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
  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         FontInfo f = bits_;
 351         f.reduce(base.bits_);
 352         FontInfo p = bits_;
 353         p.reduce(prev.bits_);
 354
 355         if (f.family() != INHERIT_FAMILY) {
 356                 os << '\\'
 357                    << LaTeXFamilyNames[f.family()]
 358                    << '{';
 359                 count += strlen(LaTeXFamilyNames[f.family()]) + 2;
 360                 env = true; //We have opened a new environment
 361         }
 362         if (f.series() != INHERIT_SERIES) {
 363                 os << '\\'
 364                    << LaTeXSeriesNames[f.series()]
 365                    << '{';
 366                 count += strlen(LaTeXSeriesNames[f.series()]) + 2;
 367                 env = true; //We have opened a new environment
 368         }
 369         if (f.shape() != INHERIT_SHAPE) {
 370                 os << '\\'
 371                    << LaTeXShapeNames[f.shape()]
 372                    << '{';
 373                 count += strlen(LaTeXShapeNames[f.shape()]) + 2;
 374                 env = true; //We have opened a new environment
 375         }
 376         if (f.color() != Color_inherit && f.color() != Color_ignore) {
 377                 if (f.color() == Color_none && p.color() != Color_none) {
 378                         // Color none: Close previous color, if any
 379                         os << '}';
 380                         ++count;
 381                 } else if (f.color() != Color_none) {
 382                         os << "\\textcolor{"
 383                            << from_ascii(lcolor.getLaTeXName(f.color()))
 384                            << "}{";
 385                         count += lcolor.getLaTeXName(f.color()).length() + 13;
 386                 }
 387                 env = true; //We have opened a new environment
 388         }
 389         // FIXME: uncomment this when we support background.
 390         /*
 391         if (f.background() != Color_inherit && f.background() != Color_ignore) {
 392                 os << "\\textcolor{"
 393                    << from_ascii(lcolor.getLaTeXName(f.background()))
 394                    << "}{";
 395                 count += lcolor.getLaTeXName(f.background()).length() + 13;
 396                 env = true; //We have opened a new environment
 397         }
 398         */
 399         // If the current language is Hebrew, Arabic, or Farsi
 400         // the numbers are written Left-to-Right. ArabTeX package
 401         // and bidi (polyglossia) reorder the number automatically
 402         // but the packages used for Hebrew and Farsi (Arabi) do not.
 403         if (!runparams.use_polyglossia
 404             && !runparams.pass_thru
 405             && bits_.number() == FONT_ON
 406             && prev.fontInfo().number() != FONT_ON
 407             && (language()->lang() == "hebrew"
 408                 || language()->lang() == "farsi"
 409                 || language()->lang() == "arabic_arabi")) {
 410                 os << "{\\beginL ";
 411                 count += 9;
 412         }
 413         if (f.emph() == FONT_ON) {
 414                 os << "\\emph{";
 415                 count += 6;
 416                 env = true; //We have opened a new environment
 417         }
 418         // \noun{} is a LyX special macro
 419         if (f.noun() == FONT_ON) {
 420                 os << "\\noun{";
 421                 count += 6;
 422                 env = true; //We have opened a new environment
 423         }
 424         if (f.size() != FONT_SIZE_INHERIT) {
 425                 // If we didn't open an environment above, we open one here
 426                 if (!env) {
 427                         os << '{';
 428                         ++count;
 429                 }
 430                 os << '\\'
 431                    << LaTeXSizeNames[f.size()]
 432                    << "{}";
 433                 count += strlen(LaTeXSizeNames[f.size()]) + 3;
 434         }
 435         // The ulem commands need to be on the deepest nesting level
 436         // because ulem puts every nested group or macro in a box,
 437         // which prevents linebreaks (#8424, #8733)
 438         if (f.underbar() == FONT_ON) {
 439                 os << "\\uline{";
 440                 count += 10;
 441                 ++runparams.inulemcmd;
 442         }
 443         if (f.uuline() == FONT_ON) {
 444                 os << "\\uuline{";
 445                 count += 11;
 446                 ++runparams.inulemcmd;
 447         }
 448         if (f.strikeout() == FONT_ON) {
 449                 os << "\\sout{";
 450                 count += 9;
 451                 ++runparams.inulemcmd;
 452         }
 453         if (f.xout() == FONT_ON) {
 454                 os << "\\xout{";
 455                 count += 9;
 456                 ++runparams.inulemcmd;
 457         }
 458         if (f.uwave() == FONT_ON) {
 459                 if (runparams.inulemcmd) {
 460                         // needed with nested uwave in xout
 461                         // see https://tex.stackexchange.com/a/263042
 462                         os << "\\ULdepth=1000pt";
 463                         count += 15;
 464                 }
 465                 os << "\\uwave{";
 466                 count += 10;
 467                 ++runparams.inulemcmd;
 468         }
 469         return count;
 470 }
 471
 472
 473 /// Writes ending block of LaTeX needed to close use of this font
 474 // Returns number of chars written
 475 // This one corresponds to latexWriteStartChanges(). (Asger)
 476 int Font::latexWriteEndChanges(otexstream & os, BufferParams const & bparams,
 477                                   OutputParams const & runparams,
 478                                   Font const & base,
 479                                   Font const & next,
 480                                   bool & needPar,
 481                                   bool const & closeLanguage) const
 482 {
 483         int count = 0;
 484         bool env = false;
 485
 486         // reduce the current font to changes against the base
 487         // font (of the layout). We use a temporary for this to
 488         // avoid changing this font instance, as that would break
 489         FontInfo f = bits_;
 490         f.reduce(base.bits_);
 491
 492         if (f.family() != INHERIT_FAMILY) {
 493                 os << '}';
 494                 ++count;
 495                 env = true; // Size change need not bother about closing env.
 496         }
 497         if (f.series() != INHERIT_SERIES) {
 498                 os << '}';
 499                 ++count;
 500                 env = true; // Size change need not bother about closing env.
 501         }
 502         if (f.shape() != INHERIT_SHAPE) {
 503                 os << '}';
 504                 ++count;
 505                 env = true; // Size change need not bother about closing env.
 506         }
 507         if (f.color() != Color_inherit && f.color() != Color_ignore && f.color() != Color_none) {
 508                 os << '}';
 509                 ++count;
 510                 env = true; // Size change need not bother about closing env.
 511         }
 512         if (f.emph() == FONT_ON) {
 513                 os << '}';
 514                 ++count;
 515                 env = true; // Size change need not bother about closing env.
 516         }
 517         if (f.noun() == FONT_ON) {
 518                 os << '}';
 519                 ++count;
 520                 env = true; // Size change need not bother about closing env.
 521         }
 522         if (f.size() != FONT_SIZE_INHERIT) {
 523                 // We only have to close if only size changed
 524                 if (!env) {
 525                         if (needPar && !closeLanguage) {
 526                                 os << "\\par";
 527                                 count += 4;
 528                                 needPar = false;
 529                         }
 530                         os << '}';
 531                         ++count;
 532                 }
 533         }
 534         if (f.underbar() == FONT_ON) {
 535                 os << '}';
 536                 ++count;
 537                 --runparams.inulemcmd;
 538         }
 539         if (f.strikeout() == FONT_ON) {
 540                 os << '}';
 541                 ++count;
 542                 --runparams.inulemcmd;
 543         }
 544         if (f.xout() == FONT_ON) {
 545                 os << '}';
 546                 ++count;
 547                 --runparams.inulemcmd;
 548         }
 549         if (f.uuline() == FONT_ON) {
 550                 os << '}';
 551                 ++count;
 552                 --runparams.inulemcmd;
 553         }
 554         if (f.uwave() == FONT_ON) {
 555                 os << '}';
 556                 ++count;
 557                 --runparams.inulemcmd;
 558         }
 559
 560         // If the current language is Hebrew, Arabic, or Farsi
 561         // the numbers are written Left-to-Right. ArabTeX package
 562         // and bidi (polyglossia) reorder the number automatically
 563         // but the packages used for Hebrew and Farsi (Arabi) do not.
 564         if (!runparams.use_polyglossia
 565             && !runparams.pass_thru
 566             && bits_.number() == FONT_ON
 567             && next.fontInfo().number() != FONT_ON
 568             && (language()->lang() == "hebrew"
 569                 || language()->lang() == "farsi"
 570                 || language()->lang() == "arabic_arabi")) {
 571                 os << "\\endL}";
 572                 count += 6;
 573         }
 574
 575         if (open_encoding_) {
 576                 // We need to close the encoding even if it does not change
 577                 // to do correct environment nesting
 578                 Encoding const * const ascii = encodings.fromLyXName("ascii");
 579                 pair<bool, int> const c = switchEncoding(os.os(), bparams,
 580                                 runparams, *ascii);
 581                 LATTEST(c.first);
 582                 count += c.second;
 583                 runparams.encoding = ascii;
 584                 open_encoding_ = false;
 585         }
 586
 587         if (closeLanguage
 588             && language() != base.language() && language() != next.language()
 589             && language()->encoding()->package() != Encoding::CJK) {
 590                 os << '}';
 591                 ++count;
 592                 bool const using_begin_end =
 593                         runparams.use_polyglossia ||
 594                                 !lyxrc.language_command_end.empty();
 595                 if (using_begin_end)
 596                         popLanguageName();
 597         }
 598
 599         return count;
 600 }
 601
 602
 603 string Font::toString(bool const toggle) const
 604 {
 605         string const lang = (language() == reset_language)
 606                 ? "reset" : language()->lang();
 607
 608         ostringstream os;
 609         os << "family " << bits_.family() << '\n'
 610            << "series " << bits_.series() << '\n'
 611            << "shape " << bits_.shape() << '\n'
 612            << "size " << bits_.size() << '\n'
 613            << "emph " << bits_.emph() << '\n'
 614            << "underbar " << bits_.underbar() << '\n'
 615            << "strikeout " << bits_.strikeout() << '\n'
 616            << "xout " << bits_.xout() << '\n'
 617            << "uuline " << bits_.uuline() << '\n'
 618            << "uwave " << bits_.uwave() << '\n'
 619            << "noun " << bits_.noun() << '\n'
 620            << "number " << bits_.number() << '\n'
 621            << "color " << bits_.color() << '\n'
 622            << "language " << lang << '\n'
 623            << "toggleall " << convert<string>(toggle);
 624         return os.str();
 625 }
 626
 627
 628 bool Font::fromString(string const & data, bool & toggle)
 629 {
 630         istringstream is(data);
 631         Lexer lex;
 632         lex.setStream(is);
 633
 634         int nset = 0;
 635         while (lex.isOK()) {
 636                 string token;
 637                 if (lex.next())
 638                         token = lex.getString();
 639
 640                 if (token.empty() || !lex.next())
 641                         break;
 642
 643                 if (token == "family") {
 644                         int const next = lex.getInteger();
 645                         bits_.setFamily(FontFamily(next));
 646
 647                 } else if (token == "series") {
 648                         int const next = lex.getInteger();
 649                         bits_.setSeries(FontSeries(next));
 650
 651                 } else if (token == "shape") {
 652                         int const next = lex.getInteger();
 653                         bits_.setShape(FontShape(next));
 654
 655                 } else if (token == "size") {
 656                         int const next = lex.getInteger();
 657                         bits_.setSize(FontSize(next));
 658
 659                 } else if (token == "emph" || token == "underbar"
 660                         || token == "noun" || token == "number"
 661                         || token == "uuline" || token == "uwave"
 662                         || token == "strikeout" || token == "xout") {
 663
 664                         int const next = lex.getInteger();
 665                         FontState const misc = FontState(next);
 666
 667                         if (token == "emph")
 668                                 bits_.setEmph(misc);
 669                         else if (token == "underbar")
 670                                 bits_.setUnderbar(misc);
 671                         else if (token == "strikeout")
 672                                 bits_.setStrikeout(misc);
 673                         else if (token == "xout")
 674                                 bits_.setXout(misc);
 675                         else if (token == "uuline")
 676                                 bits_.setUuline(misc);
 677                         else if (token == "uwave")
 678                                 bits_.setUwave(misc);
 679                         else if (token == "noun")
 680                                 bits_.setNoun(misc);
 681                         else if (token == "number")
 682                                 bits_.setNumber(misc);
 683
 684                 } else if (token == "color") {
 685                         int const next = lex.getInteger();
 686                         bits_.setColor(ColorCode(next));
 687
 688                 /**
 689                 } else if (token == "background") {
 690                         int const next = lex.getInteger();
 691                         bits_.setBackground(ColorCode(next));
 692                 */
 693
 694                 } else if (token == "language") {
 695                         string const next = lex.getString();
 696                         setLanguage(languages.getLanguage(next));
 697
 698                 } else if (token == "toggleall") {
 699                         toggle = lex.getBool();
 700
 701                 } else {
 702                         // Unrecognised token
 703                         break;
 704                 }
 705
 706                 ++nset;
 707         }
 708         return (nset > 0);
 709 }
 710
 711
 712 void Font::validate(LaTeXFeatures & features) const
 713 {
 714         BufferParams const & bparams = features.bufferParams();
 715         Language const * doc_language = bparams.language;
 716
 717         if (bits_.noun() == FONT_ON) {
 718                 LYXERR(Debug::LATEX, "font.noun: " << bits_.noun());
 719                 features.require("noun");
 720                 LYXERR(Debug::LATEX, "Noun enabled. Font: " << to_utf8(stateText(0)));
 721         }
 722         if (bits_.underbar() == FONT_ON) {
 723                 LYXERR(Debug::LATEX, "font.underline: " << bits_.underbar());
 724                 features.require("ulem");
 725                 LYXERR(Debug::LATEX, "Underline enabled. Font: " << to_utf8(stateText(0)));
 726         }
 727         if (bits_.strikeout() == FONT_ON) {
 728                 LYXERR(Debug::LATEX, "font.strikeout: " << bits_.strikeout());
 729                 features.require("ulem");
 730                 LYXERR(Debug::LATEX, "Strike out enabled. Font: " << to_utf8(stateText(0)));
 731         }
 732         if (bits_.xout() == FONT_ON) {
 733                 LYXERR(Debug::LATEX, "font.xout: " << bits_.xout());
 734                 features.require("ulem");
 735                 LYXERR(Debug::LATEX, "Cross out enabled. Font: " << to_utf8(stateText(0)));
 736         }
 737         if (bits_.uuline() == FONT_ON) {
 738                 LYXERR(Debug::LATEX, "font.uuline: " << bits_.uuline());
 739                 features.require("ulem");
 740                 LYXERR(Debug::LATEX, "Double underline enabled. Font: " << to_utf8(stateText(0)));
 741         }
 742         if (bits_.uwave() == FONT_ON) {
 743                 LYXERR(Debug::LATEX, "font.uwave: " << bits_.uwave());
 744                 features.require("ulem");
 745                 LYXERR(Debug::LATEX, "Wavy underline enabled. Font: " << to_utf8(stateText(0)));
 746         }
 747         switch (bits_.color()) {
 748                 case Color_none:
 749                 case Color_inherit:
 750                 case Color_ignore:
 751                         // probably we should put here all interface colors used for
 752                         // font displaying! For now I just add this ones I know of (Jug)
 753                 case Color_latex:
 754                 case Color_notelabel:
 755                         break;
 756                 case Color_brown:
 757                 case Color_darkgray:
 758                 case Color_gray:
 759                 case Color_lightgray:
 760                 case Color_lime:
 761                 case Color_olive:
 762                 case Color_orange:
 763                 case Color_pink:
 764                 case Color_purple:
 765                 case Color_teal:
 766                 case Color_violet:
 767                         features.require("xcolor");
 768                         break;
 769                 default:
 770                         features.require("color");
 771                         LYXERR(Debug::LATEX, "Color enabled. Font: " << to_utf8(stateText(0)));
 772         }
 773
 774         // FIXME: Do something for background and soul package?
 775
 776         if (((features.usePolyglossia() && lang_->polyglossia() != doc_language->polyglossia())
 777              || (features.useBabel() && lang_->babel() != doc_language->babel())
 778              || (doc_language->encoding()->package() == Encoding::CJK && lang_ != doc_language))
 779             && lang_ != ignore_language
 780             && lang_ != latex_language)
 781         {
 782                 features.useLanguage(lang_);
 783                 LYXERR(Debug::LATEX, "Found language " << lang_->lang());
 784         }
 785 }
 786
 787
 788 ostream & operator<<(ostream & os, FontState fms)
 789 {
 790         return os << int(fms);
 791 }
 792
 793
 794 ostream & operator<<(ostream & os, FontInfo const & f)
 795 {
 796         return os << "font:"
 797                 << " family " << f.family()
 798                 << " series " << f.series()
 799                 << " shape " << f.shape()
 800                 << " size " << f.size()
 801                 << " color " << f.color()
 802                 // FIXME: uncomment this when we support background.
 803                 //<< " background " << f.background()
 804                 << " emph " << f.emph()
 805                 << " underbar " << f.underbar()
 806                 << " strikeout " << f.strikeout()
 807                 << " xout " << f.xout()
 808                 << " uuline " << f.uuline()
 809                 << " uwave " << f.uwave()
 810                 << " noun " << f.noun()
 811                 << " number " << f.number();
 812 }
 813
 814
 815 ostream & operator<<(ostream & os, Font const & font)
 816 {
 817         return os << font.bits_
 818                 << " lang: " << (font.lang_ ? font.lang_->lang() : 0);
 819 }
 820
 821
 822 } // namespace lyx