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 extern char const * GUIMiscNames[5];
  53
  54 namespace {
  55
  56 //
  57 // Strings used to write LaTeX files
  58 //
  59 char const * LaTeXFamilyCommandNames[NUM_FAMILIES + 2] =
  60 { "textrm", "textsf", "texttt", "error1", "error2", "error3", "error4",
  61   "error5", "error6", "error7", "error8", "error9", "error10", "error11",
  62   "error12", "error13", "error14" };
  63
  64 char const * LaTeXFamilySwitchNames[NUM_FAMILIES + 2] =
  65 { "rmfamily", "sffamily", "ttfamily", "error1", "error2", "error3", "error4",
  66   "error5", "error6", "error7", "error8", "error9", "error10", "error11",
  67   "error12", "error13", "error14" };
  68
  69 char const * LaTeXSeriesCommandNames[NUM_SERIES + 2] =
  70 { "textmd", "textbf", "error4", "error5" };
  71
  72 char const * LaTeXSeriesSwitchNames[NUM_SERIES + 2] =
  73 { "mdseries", "bfseries", "error4", "error5" };
  74
  75 char const * LaTeXShapeCommandNames[NUM_SHAPE + 2] =
  76 { "textup", "textit", "textsl", "textsc", "error6", "error7" };
  77
  78 char const * LaTeXShapeSwitchNames[NUM_SHAPE + 2] =
  79 { "upshape", "itshape", "slshape", "scshape", "error6", "error7" };
  80
  81 char const * LaTeXSizeSwitchNames[NUM_SIZE + 4] =
  82 { "tiny", "scriptsize", "footnotesize", "small", "normalsize", "large",
  83   "Large", "LARGE", "huge", "Huge", "error8", "error9", "error10", "error11" };
  84
  85 } // namespace
  86
  87
  88 Font::Font(FontInfo bits, Language const * l)
  89         : bits_(bits), lang_(l), open_encoding_(false)
  90 {
  91         if (!lang_)
  92                 lang_ = default_language;
  93 }
  94
  95
  96 bool Font::isRightToLeft() const
  97 {
  98         return lang_->rightToLeft();
  99 }
 100
 101
 102 bool Font::isVisibleRightToLeft() const
 103 {
 104         return (lang_->rightToLeft() &&
 105                 bits_.number() != FONT_ON);
 106 }
 107
 108
 109 void Font::setLanguage(Language const * l)
 110 {
 111         lang_ = l;
 112 }
 113
 114
 115 /// Updates font settings according to request
 116 void Font::update(Font const & newfont,
 117                      Language const * document_language,
 118                      bool toggleall)
 119 {
 120         bits_.update(newfont.fontInfo(), toggleall);
 121
 122         if (newfont.language() == language() && toggleall)
 123                 if (language() == document_language)
 124                         setLanguage(default_language);
 125                 else
 126                         setLanguage(document_language);
 127         else if (newfont.language() == reset_language)
 128                 setLanguage(document_language);
 129         else if (newfont.language() != ignore_language)
 130                 setLanguage(newfont.language());
 131 }
 132
 133
 134 docstring const Font::stateText(BufferParams * params, bool const terse) const
 135 {
 136         odocstringstream os;
 137         os << bits_.stateText(terse);
 138         if ((!params || (language() != params->language))
 139             && (!terse || language() != ignore_language)) {
 140                 // reset_language is a null pointer!
 141                 os << bformat(_("Language: %1$s, "),
 142                               (language() == reset_language) ? _("Default")
 143                                                              : _(language()->display()));
 144         }
 145         if (bits_.number() != FONT_OFF)
 146                 os << "  " << bformat(_("Number %1$s"),
 147                               _(GUIMiscNames[bits_.number()]));
 148         return rtrim(os.str(), ", ");
 149 }
 150
 151
 152 // Returns size in latex format
 153 string const Font::latexSize() const
 154 {
 155         return LaTeXSizeSwitchNames[bits_.size()];
 156 }
 157
 158
 159 /// Writes the changes from this font to orgfont in .lyx format in file
 160 void Font::lyxWriteChanges(Font const & orgfont,
 161                               ostream & os) const
 162 {
 163         os << "\n";
 164         if (orgfont.fontInfo().family() != bits_.family())
 165                 os << "\\family " << LyXFamilyNames[bits_.family()] << "\n";
 166         if (orgfont.fontInfo().series() != bits_.series())
 167                 os << "\\series " << LyXSeriesNames[bits_.series()] << "\n";
 168         if (orgfont.fontInfo().shape() != bits_.shape())
 169                 os << "\\shape " << LyXShapeNames[bits_.shape()] << "\n";
 170         if (orgfont.fontInfo().size() != bits_.size())
 171                 os << "\\size " << LyXSizeNames[bits_.size()] << "\n";
 172         // FIXME: shall style be handled there? Probably not.
 173         if (orgfont.fontInfo().emph() != bits_.emph())
 174                 os << "\\emph " << LyXMiscNames[bits_.emph()] << "\n";
 175         if (orgfont.fontInfo().number() != bits_.number())
 176                 os << "\\numeric " << LyXMiscNames[bits_.number()] << "\n";
 177         if (orgfont.fontInfo().nospellcheck() != bits_.nospellcheck())
 178                 os << "\\nospellcheck " << LyXMiscNames[bits_.nospellcheck()] << "\n";
 179         if (orgfont.fontInfo().underbar() != bits_.underbar()) {
 180                 // This is only for backwards compatibility
 181                 switch (bits_.underbar()) {
 182                 case FONT_OFF:  os << "\\bar no\n"; break;
 183                 case FONT_ON:        os << "\\bar under\n"; break;
 184                 case FONT_TOGGLE:       lyxerr << "Font::lyxWriteFontChanges: "
 185                                         "FONT_TOGGLE should not appear here!"
 186                                        << endl;
 187                 break;
 188                 case FONT_INHERIT:   os << "\\bar default\n"; break;
 189                 case FONT_IGNORE:    lyxerr << "Font::lyxWriteFontChanges: "
 190                                         "IGNORE should not appear here!"
 191                                        << endl;
 192                 break;
 193                 }
 194         }
 195         if (orgfont.fontInfo().strikeout() != bits_.strikeout()) {
 196                 os << "\\strikeout " << LyXMiscNames[bits_.strikeout()] << "\n";
 197         }
 198         if (orgfont.fontInfo().xout() != bits_.xout()) {
 199                 os << "\\xout " << LyXMiscNames[bits_.xout()] << "\n";
 200         }
 201         if (orgfont.fontInfo().uuline() != bits_.uuline()) {
 202                 os << "\\uuline " << LyXMiscNames[bits_.uuline()] << "\n";
 203         }
 204         if (orgfont.fontInfo().uwave() != bits_.uwave()) {
 205                 os << "\\uwave " << LyXMiscNames[bits_.uwave()] << "\n";
 206         }
 207         if (orgfont.fontInfo().noun() != bits_.noun()) {
 208                 os << "\\noun " << LyXMiscNames[bits_.noun()] << "\n";
 209         }
 210         if (orgfont.fontInfo().color() != bits_.color())
 211                 os << "\\color " << lcolor.getLyXName(bits_.color()) << '\n';
 212         // FIXME: uncomment this when we support background.
 213         //if (orgfont.fontInfo().background() != bits_.background())
 214         //      os << "\\color " << lcolor.getLyXName(bits_.background()) << '\n';
 215         if (orgfont.language() != language() &&
 216             language() != latex_language) {
 217                 if (language())
 218                         os << "\\lang " << language()->lang() << "\n";
 219                 else
 220                         os << "\\lang unknown\n";
 221         }
 222 }
 223
 224
 225 /// Writes the head of the LaTeX needed to impose this font
 226 // Returns number of chars written.
 227 int Font::latexWriteStartChanges(otexstream & os, BufferParams const & bparams,
 228                                     OutputParams const & runparams,
 229                                     Font const & base,
 230                                     Font const & prev,
 231                                     bool const & non_inherit_inset) const
 232 {
 233         int count = 0;
 234
 235         // polyglossia or babel?
 236         if (runparams.use_polyglossia
 237             && language()->lang() != base.language()->lang()
 238             && language() != prev.language()) {
 239                 if (!language()->polyglossia().empty()) {
 240                         string tmp = "\\text" + language()->polyglossia();
 241                         if (!language()->polyglossiaOpts().empty()) {
 242                                 tmp += "[" + language()->polyglossiaOpts() + "]";
 243                                 if (runparams.use_hyperref && runparams.moving_arg)
 244                                         // We need to strip the command for
 245                                         // the pdf string, see #11813
 246                                         tmp = "\\texorpdfstring{" + tmp + "}{}";
 247                         }
 248                         tmp += "{";
 249                         os << from_ascii(tmp);
 250                         count += tmp.length();
 251                         pushLanguageName(language()->polyglossia(), true);
 252                 } else if (language()->encoding()->package() != Encoding::CJK) {
 253                         os << '{';
 254                         count += 1;
 255                 }
 256         } else if (language()->babel() != base.language()->babel() &&
 257             language() != prev.language()) {
 258                 if (language()->lang() == "farsi") {
 259                         os << "\\textFR{";
 260                         count += 8;
 261                 } else if (!isRightToLeft() &&
 262                             base.language()->lang() == "farsi") {
 263                         os << "\\textLR{";
 264                         count += 8;
 265                 } else if (language()->lang() == "arabic_arabi") {
 266                         os << "\\textAR{";
 267                         count += 8;
 268                 } else if (!isRightToLeft() &&
 269                                 base.language()->lang() == "arabic_arabi") {
 270                         os << "\\textLR{";
 271                         count += 8;
 272                 // currently the remaining RTL languages are arabic_arabtex and hebrew
 273                 } else if (isRightToLeft() != prev.isRightToLeft()) {
 274                         if (isRightToLeft()) {
 275                                 os << "\\R{";
 276                                 count += 3;
 277                         } else {
 278                                 os << "\\L{";
 279                                 count += 3;
 280                         }
 281                 } else if (!language()->babel().empty()) {
 282                         string const tmp =
 283                                 subst(lyxrc.language_command_local,
 284                                       "$$lang", language()->babel());
 285                         os << from_ascii(tmp);
 286                         count += tmp.length();
 287                         if (!lyxrc.language_command_end.empty())
 288                                 pushLanguageName(language()->babel(), true);
 289                 } else if (language()->encoding()->package() != Encoding::CJK) {
 290                         os << '{';
 291                         count += 1;
 292                 }
 293         }
 294
 295         if (language()->encoding()->package() == Encoding::CJK) {
 296                 pair<bool, int> const c = switchEncoding(os.os(), bparams,
 297                                 runparams, *(language()->encoding()));
 298                 if (c.first) {
 299                         open_encoding_ = true;
 300                         count += c.second;
 301                         runparams.encoding = language()->encoding();
 302                 }
 303         }
 304
 305         FontInfo f = bits_;
 306         f.reduce(base.bits_);
 307         FontInfo p = bits_;
 308         p.reduce(prev.bits_);
 309
 310         if (f.size() != INHERIT_SIZE) {
 311                 os << '{';
 312                 ++count;
 313                 os << '\\'
 314                    << LaTeXSizeSwitchNames[f.size()] << termcmd;
 315                 count += strlen(LaTeXSizeSwitchNames[f.size()]) + 1;
 316         }
 317         if (f.family() != INHERIT_FAMILY) {
 318                 if (non_inherit_inset) {
 319                         os << '{';
 320                         ++count;
 321                         os << '\\' << LaTeXFamilySwitchNames[f.family()] << termcmd;
 322                         count += strlen(LaTeXFamilySwitchNames[f.family()]) + 1;
 323                 } else {
 324                         os << '\\'
 325                            << LaTeXFamilyCommandNames[f.family()]
 326                            << '{';
 327                         count += strlen(LaTeXFamilyCommandNames[f.family()]) + 2;
 328                 }
 329         }
 330         if (f.series() != INHERIT_SERIES) {
 331                 if (non_inherit_inset) {
 332                         os << '{';
 333                         ++count;
 334                         os << '\\' << LaTeXSeriesSwitchNames[f.series()] << termcmd;
 335                         count += strlen(LaTeXSeriesSwitchNames[f.series()]) + 1;
 336                 } else {
 337                         os << '\\'
 338                            << LaTeXSeriesCommandNames[f.series()]
 339                            << '{';
 340                         count += strlen(LaTeXSeriesCommandNames[f.series()]) + 2;
 341                 }
 342         }
 343         if (f.shape() != INHERIT_SHAPE) {
 344                 if (non_inherit_inset) {
 345                         os << '{';
 346                         ++count;
 347                         os << '\\' << LaTeXShapeSwitchNames[f.shape()] << termcmd;
 348                         count += strlen(LaTeXShapeSwitchNames[f.shape()]) + 1;
 349                 } else {
 350                         os << '\\'
 351                            << LaTeXShapeCommandNames[f.shape()]
 352                            << '{';
 353                         count += strlen(LaTeXShapeCommandNames[f.shape()]) + 2;
 354                 }
 355         }
 356         if (f.color() != Color_inherit && f.color() != Color_ignore) {
 357                 if (f.color() == Color_none && p.color() != Color_none) {
 358                         // Color none: Close previous color, if any
 359                         os << '}';
 360                         ++count;
 361                 } else if (f.color() != Color_none) {
 362                         os << "\\textcolor{"
 363                            << from_ascii(lcolor.getLaTeXName(f.color()))
 364                            << "}{";
 365                         count += lcolor.getLaTeXName(f.color()).length() + 13;
 366                 }
 367         }
 368         // FIXME: uncomment this when we support background.
 369         /*
 370         if (f.background() != Color_inherit && f.background() != Color_ignore) {
 371                 os << "\\textcolor{"
 372                    << from_ascii(lcolor.getLaTeXName(f.background()))
 373                    << "}{";
 374                 count += lcolor.getLaTeXName(f.background()).length() + 13;
 375                 env = true; //We have opened a new environment
 376         }
 377         */
 378         // If the current language is Hebrew, Arabic, or Farsi
 379         // the numbers are written Left-to-Right. ArabTeX package
 380         // and bidi (polyglossia with XeTeX) reorder the number automatically
 381         // but the packages used for Hebrew and Farsi (Arabi) do not.
 382         if (!runparams.useBidiPackage()
 383             && !runparams.pass_thru
 384             && bits_.number() == FONT_ON
 385             && prev.fontInfo().number() != FONT_ON
 386             && (language()->lang() == "hebrew"
 387                 || language()->lang() == "farsi"
 388                 || language()->lang() == "arabic_arabi")) {
 389                 if (runparams.use_polyglossia) {
 390                         // LuaTeX/luabidi
 391                         os << "\\LR{";
 392                         count += 5;
 393                 } else {
 394                         os << "{\\beginL ";
 395                         count += 9;
 396                 }
 397         }
 398         if (f.emph() == FONT_ON) {
 399                 os << "\\emph{";
 400                 count += 6;
 401         }
 402         // \noun{} is a LyX special macro
 403         if (f.noun() == FONT_ON) {
 404                 os << "\\noun{";
 405                 count += 6;
 406         }
 407         // The ulem commands need to be on the deepest nesting level
 408         // because ulem puts every nested group or macro in a box,
 409         // which prevents linebreaks (#8424, #8733)
 410         if (f.underbar() == FONT_ON) {
 411                 os << "\\uline{";
 412                 count += 10;
 413                 ++runparams.inulemcmd;
 414         }
 415         if (f.uuline() == FONT_ON) {
 416                 os << "\\uuline{";
 417                 count += 11;
 418                 ++runparams.inulemcmd;
 419         }
 420         if (f.strikeout() == FONT_ON) {
 421                 os << "\\sout{";
 422                 count += 9;
 423                 ++runparams.inulemcmd;
 424         }
 425         if (f.xout() == FONT_ON) {
 426                 os << "\\xout{";
 427                 count += 9;
 428                 ++runparams.inulemcmd;
 429         }
 430         if (f.uwave() == FONT_ON) {
 431                 if (runparams.inulemcmd) {
 432                         // needed with nested uwave in xout
 433                         // see https://tex.stackexchange.com/a/263042
 434                         os << "\\ULdepth=1000pt";
 435                         count += 15;
 436                 }
 437                 os << "\\uwave{";
 438                 count += 10;
 439                 ++runparams.inulemcmd;
 440         }
 441         return count;
 442 }
 443
 444
 445 /// Writes ending block of LaTeX needed to close use of this font
 446 // Returns number of chars written
 447 // This one corresponds to latexWriteStartChanges(). (Asger)
 448 int Font::latexWriteEndChanges(otexstream & os, BufferParams const & bparams,
 449                                   OutputParams const & runparams,
 450                                   Font const & base,
 451                                   Font const & next,
 452                                   bool & needPar,
 453                                   bool const & closeLanguage,
 454                                   bool const & non_inherit_inset) const
 455 {
 456         int count = 0;
 457
 458         // reduce the current font to changes against the base
 459         // font (of the layout). We use a temporary for this to
 460         // avoid changing this font instance, as that would break
 461         FontInfo f = bits_;
 462         f.reduce(base.bits_);
 463
 464         if (f.family() != INHERIT_FAMILY && !non_inherit_inset) {
 465                 os << '}';
 466                 ++count;
 467         }
 468         if (f.series() != INHERIT_SERIES && !non_inherit_inset) {
 469                 os << '}';
 470                 ++count;
 471         }
 472         if (f.shape() != INHERIT_SHAPE && !non_inherit_inset) {
 473                 os << '}';
 474                 ++count;
 475         }
 476         if (f.color() != Color_inherit && f.color() != Color_ignore && f.color() != Color_none) {
 477                 os << '}';
 478                 ++count;
 479         }
 480         if (f.emph() == FONT_ON) {
 481                 os << '}';
 482                 ++count;
 483         }
 484         if (f.noun() == FONT_ON) {
 485                 os << '}';
 486                 ++count;
 487         }
 488         if (f.size() != INHERIT_SIZE) {
 489                 // We do not close size group in front of
 490                 // insets with InheritFont() false (as opposed
 491                 // to all other font properties) (#8384)
 492                 if (!non_inherit_inset) {
 493                         if (needPar && !closeLanguage) {
 494                                 os << "\\par";
 495                                 count += 4;
 496                                 needPar = false;
 497                         }
 498                         os << '}';
 499                         ++count;
 500                 }
 501         }
 502         if (f.underbar() == FONT_ON) {
 503                 os << '}';
 504                 ++count;
 505                 --runparams.inulemcmd;
 506         }
 507         if (f.strikeout() == FONT_ON) {
 508                 os << '}';
 509                 ++count;
 510                 --runparams.inulemcmd;
 511         }
 512         if (f.xout() == FONT_ON) {
 513                 os << '}';
 514                 ++count;
 515                 --runparams.inulemcmd;
 516         }
 517         if (f.uuline() == FONT_ON) {
 518                 os << '}';
 519                 ++count;
 520                 --runparams.inulemcmd;
 521         }
 522         if (f.uwave() == FONT_ON) {
 523                 os << '}';
 524                 ++count;
 525                 --runparams.inulemcmd;
 526         }
 527
 528         // If the current language is Hebrew, Arabic, or Farsi
 529         // the numbers are written Left-to-Right. ArabTeX package
 530         // and bidi (polyglossia with XeTeX) reorder the number automatically
 531         // but the packages used for Hebrew and Farsi (Arabi) do not.
 532         if (!runparams.useBidiPackage()
 533             && !runparams.pass_thru
 534             && bits_.number() == FONT_ON
 535             && next.fontInfo().number() != FONT_ON
 536             && (language()->lang() == "hebrew"
 537                 || language()->lang() == "farsi"
 538                 || language()->lang() == "arabic_arabi")) {
 539                 if (runparams.use_polyglossia) {
 540                         // LuaTeX/luabidi
 541                         os << "}";
 542                         count += 1;
 543                 } else {
 544                         os << "\\endL}";
 545                         count += 6;
 546                 }
 547         }
 548
 549         if (open_encoding_) {
 550                 // We need to close the encoding even if it does not change
 551                 // to do correct environment nesting
 552                 Encoding const * const ascii = encodings.fromLyXName("ascii");
 553                 pair<bool, int> const c = switchEncoding(os.os(), bparams,
 554                                 runparams, *ascii);
 555                 LATTEST(c.first);
 556                 count += c.second;
 557                 runparams.encoding = ascii;
 558                 open_encoding_ = false;
 559         }
 560
 561         if (closeLanguage
 562             && language() != base.language() && language() != next.language()
 563             && (language()->encoding()->package() != Encoding::CJK)) {
 564                 os << '}';
 565                 ++count;
 566                 bool const using_begin_end =
 567                         runparams.use_polyglossia ||
 568                                 !lyxrc.language_command_end.empty();
 569                 if (using_begin_end)
 570                         popLanguageName();
 571         }
 572
 573         return count;
 574 }
 575
 576
 577 string Font::toString(bool const toggle) const
 578 {
 579         string const lang = (language() == reset_language)
 580                 ? "reset" : language()->lang();
 581
 582         ostringstream os;
 583         os << "family " << bits_.family() << '\n'
 584            << "series " << bits_.series() << '\n'
 585            << "shape " << bits_.shape() << '\n'
 586            << "size " << bits_.size() << '\n'
 587            << "emph " << bits_.emph() << '\n'
 588            << "underbar " << bits_.underbar() << '\n'
 589            << "strikeout " << bits_.strikeout() << '\n'
 590            << "xout " << bits_.xout() << '\n'
 591            << "uuline " << bits_.uuline() << '\n'
 592            << "uwave " << bits_.uwave() << '\n'
 593            << "noun " << bits_.noun() << '\n'
 594            << "number " << bits_.number() << '\n'
 595            << "nospellcheck " << bits_.nospellcheck() << '\n'
 596            << "color " << bits_.color() << '\n'
 597            << "language " << lang << '\n'
 598            << "toggleall " << convert<string>(toggle);
 599         return os.str();
 600 }
 601
 602
 603 bool Font::fromString(string const & data, bool & toggle)
 604 {
 605         istringstream is(data);
 606         Lexer lex;
 607         lex.setStream(is);
 608
 609         int nset = 0;
 610         while (lex.isOK()) {
 611                 string token;
 612                 if (lex.next())
 613                         token = lex.getString();
 614
 615                 if (token.empty() || !lex.next())
 616                         break;
 617
 618                 if (token == "family") {
 619                         int const next = lex.getInteger();
 620                         bits_.setFamily(FontFamily(next));
 621
 622                 } else if (token == "series") {
 623                         int const next = lex.getInteger();
 624                         bits_.setSeries(FontSeries(next));
 625
 626                 } else if (token == "shape") {
 627                         int const next = lex.getInteger();
 628                         bits_.setShape(FontShape(next));
 629
 630                 } else if (token == "size") {
 631                         int const next = lex.getInteger();
 632                         bits_.setSize(FontSize(next));
 633                 // FIXME: shall style be handled there? Probably not.
 634                 } else if (token == "emph" || token == "underbar"
 635                         || token == "noun" || token == "number"
 636                         || token == "uuline" || token == "uwave"
 637                         || token == "strikeout" || token == "xout"
 638                         || token == "nospellcheck") {
 639
 640                         int const next = lex.getInteger();
 641                         FontState const misc = FontState(next);
 642
 643                         if (token == "emph")
 644                                 bits_.setEmph(misc);
 645                         else if (token == "underbar")
 646                                 bits_.setUnderbar(misc);
 647                         else if (token == "strikeout")
 648                                 bits_.setStrikeout(misc);
 649                         else if (token == "xout")
 650                                 bits_.setXout(misc);
 651                         else if (token == "uuline")
 652                                 bits_.setUuline(misc);
 653                         else if (token == "uwave")
 654                                 bits_.setUwave(misc);
 655                         else if (token == "noun")
 656                                 bits_.setNoun(misc);
 657                         else if (token == "number")
 658                                 bits_.setNumber(misc);
 659                         else if (token == "nospellcheck")
 660                                 bits_.setNoSpellcheck(misc);
 661
 662                 } else if (token == "color") {
 663                         int const next = lex.getInteger();
 664                         bits_.setColor(ColorCode(next));
 665
 666                 /**
 667                 } else if (token == "background") {
 668                         int const next = lex.getInteger();
 669                         bits_.setBackground(ColorCode(next));
 670                 */
 671
 672                 } else if (token == "language") {
 673                         string const next = lex.getString();
 674                         setLanguage(languages.getLanguage(next));
 675
 676                 } else if (token == "toggleall") {
 677                         toggle = lex.getBool();
 678
 679                 } else {
 680                         // Unrecognised token
 681                         break;
 682                 }
 683
 684                 ++nset;
 685         }
 686         return (nset > 0);
 687 }
 688
 689
 690 void Font::validate(LaTeXFeatures & features) const
 691 {
 692         BufferParams const & bparams = features.bufferParams();
 693         Language const * doc_language = bparams.language;
 694
 695         if (bits_.noun() == FONT_ON) {
 696                 LYXERR(Debug::LATEX, "font.noun: " << bits_.noun());
 697                 features.require("noun");
 698                 LYXERR(Debug::LATEX, "Noun enabled. Font: " << to_utf8(stateText()));
 699         }
 700         if (bits_.underbar() == FONT_ON) {
 701                 LYXERR(Debug::LATEX, "font.underline: " << bits_.underbar());
 702                 features.require("ulem");
 703                 LYXERR(Debug::LATEX, "Underline enabled. Font: " << to_utf8(stateText()));
 704         }
 705         if (bits_.strikeout() == FONT_ON) {
 706                 LYXERR(Debug::LATEX, "font.strikeout: " << bits_.strikeout());
 707                 features.require("ulem");
 708                 LYXERR(Debug::LATEX, "Strike out enabled. Font: " << to_utf8(stateText()));
 709         }
 710         if (bits_.xout() == FONT_ON) {
 711                 LYXERR(Debug::LATEX, "font.xout: " << bits_.xout());
 712                 features.require("ulem");
 713                 LYXERR(Debug::LATEX, "Cross out enabled. Font: " << to_utf8(stateText()));
 714         }
 715         if (bits_.uuline() == FONT_ON) {
 716                 LYXERR(Debug::LATEX, "font.uuline: " << bits_.uuline());
 717                 features.require("ulem");
 718                 LYXERR(Debug::LATEX, "Double underline enabled. Font: " << to_utf8(stateText()));
 719         }
 720         if (bits_.uwave() == FONT_ON) {
 721                 LYXERR(Debug::LATEX, "font.uwave: " << bits_.uwave());
 722                 features.require("ulem");
 723                 LYXERR(Debug::LATEX, "Wavy underline enabled. Font: " << to_utf8(stateText()));
 724         }
 725         switch (bits_.color()) {
 726                 case Color_none:
 727                 case Color_inherit:
 728                 case Color_ignore:
 729                         // probably we should put here all interface colors used for
 730                         // font displaying! For now I just add this ones I know of (Jug)
 731                 case Color_latex:
 732                 case Color_notelabel:
 733                         break;
 734                 case Color_brown:
 735                 case Color_darkgray:
 736                 case Color_gray:
 737                 case Color_lightgray:
 738                 case Color_lime:
 739                 case Color_olive:
 740                 case Color_orange:
 741                 case Color_pink:
 742                 case Color_purple:
 743                 case Color_teal:
 744                 case Color_violet:
 745                         features.require("xcolor");
 746                         break;
 747                 default:
 748                         features.require("color");
 749                         LYXERR(Debug::LATEX, "Color enabled. Font: " << to_utf8(stateText()));
 750         }
 751
 752         // FIXME: Do something for background and soul package?
 753
 754         if (((features.usePolyglossia() && lang_->polyglossia() != doc_language->polyglossia())
 755              || (features.useBabel() && lang_->babel() != doc_language->babel())
 756              || (doc_language->encoding()->package() == Encoding::CJK && lang_ != doc_language))
 757             && lang_ != ignore_language
 758             && lang_ != latex_language)
 759         {
 760                 features.useLanguage(lang_);
 761                 LYXERR(Debug::LATEX, "Found language " << lang_->lang());
 762         }
 763 }
 764
 765
 766 ostream & operator<<(ostream & os, FontState fms)
 767 {
 768         return os << int(fms);
 769 }
 770
 771
 772 ostream & operator<<(ostream & os, FontInfo const & f)
 773 {
 774         return os << "font:"
 775                 << " family " << f.family()
 776                 << " series " << f.series()
 777                 << " shape " << f.shape()
 778                 << " size " << f.size()
 779                 << " style " << f.style()
 780                 << " color " << f.color()
 781                 // FIXME: uncomment this when we support background.
 782                 //<< " background " << f.background()
 783                 << " emph " << f.emph()
 784                 << " underbar " << f.underbar()
 785                 << " strikeout " << f.strikeout()
 786                 << " xout " << f.xout()
 787                 << " uuline " << f.uuline()
 788                 << " uwave " << f.uwave()
 789                 << " noun " << f.noun()
 790                 << " number " << f.number()
 791                 << " nospellcheck " << f.nospellcheck();
 792 }
 793
 794
 795 ostream & operator<<(ostream & os, Font const & font)
 796 {
 797         return os << font.bits_
 798                 << " lang: " << (font.lang_ ? font.lang_->lang() : nullptr);
 799 }
 800
 801
 802 } // namespace lyx