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 #include "texstream.h"
  29
  30 #include "support/lassert.h"
  31 #include "support/convert.h"
  32 #include "support/debug.h"
  33 #include "support/gettext.h"
  34 #include "support/lstrings.h"
  35
  36 #include <cstring>
  37
  38 using namespace std;
  39 using namespace lyx::support;
  40
  41 namespace lyx {
  42
  43 //
  44 // Strings used to read and write .lyx format files
  45 //
  46 // These are defined in FontInfo.cpp
  47 extern char const * LyXFamilyNames[NUM_FAMILIES + 2];
  48 extern char const * LyXSeriesNames[NUM_SERIES + 2];
  49 extern char const * LyXShapeNames[NUM_SHAPE + 2];
  50 extern char const * LyXSizeNames[NUM_SIZE + 4];
  51 extern char const * LyXMiscNames[5];
  52
  53 //
  54 // Names for the GUI
  55 //
  56
  57 namespace {
  58
  59 char const * GUIFamilyNames[NUM_FAMILIES + 2 /* default & error */] =
  60 { N_("Roman"), N_("Sans Serif"), N_("Typewriter"), N_("Symbol"),
  61   "cmr", "cmsy", "cmm", "cmex", "msa", "msb", "eufrak", "rsfs", "stmry",
  62   "wasy", "esint", N_("Inherit"), N_("Ignore") };
  63
  64 char const * GUISeriesNames[NUM_SERIES + 2 /* default & error */] =
  65 { N_("Medium"), N_("Bold"), N_("Inherit"), N_("Ignore") };
  66
  67 char const * GUIShapeNames[NUM_SHAPE + 2 /* default & error */] =
  68 { N_("Upright"), N_("Italic"), N_("Slanted"), N_("Smallcaps"), N_("Inherit"),
  69   N_("Ignore") };
  70
  71 char const * GUISizeNames[NUM_SIZE + 4 /* increase, decrease, default & error */] =
  72 { N_("Tiny"), N_("Smallest"), N_("Smaller"), N_("Small"), N_("Normal"), N_("Large"),
  73   N_("Larger"), N_("Largest"), N_("Huge"), N_("Huger"), N_("Increase"), N_("Decrease"),
  74   N_("Inherit"), N_("Ignore") };
  75
  76 char const * GUIMiscNames[5] =
  77 { N_("Off"), N_("On"), N_("Toggle"), N_("Inherit"), N_("Ignore") };
  78
  79 //
  80 // Strings used to write LaTeX files
  81 //
  82 char const * LaTeXFamilyNames[NUM_FAMILIES + 2] =
  83 { "textrm", "textsf", "texttt", "error1", "error2", "error3", "error4",
  84   "error5", "error6", "error7", "error8", "error9", "error10", "error11",
  85   "error12", "error13" };
  86
  87 char const * LaTeXSeriesNames[NUM_SERIES + 2] =
  88 { "textmd", "textbf", "error4", "error5" };
  89
  90 char const * LaTeXShapeNames[NUM_SHAPE + 2] =
  91 { "textup", "textit", "textsl", "textsc", "error6", "error7" };
  92
  93 char const * LaTeXSizeNames[NUM_SIZE + 4] =
  94 { "tiny", "scriptsize", "footnotesize", "small", "normalsize", "large",
  95   "Large", "LARGE", "huge", "Huge", "error8", "error9", "error10", "error11" };
  96
  97 } // namespace anon
  98
  99
 100 Font::Font(FontInfo bits, Language const * l)
 101         : bits_(bits), lang_(l), open_encoding_(false)
 102 {
 103         if (!lang_)
 104                 lang_ = default_language;
 105 }
 106
 107
 108 bool Font::isRightToLeft() const
 109 {
 110         return lang_->rightToLeft();
 111 }
 112
 113
 114 bool Font::isVisibleRightToLeft() const
 115 {
 116         return (lang_->rightToLeft() &&
 117                 bits_.number() != FONT_ON);
 118 }
 119
 120
 121 void Font::setLanguage(Language const * l)
 122 {
 123         lang_ = l;
 124 }
 125
 126
 127 /// Updates font settings according to request
 128 void Font::update(Font const & newfont,
 129                      Language const * document_language,
 130                      bool toggleall)
 131 {
 132         bits_.update(newfont.fontInfo(), toggleall);
 133
 134         if (newfont.language() == language() && toggleall)
 135                 if (language() == document_language)
 136                         setLanguage(default_language);
 137                 else
 138                         setLanguage(document_language);
 139         else if (newfont.language() == reset_language)
 140                 setLanguage(document_language);
 141         else if (newfont.language() != ignore_language)
 142                 setLanguage(newfont.language());
 143 }
 144
 145
 146 docstring const stateText(FontInfo const & f)
 147 {
 148         odocstringstream os;
 149         if (f.family() != INHERIT_FAMILY)
 150                 os << _(GUIFamilyNames[f.family()]) << ", ";
 151         if (f.series() != INHERIT_SERIES)
 152                 os << _(GUISeriesNames[f.series()]) << ", ";
 153         if (f.shape() != INHERIT_SHAPE)
 154                 os << _(GUIShapeNames[f.shape()]) << ", ";
 155         if (f.size() != FONT_SIZE_INHERIT)
 156                 os << _(GUISizeNames[f.size()]) << ", ";
 157         if (f.color() != Color_inherit)
 158                 os << lcolor.getGUIName(f.color()) << ", ";
 159         // FIXME: uncomment this when we support background.
 160         //if (f.background() != Color_inherit)
 161         //      os << lcolor.getGUIName(f.background()) << ", ";
 162         if (f.emph() != FONT_INHERIT)
 163                 os << bformat(_("Emphasis %1$s, "),
 164                               _(GUIMiscNames[f.emph()]));
 165         if (f.underbar() != FONT_INHERIT)
 166                 os << bformat(_("Underline %1$s, "),
 167                               _(GUIMiscNames[f.underbar()]));
 168         if (f.strikeout() != FONT_INHERIT)
 169                 os << bformat(_("Strike out %1$s, "),
 170                               _(GUIMiscNames[f.strikeout()]));
 171         if (f.xout() != FONT_INHERIT)
 172                 os << bformat(_("Cross out %1$s, "),
 173                               _(GUIMiscNames[f.xout()]));
 174         if (f.uuline() != FONT_INHERIT)
 175                 os << bformat(_("Double underline %1$s, "),
 176                               _(GUIMiscNames[f.uuline()]));
 177         if (f.uwave() != FONT_INHERIT)
 178                 os << bformat(_("Wavy underline %1$s, "),
 179                               _(GUIMiscNames[f.uwave()]));
 180         if (f.noun() != FONT_INHERIT)
 181                 os << bformat(_("Noun %1$s, "),
 182                               _(GUIMiscNames[f.noun()]));
 183         if (f == inherit_font)
 184                 os << _("Default") << ", ";
 185
 186         return os.str();
 187 }
 188
 189
 190 docstring const Font::stateText(BufferParams * params) const
 191 {
 192         odocstringstream os;
 193         os << lyx::stateText(bits_);
 194         if (!params || (language() != params->language))
 195                 os << bformat(_("Language: %1$s, "),
 196                               _(language()->display()));
 197         if (bits_.number() != FONT_OFF)
 198                 os << "  " << bformat(_("Number %1$s"),
 199                               _(GUIMiscNames[bits_.number()]));
 200         return rtrim(os.str(), ", ");
 201 }
 202
 203
 204 // Returns size in latex format
 205 string const Font::latexSize() const
 206 {
 207         return LaTeXSizeNames[bits_.size()];
 208 }
 209
 210
 211 /// Writes the changes from this font to orgfont in .lyx format in file
 212 void Font::lyxWriteChanges(Font const & orgfont,
 213                               ostream & os) const
 214 {
 215         os << "\n";
 216         if (orgfont.fontInfo().family() != bits_.family())
 217                 os << "\\family " << LyXFamilyNames[bits_.family()] << "\n";
 218         if (orgfont.fontInfo().series() != bits_.series())
 219                 os << "\\series " << LyXSeriesNames[bits_.series()] << "\n";
 220         if (orgfont.fontInfo().shape() != bits_.shape())
 221                 os << "\\shape " << LyXShapeNames[bits_.shape()] << "\n";
 222         if (orgfont.fontInfo().size() != bits_.size())
 223                 os << "\\size " << LyXSizeNames[bits_.size()] << "\n";
 224         if (orgfont.fontInfo().emph() != bits_.emph())
 225                 os << "\\emph " << LyXMiscNames[bits_.emph()] << "\n";
 226         if (orgfont.fontInfo().number() != bits_.number())
 227                 os << "\\numeric " << LyXMiscNames[bits_.number()] << "\n";
 228         if (orgfont.fontInfo().underbar() != bits_.underbar()) {
 229                 // This is only for backwards compatibility
 230                 switch (bits_.underbar()) {
 231                 case FONT_OFF:  os << "\\bar no\n"; break;
 232                 case FONT_ON:        os << "\\bar under\n"; break;
 233                 case FONT_TOGGLE:       lyxerr << "Font::lyxWriteFontChanges: "
 234                                         "FONT_TOGGLE should not appear here!"
 235                                        << endl;
 236                 break;
 237                 case FONT_INHERIT:   os << "\\bar default\n"; break;
 238                 case FONT_IGNORE:    lyxerr << "Font::lyxWriteFontChanges: "
 239                                         "IGNORE should not appear here!"
 240                                        << endl;
 241                 break;
 242                 }
 243         }
 244         if (orgfont.fontInfo().strikeout() != bits_.strikeout()) {
 245                 os << "\\strikeout " << LyXMiscNames[bits_.strikeout()] << "\n";
 246         }
 247         if (orgfont.fontInfo().xout() != bits_.xout()) {
 248                 os << "\\xout " << LyXMiscNames[bits_.xout()] << "\n";
 249         }
 250         if (orgfont.fontInfo().uuline() != bits_.uuline()) {
 251                 os << "\\uuline " << LyXMiscNames[bits_.uuline()] << "\n";
 252         }
 253         if (orgfont.fontInfo().uwave() != bits_.uwave()) {
 254                 os << "\\uwave " << LyXMiscNames[bits_.uwave()] << "\n";
 255         }
 256         if (orgfont.fontInfo().noun() != bits_.noun()) {
 257                 os << "\\noun " << LyXMiscNames[bits_.noun()] << "\n";
 258         }
 259         if (orgfont.fontInfo().color() != bits_.color())
 260                 os << "\\color " << lcolor.getLyXName(bits_.color()) << '\n';
 261         // FIXME: uncomment this when we support background.
 262         //if (orgfont.fontInfo().background() != bits_.background())
 263         //      os << "\\color " << lcolor.getLyXName(bits_.background()) << '\n';
 264         if (orgfont.language() != language() &&
 265             language() != latex_language) {
 266                 if (language())
 267                         os << "\\lang " << language()->lang() << "\n";
 268                 else
 269                         os << "\\lang unknown\n";
 270         }
 271 }
 272
 273
 274 /// Writes the head of the LaTeX needed to impose this font
 275 // Returns number of chars written.
 276 int Font::latexWriteStartChanges(odocstream & os, BufferParams const & bparams,
 277                                     OutputParams const & runparams,
 278                                     Font const & base,
 279                                     Font const & prev) const
 280 {
 281         bool env = false;
 282
 283         int count = 0;
 284
 285         // polyglossia or babel?
 286         if (runparams.use_polyglossia
 287             && language()->lang() != base.language()->lang()
 288             && language() != prev.language()) {
 289                 if (!language()->polyglossia().empty()) {
 290                         string tmp = "\\text" + language()->polyglossia();
 291                         if (!language()->polyglossiaOpts().empty())
 292                                 tmp += "[" + language()->polyglossiaOpts() + "]";
 293                         tmp += "{";
 294                         os << from_ascii(tmp);
 295                         count += tmp.length();
 296                         pushLanguageName(language()->polyglossia(), true);
 297                 } else if (language()->encoding()->package() != Encoding::CJK) {
 298                         os << '{';
 299                         count += 1;
 300                 }
 301         } else if (language()->babel() != base.language()->babel() &&
 302             language() != prev.language()) {
 303                 if (language()->lang() == "farsi") {
 304                         os << "\\textFR{";
 305                         count += 8;
 306                 } else if (!isRightToLeft() &&
 307                             base.language()->lang() == "farsi") {
 308                         os << "\\textLR{";
 309                         count += 8;
 310                 } else if (language()->lang() == "arabic_arabi") {
 311                         os << "\\textAR{";
 312                         count += 8;
 313                 } else if (!isRightToLeft() &&
 314                                 base.language()->lang() == "arabic_arabi") {
 315                         os << "\\textLR{";
 316                         count += 8;
 317                 // currently the remaining RTL languages are arabic_arabtex and hebrew
 318                 } else if (isRightToLeft() != prev.isRightToLeft()) {
 319                         if (isRightToLeft()) {
 320                                 os << "\\R{";
 321                                 count += 3;
 322                         } else {
 323                                 os << "\\L{";
 324                                 count += 3;
 325                         }
 326                 } else if (!language()->babel().empty()) {
 327                         string const tmp =
 328                                 subst(lyxrc.language_command_local,
 329                                       "$$lang", language()->babel());
 330                         os << from_ascii(tmp);
 331                         count += tmp.length();
 332                         if (!lyxrc.language_command_end.empty())
 333                                 pushLanguageName(language()->babel(), true);
 334                 } else if (language()->encoding()->package() != Encoding::CJK) {
 335                         os << '{';
 336                         count += 1;
 337                 }
 338         }
 339
 340         if (language()->encoding()->package() == Encoding::CJK) {
 341                 pair<bool, int> const c = switchEncoding(os, bparams,
 342                                 runparams, *(language()->encoding()));
 343                 if (c.first) {
 344                         open_encoding_ = true;
 345                         count += c.second;
 346                         runparams.encoding = language()->encoding();
 347                 }
 348         }
 349
 350         // If the current language is Hebrew, Arabic, or Farsi
 351         // the numbers are written Left-to-Right. ArabTeX package
 352         // reorders the number automatically but the packages used
 353         // for Hebrew and Farsi (Arabi) do not.
 354         if (!runparams.pass_thru && bits_.number() == FONT_ON
 355             && prev.fontInfo().number() != FONT_ON
 356             && (language()->lang() == "hebrew"
 357                 || language()->lang() == "farsi"
 358                 || language()->lang() == "arabic_arabi")) {
 359                 os << "{\\beginL ";
 360                 count += 9;
 361         }
 362
 363         FontInfo f = bits_;
 364         f.reduce(base.bits_);
 365
 366         if (f.family() != INHERIT_FAMILY) {
 367                 os << '\\'
 368                    << LaTeXFamilyNames[f.family()]
 369                    << '{';
 370                 count += strlen(LaTeXFamilyNames[f.family()]) + 2;
 371                 env = true; //We have opened a new environment
 372         }
 373         if (f.series() != INHERIT_SERIES) {
 374                 os << '\\'
 375                    << LaTeXSeriesNames[f.series()]
 376                    << '{';
 377                 count += strlen(LaTeXSeriesNames[f.series()]) + 2;
 378                 env = true; //We have opened a new environment
 379         }
 380         if (f.shape() != INHERIT_SHAPE) {
 381                 os << '\\'
 382                    << LaTeXShapeNames[f.shape()]
 383                    << '{';
 384                 count += strlen(LaTeXShapeNames[f.shape()]) + 2;
 385                 env = true; //We have opened a new environment
 386         }
 387         if (f.color() != Color_inherit && f.color() != Color_ignore) {
 388                 os << "\\textcolor{"
 389                    << from_ascii(lcolor.getLaTeXName(f.color()))
 390                    << "}{";
 391                 count += lcolor.getLaTeXName(f.color()).length() + 13;
 392                 env = true; //We have opened a new environment
 393         }
 394         // FIXME: uncomment this when we support background.
 395         /*
 396         if (f.background() != Color_inherit && f.background() != Color_ignore) {
 397                 os << "\\textcolor{"
 398                    << from_ascii(lcolor.getLaTeXName(f.background()))
 399                    << "}{";
 400                 count += lcolor.getLaTeXName(f.background()).length() + 13;
 401                 env = true; //We have opened a new environment
 402         }
 403         */
 404         if (f.emph() == FONT_ON) {
 405                 os << "\\emph{";
 406                 count += 6;
 407                 env = true; //We have opened a new environment
 408         }
 409         // \noun{} is a LyX special macro
 410         if (f.noun() == FONT_ON) {
 411                 os << "\\noun{";
 412                 count += 6;
 413                 env = true; //We have opened a new environment
 414         }
 415         if (f.size() != FONT_SIZE_INHERIT) {
 416                 // If we didn't open an environment above, we open one here
 417                 if (!env) {
 418                         os << '{';
 419                         ++count;
 420                 }
 421                 os << '\\'
 422                    << LaTeXSizeNames[f.size()]
 423                    << "{}";
 424                 count += strlen(LaTeXSizeNames[f.size()]) + 3;
 425         }
 426         // The ulem commands need to be on the deepest nesting level
 427         // because ulem puts every nested group or macro in a box,
 428         // which prevents linebreaks (#8424, #8733)
 429         if (f.underbar() == FONT_ON) {
 430                 os << "\\uline{";
 431                 count += 10;
 432                 ++runparams.inulemcmd;
 433         }
 434         if (f.strikeout() == FONT_ON) {
 435                 os << "\\sout{";
 436                 count += 9;
 437                 ++runparams.inulemcmd;
 438         }
 439         if (f.xout() == FONT_ON) {
 440                 os << "\\xout{";
 441                 count += 9;
 442                 ++runparams.inulemcmd;
 443         }
 444         if (f.uuline() == FONT_ON) {
 445                 os << "\\uuline{";
 446                 count += 11;
 447                 ++runparams.inulemcmd;
 448         }
 449         if (f.uwave() == FONT_ON) {
 450                 os << "\\uwave{";
 451                 count += 10;
 452                 ++runparams.inulemcmd;
 453         }
 454         return count;
 455 }
 456
 457
 458 /// Writes ending block of LaTeX needed to close use of this font
 459 // Returns number of chars written
 460 // This one corresponds to latexWriteStartChanges(). (Asger)
 461 int Font::latexWriteEndChanges(otexstream & os, BufferParams const & bparams,
 462                                   OutputParams const & runparams,
 463                                   Font const & base,
 464                                   Font const & next,
 465                                   bool & needPar,
 466                                   bool const & closeLanguage) const
 467 {
 468         int count = 0;
 469         bool env = false;
 470
 471         // reduce the current font to changes against the base
 472         // font (of the layout). We use a temporary for this to
 473         // avoid changing this font instance, as that would break
 474         FontInfo f = bits_;
 475         f.reduce(base.bits_);
 476
 477         if (f.family() != INHERIT_FAMILY) {
 478                 os << '}';
 479                 ++count;
 480                 env = true; // Size change need not bother about closing env.
 481         }
 482         if (f.series() != INHERIT_SERIES) {
 483                 os << '}';
 484                 ++count;
 485                 env = true; // Size change need not bother about closing env.
 486         }
 487         if (f.shape() != INHERIT_SHAPE) {
 488                 os << '}';
 489                 ++count;
 490                 env = true; // Size change need not bother about closing env.
 491         }
 492         if (f.color() != Color_inherit && f.color() != Color_ignore) {
 493                 os << '}';
 494                 ++count;
 495                 env = true; // Size change need not bother about closing env.
 496         }
 497         if (f.emph() == FONT_ON) {
 498                 os << '}';
 499                 ++count;
 500                 env = true; // Size change need not bother about closing env.
 501         }
 502         if (f.noun() == FONT_ON) {
 503                 os << '}';
 504                 ++count;
 505                 env = true; // Size change need not bother about closing env.
 506         }
 507         if (f.size() != FONT_SIZE_INHERIT) {
 508                 // We only have to close if only size changed
 509                 if (!env) {
 510                         if (needPar && !closeLanguage) {
 511                                 os << "\\par";
 512                                 count += 4;
 513                                 needPar = false;
 514                         }
 515                         os << '}';
 516                         ++count;
 517                 }
 518         }
 519         if (f.underbar() == FONT_ON) {
 520                 os << '}';
 521                 ++count;
 522                 --runparams.inulemcmd;
 523         }
 524         if (f.strikeout() == FONT_ON) {
 525                 os << '}';
 526                 ++count;
 527                 --runparams.inulemcmd;
 528         }
 529         if (f.xout() == FONT_ON) {
 530                 os << '}';
 531                 ++count;
 532                 --runparams.inulemcmd;
 533         }
 534         if (f.uuline() == FONT_ON) {
 535                 os << '}';
 536                 ++count;
 537                 --runparams.inulemcmd;
 538         }
 539         if (f.uwave() == FONT_ON) {
 540                 os << '}';
 541                 ++count;
 542                 --runparams.inulemcmd;
 543         }
 544
 545         // If the current language is Hebrew, Arabic, or Farsi
 546         // the numbers are written Left-to-Right. ArabTeX package
 547         // reorders the number automatically but the packages used
 548         // for Hebrew and Farsi (Arabi) do not.
 549         if (!runparams.pass_thru && bits_.number() == FONT_ON
 550             && next.fontInfo().number() != FONT_ON
 551             && (language()->lang() == "hebrew"
 552                 || language()->lang() == "farsi"
 553                 || language()->lang() == "arabic_arabi")) {
 554                 os << "\\endL}";
 555                 count += 6;
 556         }
 557
 558         if (open_encoding_) {
 559                 // We need to close the encoding even if it does not change
 560                 // to do correct environment nesting
 561                 Encoding const * const ascii = encodings.fromLyXName("ascii");
 562                 pair<bool, int> const c = switchEncoding(os.os(), bparams,
 563                                 runparams, *ascii);
 564                 LATTEST(c.first);
 565                 count += c.second;
 566                 runparams.encoding = ascii;
 567                 open_encoding_ = false;
 568         }
 569
 570         if (closeLanguage
 571             && language() != base.language() && language() != next.language()
 572             && language()->encoding()->package() != Encoding::CJK) {
 573                 os << '}';
 574                 ++count;
 575                 bool const using_begin_end =
 576                         runparams.use_polyglossia ||
 577                                 !lyxrc.language_command_end.empty();
 578                 if (using_begin_end)
 579                         popLanguageName();
 580         }
 581
 582         return count;
 583 }
 584
 585
 586 string Font::toString(bool const toggle) const
 587 {
 588         string const lang = (language() == reset_language)
 589                 ? "reset" : language()->lang();
 590
 591         ostringstream os;
 592         os << "family " << bits_.family() << '\n'
 593            << "series " << bits_.series() << '\n'
 594            << "shape " << bits_.shape() << '\n'
 595            << "size " << bits_.size() << '\n'
 596            << "emph " << bits_.emph() << '\n'
 597            << "underbar " << bits_.underbar() << '\n'
 598            << "strikeout " << bits_.strikeout() << '\n'
 599            << "xout " << bits_.xout() << '\n'
 600            << "uuline " << bits_.uuline() << '\n'
 601            << "uwave " << bits_.uwave() << '\n'
 602            << "noun " << bits_.noun() << '\n'
 603            << "number " << bits_.number() << '\n'
 604            << "color " << bits_.color() << '\n'
 605            << "language " << lang << '\n'
 606            << "toggleall " << convert<string>(toggle);
 607         return os.str();
 608 }
 609
 610
 611 bool Font::fromString(string const & data, bool & toggle)
 612 {
 613         istringstream is(data);
 614         Lexer lex;
 615         lex.setStream(is);
 616
 617         int nset = 0;
 618         while (lex.isOK()) {
 619                 string token;
 620                 if (lex.next())
 621                         token = lex.getString();
 622
 623                 if (token.empty() || !lex.next())
 624                         break;
 625
 626                 if (token == "family") {
 627                         int const next = lex.getInteger();
 628                         bits_.setFamily(FontFamily(next));
 629
 630                 } else if (token == "series") {
 631                         int const next = lex.getInteger();
 632                         bits_.setSeries(FontSeries(next));
 633
 634                 } else if (token == "shape") {
 635                         int const next = lex.getInteger();
 636                         bits_.setShape(FontShape(next));
 637
 638                 } else if (token == "size") {
 639                         int const next = lex.getInteger();
 640                         bits_.setSize(FontSize(next));
 641
 642                 } else if (token == "emph" || token == "underbar"
 643                         || token == "noun" || token == "number"
 644                         || token == "uuline" || token == "uwave"
 645                         || token == "strikeout" || token == "xout") {
 646
 647                         int const next = lex.getInteger();
 648                         FontState const misc = FontState(next);
 649
 650                         if (token == "emph")
 651                                 bits_.setEmph(misc);
 652                         else if (token == "underbar")
 653                                 bits_.setUnderbar(misc);
 654                         else if (token == "strikeout")
 655                                 bits_.setStrikeout(misc);
 656                         else if (token == "xout")
 657                                 bits_.setXout(misc);
 658                         else if (token == "uuline")
 659                                 bits_.setUuline(misc);
 660                         else if (token == "uwave")
 661                                 bits_.setUwave(misc);
 662                         else if (token == "noun")
 663                                 bits_.setNoun(misc);
 664                         else if (token == "number")
 665                                 bits_.setNumber(misc);
 666
 667                 } else if (token == "color") {
 668                         int const next = lex.getInteger();
 669                         bits_.setColor(ColorCode(next));
 670
 671                 /**
 672                 } else if (token == "background") {
 673                         int const next = lex.getInteger();
 674                         bits_.setBackground(ColorCode(next));
 675                 */
 676
 677                 } else if (token == "language") {
 678                         string const next = lex.getString();
 679                         setLanguage(languages.getLanguage(next));
 680
 681                 } else if (token == "toggleall") {
 682                         toggle = lex.getBool();
 683
 684                 } else {
 685                         // Unrecognised token
 686                         break;
 687                 }
 688
 689                 ++nset;
 690         }
 691         return (nset > 0);
 692 }
 693
 694
 695 void Font::validate(LaTeXFeatures & features) const
 696 {
 697         BufferParams const & bparams = features.bufferParams();
 698         Language const * doc_language = bparams.language;
 699
 700         if (bits_.noun() == FONT_ON) {
 701                 LYXERR(Debug::LATEX, "font.noun: " << bits_.noun());
 702                 features.require("noun");
 703                 LYXERR(Debug::LATEX, "Noun enabled. Font: " << to_utf8(stateText(0)));
 704         }
 705         if (bits_.underbar() == FONT_ON) {
 706                 LYXERR(Debug::LATEX, "font.underline: " << bits_.underbar());
 707                 features.require("ulem");
 708                 LYXERR(Debug::LATEX, "Underline enabled. Font: " << to_utf8(stateText(0)));
 709         }
 710         if (bits_.strikeout() == FONT_ON) {
 711                 LYXERR(Debug::LATEX, "font.strikeout: " << bits_.strikeout());
 712                 features.require("ulem");
 713                 LYXERR(Debug::LATEX, "Strike out enabled. Font: " << to_utf8(stateText(0)));
 714         }
 715         if (bits_.xout() == FONT_ON) {
 716                 LYXERR(Debug::LATEX, "font.xout: " << bits_.xout());
 717                 features.require("ulem");
 718                 LYXERR(Debug::LATEX, "Cross out enabled. Font: " << to_utf8(stateText(0)));
 719         }
 720         if (bits_.uuline() == FONT_ON) {
 721                 LYXERR(Debug::LATEX, "font.uuline: " << bits_.uuline());
 722                 features.require("ulem");
 723                 LYXERR(Debug::LATEX, "Double underline enabled. Font: " << to_utf8(stateText(0)));
 724         }
 725         if (bits_.uwave() == FONT_ON) {
 726                 LYXERR(Debug::LATEX, "font.uwave: " << bits_.uwave());
 727                 features.require("ulem");
 728                 LYXERR(Debug::LATEX, "Wavy underline enabled. Font: " << to_utf8(stateText(0)));
 729         }
 730         switch (bits_.color()) {
 731                 case Color_none:
 732                 case Color_inherit:
 733                 case Color_ignore:
 734                         // probably we should put here all interface colors used for
 735                         // font displaying! For now I just add this ones I know of (Jug)
 736                 case Color_latex:
 737                 case Color_notelabel:
 738                         break;
 739                 case Color_brown:
 740                 case Color_darkgray:
 741                 case Color_gray:
 742                 case Color_lightgray:
 743                 case Color_lime:
 744                 case Color_olive:
 745                 case Color_orange:
 746                 case Color_pink:
 747                 case Color_purple:
 748                 case Color_teal:
 749                 case Color_violet:
 750                         features.require("xcolor");
 751                         break;
 752                 default:
 753                         features.require("color");
 754                         LYXERR(Debug::LATEX, "Color enabled. Font: " << to_utf8(stateText(0)));
 755         }
 756
 757         // FIXME: Do something for background and soul package?
 758
 759         if (((features.usePolyglossia() && lang_->polyglossia() != doc_language->polyglossia())
 760              || (features.useBabel() && lang_->babel() != doc_language->babel())
 761              || (doc_language->encoding()->package() == Encoding::CJK && lang_ != doc_language))
 762             && lang_ != ignore_language
 763             && lang_ != latex_language)
 764         {
 765                 features.useLanguage(lang_);
 766                 LYXERR(Debug::LATEX, "Found language " << lang_->lang());
 767         }
 768 }
 769
 770
 771 ostream & operator<<(ostream & os, FontState fms)
 772 {
 773         return os << int(fms);
 774 }
 775
 776
 777 ostream & operator<<(ostream & os, FontInfo const & f)
 778 {
 779         return os << "font:"
 780                 << " family " << f.family()
 781                 << " series " << f.series()
 782                 << " shape " << f.shape()
 783                 << " size " << f.size()
 784                 << " color " << f.color()
 785                 // FIXME: uncomment this when we support background.
 786                 //<< " background " << f.background()
 787                 << " emph " << f.emph()
 788                 << " underbar " << f.underbar()
 789                 << " strikeout " << f.strikeout()
 790                 << " xout " << f.xout()
 791                 << " uuline " << f.uuline()
 792                 << " uwave " << f.uwave()
 793                 << " noun " << f.noun()
 794                 << " number " << f.number();
 795 }
 796
 797
 798 ostream & operator<<(ostream & os, Font const & font)
 799 {
 800         return os << font.bits_
 801                 << " lang: " << (font.lang_ ? font.lang_->lang() : 0);
 802 }
 803
 804
 805 } // namespace lyx