               _(language()->display()));
 191         if (bits_.number() != FONT_OFF)
 192                 os << bformat(_("  Number %1$s"),
 193                               _(GUIMiscNames[bits_.number()]));
 194         return rtrim(os.str(), ", ");
 195 }
 196
 197
 198 // Returns size in latex format
 199 string const Font::latexSize() const
 200 {
 201         return LaTeXSizeNames[bits_.size()];
 202 }
 203
 204
 205 /// Writes the changes from this font to orgfont in .lyx format in file
 206 void Font::lyxWriteChanges(Font const & orgfont,
 207                               ostream & os) const
 208 {
 209         os << "\n";
 210         if (orgfont.fontInfo().family() != bits_.family())
 211                 os << "\\family " << LyXFamilyNames[bits_.family()] << "\n";
 212         if (orgfont.fontInfo().series() != bits_.series())
 213                 os << "\\series " << LyXSeriesNames[bits_.series()] << "\n";
 214         if (orgfont.fontInfo().shape() != bits_.shape())
 215                 os << "\\shape " << LyXShapeNames[bits_.shape()] << "\n";
 216         if (orgfont.fontInfo().size() != bits_.size())
 217                 os << "\\size " << LyXSizeNames[bits_.size()] << "\n";
 218         if (orgfont.fontInfo().emph() != bits_.emph())
 219                 os << "\\emph " << LyXMiscNames[bits_.emph()] << "\n";
 220         if (orgfont.fontInfo().number() != bits_.number())
 221                 os << "\\numeric " << LyXMiscNames[bits_.number()] << "\n";
 222         if (orgfont.fontInfo().underbar() != bits_.underbar()) {
 223                 // This is only for backwards compatibility
 224                 switch (bits_.underbar()) {
 225                 case FONT_OFF:  os << "\\bar no\n"; break;
 226                 case FONT_ON:        os << "\\bar under\n"; break;
 227                 case FONT_TOGGLE:       lyxerr << "Font::lyxWriteFontChanges: "
 228                                         "FONT_TOGGLE should not appear here!"
 229                                        << endl;
 230                 break;
 231                 case FONT_INHERIT:   os << "\\bar default\n"; break;
 232                 case FONT_IGNORE:    lyxerr << "Font::lyxWriteFontChanges: "
 233                                         "IGNORE should not appear here!"
 234                                        << endl;
 235                 break;
 236                 }
 237         }
 238         if (orgfont.fontInfo().strikeout() != bits_.strikeout()) {
 239                 os << "\\strikeout " << LyXMiscNames[bits_.strikeout()] << "\n";
 240         }
 241         if (orgfont.fontInfo().uuline() != bits_.uuline()) {
 242                 os << "\\uuline " << LyXMiscNames[bits_.uuline()] << "\n";
 243         }
 244         if (orgfont.fontInfo().uwave() != bits_.uwave()) {
 245                 os << "\\uwave " << LyXMiscNames[bits_.uwave()] << "\n";
 246         }
 247         if (orgfont.fontInfo().noun() != bits_.noun()) {
 248                 os << "\\noun " << LyXMiscNames[bits_.noun()] << "\n";
 249         }
 250         if (orgfont.fontInfo().color() != bits_.color())
 251                 os << "\\color " << lcolor.getLyXName(bits_.color()) << '\n';
 252         // FIXME: uncomment this when we support background.
 253         //if (orgfont.fontInfo().background() != bits_.background())
 254         //      os << "\\color " << lcolor.getLyXName(bits_.background()) << '\n';
 255         if (orgfont.language() != language() &&
 256             language() != latex_language) {
 257                 if (language())
 258                         os << "\\lang " << language()->lang() << "\n";
 259                 else
 260                         os << "\\lang unknown\n";
 261         }
 262 }
 263
 264
 265 /// Writes the head of the LaTeX needed to impose this font
 266 // Returns number of chars written.
 267 int Font::latexWriteStartChanges(odocstream & os, BufferParams const & bparams,
 268                                     OutputParams const & runparams,
 269                                     Font const & base,
 270                                     Font const & prev) const
 271 {
 272         bool env = false;
 273
 274         int count = 0;
 275         if (language()->babel() != base.language()->babel() &&
 276             language() != prev.language()) {
 277                 if (language()->lang() == "farsi") {
 278                         os << "\\textFR{";
 279                         count += 8;
 280                 } else if (!isRightToLeft() &&
 281                             base.language()->lang() == "farsi") {
 282                         os << "\\textLR{";
 283                         count += 8;
 284                 } else if (language()->lang() == "arabic_arabi") {
 285                         os << "\\textAR{";
 286                         count += 8;
 287                 } else if (!isRightToLeft() &&
 288                                 base.language()->lang() == "arabic_arabi") {
 289                         os << "\\textLR{";
 290                         count += 8;
 291                 // currently the remaining RTL languages are arabic_arabtex and hebrew
 292                 } else if (isRightToLeft() != prev.isRightToLeft()) {
 293                         if (isRightToLeft()) {
 294                                 os << "\\R{";
 295                                 count += 3;
 296                         } else {
 297                                 os << "\\L{";
 298                                 count += 3;
 299                         }
 300                 } else if (!language()->babel().empty()) {
 301                         string const tmp =
 302                                 subst(lyxrc.language_command_local,
 303                                       "$$lang", language()->babel());
 304                         os << from_ascii(tmp);
 305                         count += tmp.length();
 306                 } else {
 307                         os << '{';
 308                         count += 1;
 309                 }
 310         }
 311
 312         if (language()->encoding()->package() == Encoding::CJK) {
 313                 pair<bool, int> const c = switchEncoding(os, bparams,
 314                                 runparams, *(language()->encoding()));
 315                 if (c.first) {
 316                         open_encoding_ = true;
 317                         count += c.second;
 318                         runparams.encoding = language()->encoding();
 319                 }
 320         }
 321
 322         // When the current language is Hebrew, Arabic, or Farsi
 323         // the numbers are written Left-to-Right. ArabTeX package
 324         // reorders the number automatically but the packages used
 325         // for Hebrew and Farsi (Arabi) do not.
 326         if (bits_.number() == FONT_ON && prev.fontInfo().number() != FONT_ON
 327                 && (language()->lang() == "hebrew"
 328                         || language()->lang() == "farsi"
 329                         || language()->lang() == "arabic_arabi")) {
 330                 os << "{\\beginL ";
 331                 count += 9;
 332         }
 333
 334         FontInfo f = bits_;
 335         f.reduce(base.bits_);
 336
 337         if (f.family() != INHERIT_FAMILY) {
 338                 os << '\\'
 339                    << LaTeXFamilyNames[f.family()]
 340                    << '{';
 341                 count += strlen(LaTeXFamilyNames[f.family()]) + 2;
 342                 env = true; //We have opened a new environment
 343         }
 344         if (f.series() != INHERIT_SERIES) {
 345                 os << '\\'
 346                    << LaTeXSeriesNames[f.series()]
 347                    << '{';
 348                 count += strlen(LaTeXSeriesNames[f.series()]) + 2;
 349                 env = true; //We have opened a new environment
 350         }
 351         if (f.shape() != INHERIT_SHAPE) {
 352                 os << '\\'
 353                    << LaTeXShapeNames[f.shape()]
 354                    << '{';
 355                 count += strlen(LaTeXShapeNames[f.shape()]) + 2;
 356                 env = true; //We have opened a new environment
 357         }
 358         if (f.color() != Color_inherit && f.color() != Color_ignore) {
 359                 os << "\\textcolor{"
 360                    << from_ascii(lcolor.getLaTeXName(f.color()))
 361                    << "}{";
 362                 count += lcolor.getLaTeXName(f.color()).length() + 13;
 363                 env = true; //We have opened a new environment
 364         }
 365         // FIXME: uncomment this when we support background.
 366         /*
 367         if (f.background() != Color_inherit && f.background() != Color_ignore) {
 368                 os << "\\textcolor{"
 369                    << from_ascii(lcolor.getLaTeXName(f.background()))
 370                    << "}{";
 371                 count += lcolor.getLaTeXName(f.background()).length() + 13;
 372                 env = true; //We have opened a new environment
 373         }
 374         */
 375         if (f.emph() == FONT_ON) {
 376                 os << "\\emph{";
 377                 count += 6;
 378                 env = true; //We have opened a new environment
 379         }
 380         if (f.underbar() == FONT_ON) {
 381                 os << "\\uline{";
 382                 count += 10;
 383                 runparams.inulemcmd = true;
 384                 env = true; //We have opened a new environment
 385         }
 386         if (f.strikeout() == FONT_ON) {
 387                 os << "\\sout{";
 388                 count += 9;
 389                 runparams.inulemcmd = true;
 390                 env = true; //We have opened a new environment
 391         }
 392         if (f.uuline() == FONT_ON) {
 393                 os << "\\uuline{";
 394                 count += 11;
 395                 runparams.inulemcmd = true;
 396                 env = true; //We have opened a new environment
 397         }
 398         if (f.uwave() == FONT_ON) {
 399                 os << "\\uwave{";
 400                 count += 10;
 401                 runparams.inulemcmd = true;
 402                 env = true; //We have opened a new environment
 403         }
 404         // \noun{} is a LyX special macro
 405         if (f.noun() == FONT_ON) {
 406                 os << "\\noun{";
 407                 count += 6;
 408                 env = true; //We have opened a new environment
 409         }
 410         if (f.size() != FONT_SIZE_INHERIT) {
 411                 // If we didn't open an environment above, we open one here
 412                 if (!env) {
 413                         os << '{';
 414                         ++count;
 415                 }
 416                 os << '\\'
 417                    << LaTeXSizeNames[f.size()]
 418                    << ' ';
 419                 count += strlen(LaTeXSizeNames[f.size()]) + 2;
 420         }
 421         return count;
 422 }
 423
 424
 425 /// Writes ending block of LaTeX needed to close use of this font
 426 // Returns number of chars written
 427 // This one corresponds to latexWriteStartChanges(). (Asger)
 428 int Font::latexWriteEndChanges(odocstream & os, BufferParams const & bparams,
 429                                   OutputParams const & runparams,
 430                                   Font const & base,
 431                                   Font const & next,
 432                                   bool const & closeLanguage) const
 433 {
 434         int count = 0;
 435         bool env = false;
 436
 437         // reduce the current font to changes against the base
 438         // font (of the layout). We use a temporary for this to
 439         // avoid changing this font instance, as that would break
 440         FontInfo f = bits_;
 441         f.reduce(base.bits_);
 442
 443         if (f.family() != INHERIT_FAMILY) {
 444                 os << '}';
 445                 ++count;
 446                 env = true; // Size change need not bother about closing env.
 447         }
 448         if (f.series() != INHERIT_SERIES) {
 449                 os << '}';
 450                 ++count;
 451                 env = true; // Size change need not bother about closing env.
 452         }
 453         if (f.shape() != INHERIT_SHAPE) {
 454                 os << '}';
 455                 ++count;
 456                 env = true; // Size change need not bother about closing env.
 457         }
 458         if (f.color() != Color_inherit && f.color() != Color_ignore) {
 459                 os << '}';
 460                 ++count;
 461                 env = true; // Size change need not bother about closing env.
 462         }
 463         if (f.emph() == FONT_ON) {
 464                 os << '}';
 465                 ++count;
 466                 env = true; // Size change need not bother about closing env.
 467         }
 468         if (f.underbar() == FONT_ON) {
 469                 os << '}';
 470                 ++count;
 471                 runparams.inulemcmd = false;
 472                 env = true; // Size change need not bother about closing env.
 473         }
 474         if (f.strikeout() == FONT_ON) {
 475                 os << '}';
 476                 ++count;
 477                 runparams.inulemcmd = false;
 478                 env = true; // Size change need not bother about closing env.
 479         }
 480         if (f.uuline() == FONT_ON) {
 481                 os << '}';
 482                 ++count;
 483                 runparams.inulemcmd = false;
 484                 env = true; // Size change need not bother about closing env.
 485         }
 486         if (f.uwave() == FONT_ON) {
 487                 os << '}';
 488                 ++count;
 489                 runparams.inulemcmd = false;
 490                 env = true; // Size change need not bother about closing env.
 491         }
 492         if (f.noun() == FONT_ON) {
 493                 os << '}';
 494                 ++count;
 495                 env = true; // Size change need not bother about closing env.
 496         }
 497         if (f.size() != FONT_SIZE_INHERIT) {
 498                 // We only have to close if only size changed
 499                 if (!env) {
 500                         os << '}';
 501                         ++count;
 502                 }
 503         }
 504
 505         // When the current language is Hebrew, Arabic, or Farsi
 506         // the numbers are written Left-to-Right. ArabTeX package
 507         // reorders the number automatically but the packages used
 508         // for Hebrew and Farsi (Arabi) do not.
 509         if (bits_.number() == FONT_ON && next.fontInfo().number() != FONT_ON
 510                 && (language()->lang() == "hebrew"
 511                         || language()->lang() == "farsi"
 512                         || language()->lang() == "arabic_arabi")) {
 513                 os << "\\endL}";
 514                 count += 6;
 515         }
 516
 517         if (open_encoding_) {
 518                 // We need to close the encoding even if it does not change
 519                 // to do correct environment nesting
 520                 Encoding const * const ascii = encodings.fromLyXName("ascii");
 521                 pair<bool, int> const c = switchEncoding(os, bparams,
 522                                 runparams, *ascii);
 523                 LASSERT(c.first, /**/);
 524                 count += c.second;
 525                 runparams.encoding = ascii;
 526                 open_encoding_ = false;
 527         }
 528
 529         if (closeLanguage &&
 530                         language() != base.language() && language() != next.language()) {
 531                 os << '}';
 532                 ++count;
 533         }
 534
 535         return count;
 536 }
 537
 538
 539 string Font::toString(bool const toggle) const
 540 {
 541         string const lang = (language() == reset_language)
 542                 ? "reset" : language()->lang();
 543
 544         ostringstream os;
 545         os << "family " << bits_.family() << '\n'
 546            << "series " << bits_.series() << '\n'
 547            << "shape " << bits_.shape() << '\n'
 548            << "size " << bits_.size() << '\n'
 549            << "emph " << bits_.emph() << '\n'
 550            << "underbar " << bits_.underbar() << '\n'
 551            << "strikeout " << bits_.strikeout() << '\n'
 552            << "uuline " << bits_.uuline() << '\n'
 553            << "uwave " << bits_.uwave() << '\n'
 554            << "noun " << bits_.noun() << '\n'
 555            << "number " << bits_.number() << '\n'
 556            << "color " << bits_.color() << '\n'
 557            << "language " << lang << '\n'
 558            << "toggleall " << convert<string>(toggle);
 559         return os.str();
 560 }
 561
 562
 563 bool Font::fromString(string const & data, bool & toggle)
 564 {
 565         istringstream is(data);
 566         Lexer lex;
 567         lex.setStream(is);
 568
 569         int nset = 0;
 570         while (lex.isOK()) {
 571                 string token;
 572                 if (lex.next())
 573                         token = lex.getString();
 574
 575                 if (token.empty() || !lex.next())
 576                         break;
 577
 578                 if (token == "family") {
 579                         int const next = lex.getInteger();
 580                         bits_.setFamily(FontFamily(next));
 581
 582                 } else if (token == "series") {
 583                         int const next = lex.getInteger();
 584                         bits_.setSeries(FontSeries(next));
 585
 586                 } else if (token == "shape") {
 587                         int const next = lex.getInteger();
 588                         bits_.setShape(FontShape(next));
 589
 590                 } else if (token == "size") {
 591                         int const next = lex.getInteger();
 592                         bits_.setSize(FontSize(next));
 593
 594                 } else if (token == "emph" || token == "underbar" ||
 595                            token == "noun" || token == "number" ||
 596                            token == "uuline" || token == "uwave" ||
 597                            token == "strikeout") {
 598
 599                         int const next = lex.getInteger();
 600                         FontState const misc = FontState(next);
 601
 602                         if (token == "emph")
 603                                 bits_.setEmph(misc);
 604                         else if (token == "underbar")
 605                                 bits_.setUnderbar(misc);
 606                         else if (token == "strikeout")
 607                                 bits_.setStrikeout(misc);
 608                         else if (token == "uuline")
 609                                 bits_.setUuline(misc);
 610                         else if (token == "uwave")
 611                                 bits_.setUwave(misc);
 612                         else if (token == "noun")
 613                                 bits_.setNoun(misc);
 614                         else if (token == "number")
 615                                 bits_.setNumber(misc);
 616
 617                 } else if (token == "color") {
 618                         int const next = lex.getInteger();
 619                         bits_.setColor(ColorCode(next));
 620
 621                 /**
 622                 } else if (token == "background") {
 623                         int const next = lex.getInteger();
 624                         bits_.setBackground(ColorCode(next));
 625                 */
 626
 627                 } else if (token == "language") {
 628                         string const next = lex.getString();
 629                         setLanguage(languages.getLanguage(next));
 630
 631                 } else if (token == "toggleall") {
 632                         toggle = lex.getBool();
 633
 634                 } else {
 635                         // Unrecognised token
 636                         break;
 637                 }
 638
 639                 ++nset;
 640         }
 641         return (nset > 0);
 642 }
 643
 644
 645 void Font::validate(LaTeXFeatures & features) const
 646 {
 647         BufferParams const & bparams = features.bufferParams();
 648         Language const * doc_language = bparams.language;
 649
 650         if (bits_.noun() == FONT_ON) {
 651                 LYXERR(Debug::LATEX, "font.noun: " << bits_.noun());
 652                 features.require("noun");
 653                 LYXERR(Debug::LATEX, "Noun enabled. Font: " << to_utf8(stateText(0)));
 654         }
 655         if (bits_.underbar() == FONT_ON) {
 656                 LYXERR(Debug::LATEX, "font.underline: " << bits_.underbar());
 657                 features.require("ulem");
 658                 LYXERR(Debug::LATEX, "Underline enabled. Font: " << to_utf8(stateText(0)));
 659         }
 660         if (bits_.strikeout() == FONT_ON) {
 661                 LYXERR(Debug::LATEX, "font.strikeout: " << bits_.strikeout());
 662                 features.require("ulem");
 663                 LYXERR(Debug::LATEX, "Strikeout enabled. Font: " << to_utf8(stateText(0)));
 664         }
 665         if (bits_.uuline() == FONT_ON) {
 666                 LYXERR(Debug::LATEX, "font.uuline: " << bits_.uuline());
 667                 features.require("ulem");
 668                 LYXERR(Debug::LATEX, "Double underline enabled. Font: " << to_utf8(stateText(0)));
 669         }
 670         if (bits_.uwave() == FONT_ON) {
 671                 LYXERR(Debug::LATEX, "font.uwave: " << bits_.uwave());
 672                 features.require("ulem");
 673                 LYXERR(Debug::LATEX, "Wavy underline enabled. Font: " << to_utf8(stateText(0)));
 674         }
 675         switch (bits_.color()) {
 676                 case Color_none:
 677                 case Color_inherit:
 678                 case Color_ignore:
 679                         // probably we should put here all interface colors used for
 680                         // font displaying! For now I just add this ones I know of (Jug)
 681                 case Color_latex:
 682                 case Color_notelabel:
 683                         break;
 684                 default:
 685                         features.require("color");
 686                         LYXERR(Debug::LATEX, "Color enabled. Font: " << to_utf8(stateText(0)));
 687         }
 688
 689         // FIXME: Do something for background and soul package?
 690
 691         if (lang_->babel() != doc_language->babel() &&
 692                 lang_ != ignore_language &&
 693                 lang_ != latex_language)
 694         {
 695                 features.useLanguage(lang_);
 696                 LYXERR(Debug::LATEX, "Found language " << lang_->lang());
 697         }
 698 }
 699
 700
 701 ostream & operator<<(ostream & os, FontState fms)
 702 {
 703         return os << int(fms);
 704 }
 705
 706
 707 ostream & operator<<(ostream & os, FontInfo const & f)
 708 {
 709         return os << "font:"
 710                 << " family " << f.family()
 711                 << " series " << f.series()
 712                 << " shape " << f.shape()
 713                 << " size " << f.size()
 714                 << " color " << f.color()
 715                 // FIXME: uncomment this when we support background.
 716                 //<< " background " << f.background()
 717                 << " emph " << f.emph()
 718                 << " underbar " << f.underbar()
 719                 << " strikeout " << f.strikeout()
 720                 << " uuline " << f.uuline()
 721                 << " uwave " << f.uwave()
 722                 << " noun " << f.noun()
 723                 << " number " << f.number();
 724 }
 725
 726
 727 ostream & operator<<(ostream & os, Font const & font)
 728 {
 729         return os << font.bits_
 730                 << " lang: " << (font.lang_ ? font.lang_->lang() : 0);
 731 }
 732
 733
 734 } // namespace lyx