src/lyxfont.C

   1 /* This file is part of
   2  * ======================================================
   3  *
   4  *           LyX, The Document Processor
   5  *
   6  *           Copyright 1995 Matthias Ettrich
   7  *           Copyright 1995-2001 The LyX Team.
   8  *
   9  * ====================================================== */
  10
  11 #include <config.h>
  12 #include <clocale>
  13 #include <cctype>
  14
  15 #ifdef __GNUG__
  16 #pragma implementation
  17 #endif
  18
  19
  20 #include "gettext.h"
  21 #include "lyxfont.h"
  22 #include "debug.h"
  23 #include "lyxrc.h"
  24 #include "lyxlex.h"
  25 #include "language.h"
  26 #include "support/lstrings.h"
  27 #include "bufferparams.h" // stateText
  28
  29 #include "BoostFormat.h"
  30
  31 using std::ostream;
  32 using std::endl;
  33
  34 #ifndef CXX_GLOBAL_CSTD
  35 using std::strlen;
  36 #endif
  37
  38 //
  39 // Names for the GUI
  40 //
  41
  42 namespace {
  43
  44 char const * GUIFamilyNames[LyXFont::NUM_FAMILIES + 2 /* default & error */] =
  45 { N_("Roman"), N_("Sans serif"), N_("Typewriter"), N_("Symbol"),
  46   "cmr", "cmsy", "cmm", "cmex", "msa", "msb", "eufrak", "wasy",
  47   N_("Inherit"), N_("Ignore") };
  48
  49 char const * GUISeriesNames[4] =
  50 { N_("Medium"), N_("Bold"), N_("Inherit"), N_("Ignore") };
  51
  52 char const * GUIShapeNames[6] =
  53 { N_("Upright"), N_("Italic"), N_("Slanted"), N_("Smallcaps"), N_("Inherit"),
  54   N_("Ignore") };
  55
  56 char const * GUISizeNames[14] =
  57 { N_("Tiny"), N_("Smallest"), N_("Smaller"), N_("Small"), N_("Normal"), N_("Large"),
  58   N_("Larger"), N_("Largest"), N_("Huge"), N_("Huger"), N_("Increase"), N_("Decrease"),
  59   N_("Inherit"), N_("Ignore") };
  60
  61 char const * GUIMiscNames[5] =
  62 { N_("Off"), N_("On"), N_("Toggle"), N_("Inherit"), N_("Ignore") };
  63
  64
  65 //
  66 // Strings used to read and write .lyx format files
  67 //
  68 char const * LyXFamilyNames[LyXFont::NUM_FAMILIES + 2 /* default & error */] =
  69 { "roman", "sans", "typewriter", "symbol",
  70   "cmr", "cmsy", "cmm", "cmex", "msa", "msb", "eufrak", "wasy",
  71   "default", "error" };
  72
  73 char const * LyXSeriesNames[4] =
  74 { "medium", "bold", "default", "error" };
  75
  76 char const * LyXShapeNames[6] =
  77 { "up", "italic", "slanted", "smallcaps", "default", "error" };
  78
  79 char const * LyXSizeNames[14] =
  80 { "tiny", "scriptsize", "footnotesize", "small", "normal", "large",
  81   "larger", "largest", "huge", "giant",
  82   "increase", "decrease", "default", "error" };
  83
  84 char const * LyXMiscNames[5] =
  85 { "off", "on", "toggle", "default", "error" };
  86
  87 //
  88 // Strings used to write LaTeX files
  89 //
  90 char const * LaTeXFamilyNames[6] =
  91 { "textrm", "textsf", "texttt", "error1", "error2", "error3" };
  92
  93 char const * LaTeXSeriesNames[4] =
  94 { "textmd", "textbf", "error4", "error5" };
  95
  96 char const * LaTeXShapeNames[6] =
  97 { "textup", "textit", "textsl", "textsc", "error6", "error7" };
  98
  99 char const * LaTeXSizeNames[14] =
 100 { "tiny", "scriptsize", "footnotesize", "small", "normalsize", "large",
 101   "Large", "LARGE", "huge", "Huge", "error8", "error9", "error10", "error11" };
 102
 103 } // namespace anon
 104
 105
 106 // Initialize static member
 107 LyXFont::FontBits LyXFont::sane = {
 108         ROMAN_FAMILY,
 109         MEDIUM_SERIES,
 110         UP_SHAPE,
 111         SIZE_NORMAL,
 112         LColor::none,
 113         OFF,
 114         OFF,
 115         OFF,
 116         OFF };
 117
 118 // Initialize static member
 119 LyXFont::FontBits LyXFont::inherit = {
 120         INHERIT_FAMILY,
 121         INHERIT_SERIES,
 122         INHERIT_SHAPE,
 123         INHERIT_SIZE,
 124         LColor::inherit,
 125         INHERIT,
 126         INHERIT,
 127         INHERIT,
 128         OFF };
 129
 130 // Initialize static member
 131 LyXFont::FontBits LyXFont::ignore = {
 132         IGNORE_FAMILY,
 133         IGNORE_SERIES,
 134         IGNORE_SHAPE,
 135         IGNORE_SIZE,
 136         LColor::ignore,
 137         IGNORE,
 138         IGNORE,
 139         IGNORE,
 140         IGNORE };
 141
 142
 143 bool operator==(LyXFont::FontBits const & lhs,
 144                 LyXFont::FontBits const & rhs)
 145 {
 146         return lhs.family == rhs.family &&
 147                 lhs.series == rhs.series &&
 148                 lhs.shape == rhs.shape &&
 149                 lhs.size == rhs.size &&
 150                 lhs.color == rhs.color &&
 151                 lhs.emph == rhs.emph &&
 152                 lhs.underbar == rhs.underbar &&
 153                 lhs.noun == rhs.noun &&
 154                 lhs.number == rhs.number;
 155 }
 156
 157
 158 LyXFont::LyXFont()
 159         : bits(sane), lang(default_language)
 160 {}
 161
 162
 163 LyXFont::LyXFont(LyXFont::FONT_INIT1)
 164         : bits(inherit), lang(default_language)
 165 {}
 166
 167
 168 LyXFont::LyXFont(LyXFont::FONT_INIT2)
 169         : bits(ignore), lang(ignore_language)
 170 {}
 171
 172
 173 LyXFont::LyXFont(LyXFont::FONT_INIT3)
 174         : bits(sane), lang(default_language)
 175 {}
 176
 177
 178 LyXFont::LyXFont(LyXFont::FONT_INIT1, Language const * l)
 179         : bits(inherit), lang(l)
 180 {}
 181
 182
 183 LyXFont::LyXFont(LyXFont::FONT_INIT2, Language const * l)
 184         : bits(ignore), lang(l)
 185 {}
 186
 187
 188 LyXFont::LyXFont(LyXFont::FONT_INIT3, Language const * l)
 189         : bits(sane), lang(l)
 190 {}
 191
 192
 193 LyXFont::FONT_MISC_STATE LyXFont::underbar() const
 194 {
 195         return bits.underbar;
 196 }
 197
 198
 199 LColor::color LyXFont::color() const
 200 {
 201         return bits.color;
 202 }
 203
 204
 205 Language const * LyXFont::language() const
 206 {
 207         return lang;
 208 }
 209
 210
 211 LyXFont::FONT_MISC_STATE LyXFont::number() const
 212 {
 213         return bits.number;
 214 }
 215
 216
 217 bool LyXFont::isRightToLeft() const
 218 {
 219         return lang->RightToLeft();
 220 }
 221
 222
 223 bool LyXFont::isVisibleRightToLeft() const
 224 {
 225         return (lang->RightToLeft() &&
 226                 number() != ON);
 227 }
 228
 229
 230 LyXFont & LyXFont::setFamily(LyXFont::FONT_FAMILY f)
 231 {
 232         bits.family = f;
 233         return *this;
 234 }
 235
 236
 237 LyXFont & LyXFont::setSeries(LyXFont::FONT_SERIES s)
 238 {
 239         bits.series = s;
 240         return *this;
 241 }
 242
 243
 244 LyXFont & LyXFont::setShape(LyXFont::FONT_SHAPE s)
 245 {
 246         bits.shape = s;
 247         return *this;
 248 }
 249
 250
 251 LyXFont & LyXFont::setSize(LyXFont::FONT_SIZE s)
 252 {
 253         bits.size = s;
 254         return *this;
 255 }
 256
 257
 258 LyXFont & LyXFont::setEmph(LyXFont::FONT_MISC_STATE e)
 259 {
 260         bits.emph = e;
 261         return *this;
 262 }
 263
 264
 265 LyXFont & LyXFont::setUnderbar(LyXFont::FONT_MISC_STATE u)
 266 {
 267         bits.underbar = u;
 268         return *this;
 269 }
 270
 271
 272 LyXFont & LyXFont::setNoun(LyXFont::FONT_MISC_STATE n)
 273 {
 274         bits.noun = n;
 275         return *this;
 276 }
 277
 278
 279 LyXFont & LyXFont::setColor(LColor::color c)
 280 {
 281         bits.color = c;
 282         return *this;
 283 }
 284
 285
 286 LyXFont & LyXFont::setLanguage(Language const * l)
 287 {
 288         lang = l;
 289         return *this;
 290 }
 291
 292
 293 LyXFont & LyXFont::setNumber(LyXFont::FONT_MISC_STATE n)
 294 {
 295         bits.number = n;
 296         return *this;
 297 }
 298
 299
 300 /// Decreases font size by one
 301 LyXFont & LyXFont::decSize()
 302 {
 303         switch (size()) {
 304         case SIZE_HUGER:        setSize(SIZE_HUGE);     break;
 305         case SIZE_HUGE:         setSize(SIZE_LARGEST);  break;
 306         case SIZE_LARGEST:      setSize(SIZE_LARGER);   break;
 307         case SIZE_LARGER:       setSize(SIZE_LARGE);    break;
 308         case SIZE_LARGE:        setSize(SIZE_NORMAL);   break;
 309         case SIZE_NORMAL:       setSize(SIZE_SMALL);    break;
 310         case SIZE_SMALL:        setSize(SIZE_FOOTNOTE); break;
 311         case SIZE_FOOTNOTE:     setSize(SIZE_SCRIPT);   break;
 312         case SIZE_SCRIPT:       setSize(SIZE_TINY);     break;
 313         case SIZE_TINY:         break;
 314         case INCREASE_SIZE:
 315                 lyxerr << "Can't LyXFont::decSize on INCREASE_SIZE" << endl;
 316                 break;
 317         case DECREASE_SIZE:
 318                 lyxerr <<"Can't LyXFont::decSize on DECREASE_SIZE" << endl;
 319                 break;
 320         case INHERIT_SIZE:
 321                 lyxerr <<"Can't LyXFont::decSize on INHERIT_SIZE" << endl;
 322                 break;
 323         case IGNORE_SIZE:
 324                 lyxerr <<"Can't LyXFont::decSize on IGNORE_SIZE" << endl;
 325                 break;
 326         }
 327         return *this;
 328 }
 329
 330
 331 /// Increases font size by one
 332 LyXFont & LyXFont::incSize()
 333 {
 334         switch (size()) {
 335         case SIZE_HUGER:        break;
 336         case SIZE_HUGE:         setSize(SIZE_HUGER);    break;
 337         case SIZE_LARGEST:      setSize(SIZE_HUGE);     break;
 338         case SIZE_LARGER:       setSize(SIZE_LARGEST);  break;
 339         case SIZE_LARGE:        setSize(SIZE_LARGER);   break;
 340         case SIZE_NORMAL:       setSize(SIZE_LARGE);    break;
 341         case SIZE_SMALL:        setSize(SIZE_NORMAL);   break;
 342         case SIZE_FOOTNOTE:     setSize(SIZE_SMALL);    break;
 343         case SIZE_SCRIPT:       setSize(SIZE_FOOTNOTE); break;
 344         case SIZE_TINY:         setSize(SIZE_SCRIPT);   break;
 345         case INCREASE_SIZE:
 346                 lyxerr <<"Can't LyXFont::incSize on INCREASE_SIZE" << endl;
 347                 break;
 348         case DECREASE_SIZE:
 349                 lyxerr <<"Can't LyXFont::incSize on DECREASE_SIZE" << endl;
 350                 break;
 351         case INHERIT_SIZE:
 352                 lyxerr <<"Can't LyXFont::incSize on INHERIT_SIZE" << endl;
 353                 break;
 354         case IGNORE_SIZE:
 355                 lyxerr <<"Can't LyXFont::incSize on IGNORE_SIZE" << endl;
 356                 break;
 357         }
 358         return *this;
 359 }
 360
 361
 362 /// Updates a misc setting according to request
 363 LyXFont::FONT_MISC_STATE LyXFont::setMisc(FONT_MISC_STATE newfont,
 364                                           FONT_MISC_STATE org)
 365 {
 366         if (newfont == TOGGLE) {
 367                 if (org == ON)
 368                         return OFF;
 369                 else if (org == OFF)
 370                         return ON;
 371                 else {
 372                         lyxerr <<"LyXFont::setMisc: Need state"
 373                                 " ON or OFF to toggle. Setting to ON" << endl;
 374                         return ON;
 375                 }
 376         } else if (newfont == IGNORE)
 377                 return org;
 378         else
 379                 return newfont;
 380 }
 381
 382
 383 /// Updates font settings according to request
 384 void LyXFont::update(LyXFont const & newfont,
 385                      Language const * document_language,
 386                      bool toggleall)
 387 {
 388         if (newfont.family() == family() && toggleall)
 389                 setFamily(INHERIT_FAMILY); // toggle 'back'
 390         else if (newfont.family() != IGNORE_FAMILY)
 391                 setFamily(newfont.family());
 392         // else it's IGNORE_SHAPE
 393
 394         // "Old" behaviour: "Setting" bold will toggle bold on/off.
 395         switch (newfont.series()) {
 396         case BOLD_SERIES:
 397                 // We toggle...
 398                 if (series() == BOLD_SERIES && toggleall)
 399                         setSeries(MEDIUM_SERIES);
 400                 else
 401                         setSeries(BOLD_SERIES);
 402                 break;
 403         case MEDIUM_SERIES:
 404         case INHERIT_SERIES:
 405                 setSeries(newfont.series());
 406                 break;
 407         case IGNORE_SERIES:
 408                 break;
 409         }
 410
 411         if (newfont.shape() == shape() && toggleall)
 412                 setShape(INHERIT_SHAPE); // toggle 'back'
 413         else if (newfont.shape() != IGNORE_SHAPE)
 414                 setShape(newfont.shape());
 415         // else it's IGNORE_SHAPE
 416
 417         if (newfont.size() != IGNORE_SIZE) {
 418                 if (newfont.size() == INCREASE_SIZE)
 419                         incSize();
 420                 else if (newfont.size() == DECREASE_SIZE)
 421                         decSize();
 422                 else
 423                         setSize(newfont.size());
 424         }
 425
 426         setEmph(setMisc(newfont.emph(), emph()));
 427         setUnderbar(setMisc(newfont.underbar(), underbar()));
 428         setNoun(setMisc(newfont.noun(), noun()));
 429
 430         setNumber(setMisc(newfont.number(), number()));
 431         if (newfont.language() == language() && toggleall)
 432                 if (language() == document_language)
 433                         setLanguage(default_language);
 434                 else
 435                         setLanguage(document_language);
 436         else if (newfont.language() != ignore_language)
 437                 setLanguage(newfont.language());
 438
 439         if (newfont.color() == color() && toggleall)
 440                 setColor(LColor::inherit); // toggle 'back'
 441         else if (newfont.color() != LColor::ignore)
 442                 setColor(newfont.color());
 443 }
 444
 445
 446 /// Reduce font to fall back to template where possible
 447 void LyXFont::reduce(LyXFont const & tmplt)
 448 {
 449         if (family() == tmplt.family())
 450                 setFamily(INHERIT_FAMILY);
 451         if (series() == tmplt.series())
 452                 setSeries(INHERIT_SERIES);
 453         if (shape() == tmplt.shape())
 454                 setShape(INHERIT_SHAPE);
 455         if (size() == tmplt.size())
 456                 setSize(INHERIT_SIZE);
 457         if (emph() == tmplt.emph())
 458                 setEmph(INHERIT);
 459         if (underbar() == tmplt.underbar())
 460                 setUnderbar(INHERIT);
 461         if (noun() == tmplt.noun())
 462                 setNoun(INHERIT);
 463         if (color() == tmplt.color())
 464                 setColor(LColor::inherit);
 465 }
 466
 467
 468 /// Realize font from a template
 469 LyXFont & LyXFont::realize(LyXFont const & tmplt)
 470 {
 471         if (bits == inherit) {
 472                 bits = tmplt.bits;
 473                 return *this;
 474         }
 475
 476         if (bits.family == INHERIT_FAMILY) {
 477                 bits.family = tmplt.bits.family;
 478         }
 479         if (bits.series == INHERIT_SERIES) {
 480                 bits.series = tmplt.bits.series;
 481         }
 482         if (bits.shape == INHERIT_SHAPE) {
 483                 bits.shape = tmplt.bits.shape;
 484         }
 485         if (bits.size == INHERIT_SIZE) {
 486                 bits.size = tmplt.bits.size;
 487         }
 488         if (bits.emph == INHERIT) {
 489                 bits.emph = tmplt.bits.emph;
 490         }
 491         if (bits.underbar == INHERIT) {
 492                 bits.underbar = tmplt.bits.underbar;
 493         }
 494         if (bits.noun == INHERIT) {
 495                 bits.noun = tmplt.bits.noun;
 496         }
 497         if (bits.color == LColor::inherit) {
 498                 bits.color = tmplt.bits.color;
 499         }
 500         return *this;
 501 }
 502
 503
 504 /// Is font resolved?
 505 bool LyXFont::resolved() const
 506 {
 507         return (family() != INHERIT_FAMILY && series() != INHERIT_SERIES &&
 508                 shape() != INHERIT_SHAPE && size() != INHERIT_SIZE &&
 509                 emph() != INHERIT && underbar() != INHERIT &&
 510                 noun() != INHERIT &&
 511                 color() != LColor::inherit);
 512 }
 513
 514
 515 /// Build GUI description of font state
 516 string const LyXFont::stateText(BufferParams * params) const
 517 {
 518         ostringstream ost;
 519         if (family() != INHERIT_FAMILY)
 520                 ost << _(GUIFamilyNames[family()]) << ", ";
 521         if (series() != INHERIT_SERIES)
 522                 ost << _(GUISeriesNames[series()]) << ", ";
 523         if (shape() != INHERIT_SHAPE)
 524                 ost << _(GUIShapeNames[shape()]) << ", ";
 525         if (size() != INHERIT_SIZE)
 526                 ost << _(GUISizeNames[size()]) << ", ";
 527         if (color() != LColor::inherit)
 528                 ost << lcolor.getGUIName(color()) << ", ";
 529         if (emph() != INHERIT) {
 530 #if USE_BOOST_FORMAT
 531                 ost << boost::format(_("Emphasis %1$s, "))
 532                         % _(GUIMiscNames[emph()]);
 533 #else
 534                 ost << _("Emphasis ") << _(GUIMiscNames[emph()]) << ", ";
 535 #endif
 536         }
 537         if (underbar() != INHERIT) {
 538 #if USE_BOOST_FORMAT
 539                 ost << boost::format(_("Underline %1$s, "))
 540                         % _(GUIMiscNames[underbar()]);
 541 #else
 542                 ost << _("Underline ") << _(GUIMiscNames[underbar()]) << ", ";
 543 #endif
 544         }
 545         if (noun() != INHERIT) {
 546 #if USE_BOOST_FORMAT
 547                 ost << boost::format(_("Noun %1$s, "))
 548                         % _(GUIMiscNames[noun()]);
 549 #else
 550                 ost << _("Noun ") << _(GUIMiscNames[noun()]) << ", ";
 551 #endif
 552         }
 553         if (bits == inherit)
 554                 ost << _("Default") << ", ";
 555         if (!params || (language() != params->language)) {
 556 #if USE_BOOST_FORMAT
 557                 ost << boost::format(_("Language: %1$s, "))
 558                         % _(language()->display());
 559 #else
 560                 ost << _("Language: ") << _(language()->display()) << ", ";
 561 #endif
 562         }
 563         if (number() != OFF) {
 564 #if USE_BOOST_FORMAT
 565                 ost << boost::format(_("  Number %1$s"))
 566                         % _(GUIMiscNames[number()]);
 567 #else
 568                 ost << _("  Number ") << _(GUIMiscNames[number()]);
 569 #endif
 570         }
 571
 572         string const buf = rtrim(STRCONV(ost.str()), ", ");
 573         return buf;
 574 }
 575
 576
 577 // Set family according to lyx format string
 578 LyXFont & LyXFont::setLyXFamily(string const & fam)
 579 {
 580         string const s = ascii_lowercase(fam);
 581
 582         int i = 0;
 583         while (s != LyXFamilyNames[i] && LyXFamilyNames[i] != "error") ++i;
 584         if (s == LyXFamilyNames[i]) {
 585                 setFamily(LyXFont::FONT_FAMILY(i));
 586         } else
 587                 lyxerr << "LyXFont::setLyXFamily: Unknown family `"
 588                        << s << '\'' << endl;
 589         return *this;
 590 }
 591
 592
 593 // Set series according to lyx format string
 594 LyXFont & LyXFont::setLyXSeries(string const & ser)
 595 {
 596         string const s = ascii_lowercase(ser);
 597
 598         int i = 0;
 599         while (s != LyXSeriesNames[i] && LyXSeriesNames[i] != "error") ++i;
 600         if (s == LyXSeriesNames[i]) {
 601                 setSeries(LyXFont::FONT_SERIES(i));
 602         } else
 603                 lyxerr << "LyXFont::setLyXSeries: Unknown series `"
 604                        << s << '\'' << endl;
 605         return *this;
 606 }
 607
 608
 609 // Set shape according to lyx format string
 610 LyXFont & LyXFont::setLyXShape(string const & sha)
 611 {
 612         string const s = ascii_lowercase(sha);
 613
 614         int i = 0;
 615         while (s != LyXShapeNames[i] && LyXShapeNames[i] != "error") ++i;
 616         if (s == LyXShapeNames[i]) {
 617                 setShape(LyXFont::FONT_SHAPE(i));
 618         } else
 619                 lyxerr << "LyXFont::setLyXShape: Unknown shape `"
 620                        << s << '\'' << endl;
 621         return *this;
 622 }
 623
 624
 625 // Set size according to lyx format string
 626 LyXFont & LyXFont::setLyXSize(string const & siz)
 627 {
 628         string const s = ascii_lowercase(siz);
 629         int i = 0;
 630         while (s != LyXSizeNames[i] && LyXSizeNames[i] != "error") ++i;
 631         if (s == LyXSizeNames[i]) {
 632                 setSize(LyXFont::FONT_SIZE(i));
 633         } else
 634                 lyxerr << "LyXFont::setLyXSize: Unknown size `"
 635                        << s << '\'' << endl;
 636         return *this;
 637 }
 638
 639
 640 // Set size according to lyx format string
 641 LyXFont::FONT_MISC_STATE LyXFont::setLyXMisc(string const & siz)
 642 {
 643         string const s = ascii_lowercase(siz);
 644         int i = 0;
 645         while (s != LyXMiscNames[i] && LyXMiscNames[i] != "error") ++i;
 646         if (s == LyXMiscNames[i])
 647                 return FONT_MISC_STATE(i);
 648         lyxerr << "LyXFont::setLyXMisc: Unknown misc flag `"
 649                << s << '\'' << endl;
 650         return OFF;
 651 }
 652
 653
 654 /// Sets color after LyX text format
 655 LyXFont & LyXFont::setLyXColor(string const & col)
 656 {
 657         setColor(lcolor.getFromLyXName(col));
 658         return *this;
 659 }
 660
 661
 662 // Returns size in latex format
 663 string const LyXFont::latexSize() const
 664 {
 665         return LaTeXSizeNames[size()];
 666 }
 667
 668
 669 // Read a font definition from given file in lyx format
 670 // Used for layouts
 671 LyXFont & LyXFont::lyxRead(LyXLex & lex)
 672 {
 673         bool error = false;
 674         bool finished = false;
 675         while (!finished && lex.isOK() && !error) {
 676                 lex.next();
 677                 string const tok = ascii_lowercase(lex.getString());
 678
 679                 if (tok.empty()) {
 680                         continue;
 681                 } else if (tok == "endfont") {
 682                         finished = true;
 683                 } else if (tok == "family") {
 684                         lex.next();
 685                         string const ttok = lex.getString();
 686                         setLyXFamily(ttok);
 687                 } else if (tok == "series") {
 688                         lex.next();
 689                         string const ttok = lex.getString();
 690                         setLyXSeries(ttok);
 691                 } else if (tok == "shape") {
 692                         lex.next();
 693                         string const ttok = lex.getString();
 694                         setLyXShape(ttok);
 695                 } else if (tok == "size") {
 696                         lex.next();
 697                         string const ttok = lex.getString();
 698                         setLyXSize(ttok);
 699                 } else if (tok == "misc") {
 700                         lex.next();
 701                         string const ttok = ascii_lowercase(lex.getString());
 702
 703                         if (ttok == "no_bar") {
 704                                 setUnderbar(OFF);
 705                         } else if (ttok == "no_emph") {
 706                                 setEmph(OFF);
 707                         } else if (ttok == "no_noun") {
 708                                 setNoun(OFF);
 709                         } else if (ttok == "emph") {
 710                                 setEmph(ON);
 711                         } else if (ttok == "underbar") {
 712                                 setUnderbar(ON);
 713                         } else if (ttok == "noun") {
 714                                 setNoun(ON);
 715                         } else {
 716                                 lex.printError("Illegal misc type `$$Token´");
 717                         }
 718                 } else if (tok == "color") {
 719                         lex.next();
 720                         string const ttok = lex.getString();
 721                         setLyXColor(ttok);
 722                 } else {
 723                         lex.printError("Unknown tag `$$Token'");
 724                         error = true;
 725                 }
 726         }
 727         return *this;
 728 }
 729
 730
 731 /// Writes the changes from this font to orgfont in .lyx format in file
 732 void LyXFont::lyxWriteChanges(LyXFont const & orgfont,
 733                               ostream & os) const
 734 {
 735         os << "\n";
 736         if (orgfont.family() != family()) {
 737                 os << "\\family " << LyXFamilyNames[family()] << " \n";
 738         }
 739         if (orgfont.series() != series()) {
 740                 os << "\\series " << LyXSeriesNames[series()] << " \n";
 741         }
 742         if (orgfont.shape() != shape()) {
 743                 os << "\\shape " << LyXShapeNames[shape()] << " \n";
 744         }
 745         if (orgfont.size() != size()) {
 746                 os << "\\size " << LyXSizeNames[size()] << " \n";
 747         }
 748         if (orgfont.emph() != emph()) {
 749                 os << "\\emph " << LyXMiscNames[emph()] << " \n";
 750         }
 751         if (orgfont.number() != number()) {
 752                 os << "\\numeric " << LyXMiscNames[number()] << " \n";
 753         }
 754         if (orgfont.underbar() != underbar()) {
 755                 // This is only for backwards compatibility
 756                 switch (underbar()) {
 757                 case OFF:       os << "\\bar no \n"; break;
 758                 case ON:        os << "\\bar under \n"; break;
 759                 case TOGGLE:    lyxerr << "LyXFont::lyxWriteFontChanges: "
 760                                         "TOGGLE should not appear here!"
 761                                        << endl;
 762                 break;
 763                 case INHERIT:   os << "\\bar default \n"; break;
 764                 case IGNORE:    lyxerr << "LyXFont::lyxWriteFontChanges: "
 765                                         "IGNORE should not appear here!"
 766                                        << endl;
 767                 break;
 768                 }
 769         }
 770         if (orgfont.noun() != noun()) {
 771                 os << "\\noun " << LyXMiscNames[noun()] << " \n";
 772         }
 773         if (orgfont.color() != color()) {
 774                 // To make us file compatible with older
 775                 // lyx versions we emit "default" instead
 776                 // of "inherit"
 777                 string col_str(lcolor.getLyXName(color()));
 778                 if (col_str == "inherit") col_str = "default";
 779                 os << "\\color " << col_str << "\n";
 780         }
 781         if (orgfont.language() != language()) {
 782                 if (language())
 783                         os << "\\lang " << language()->lang() << "\n";
 784                 else
 785                         os << "\\lang unknown\n";
 786         }
 787 }
 788
 789
 790 /// Writes the head of the LaTeX needed to impose this font
 791 // Returns number of chars written.
 792 int LyXFont::latexWriteStartChanges(ostream & os, LyXFont const & base,
 793                                     LyXFont const & prev) const
 794 {
 795         int count = 0;
 796         bool env = false;
 797
 798         if (language()->babel() != base.language()->babel() &&
 799             language() != prev.language()) {
 800                 if (isRightToLeft() != prev.isRightToLeft()) {
 801                         if (isRightToLeft()) {
 802                                 os << "\\R{";
 803                                 count += 3;
 804                         } else {
 805                                 os << "\\L{";
 806                                 count += 3;
 807                         }
 808                 } else {
 809                         string const tmp =
 810                                 subst(lyxrc.language_command_local,
 811                                       "$$lang", language()->babel());
 812                         os << tmp;
 813                         count += tmp.length();
 814                 }
 815         }
 816
 817         if (number() == ON && prev.number() != ON &&
 818             language()->lang() == "hebrew") {
 819                 os << "{\\beginL ";
 820                 count += 9;
 821         }
 822
 823         LyXFont f = *this;
 824         f.reduce(base);
 825
 826         if (f.family() != INHERIT_FAMILY) {
 827                 os << '\\'
 828                    << LaTeXFamilyNames[f.family()]
 829                    << '{';
 830                 count += strlen(LaTeXFamilyNames[f.family()]) + 2;
 831                 env = true; //We have opened a new environment
 832         }
 833         if (f.series() != INHERIT_SERIES) {
 834                 os << '\\'
 835                    << LaTeXSeriesNames[f.series()]
 836                    << '{';
 837                 count += strlen(LaTeXSeriesNames[f.series()]) + 2;
 838                 env = true; //We have opened a new environment
 839         }
 840         if (f.shape() != INHERIT_SHAPE) {
 841                 os << '\\'
 842                    << LaTeXShapeNames[f.shape()]
 843                    << '{';
 844                 count += strlen(LaTeXShapeNames[f.shape()]) + 2;
 845                 env = true; //We have opened a new environment
 846         }
 847         if (f.color() != LColor::inherit && f.color() != LColor::ignore) {
 848                 os << "\\textcolor{"
 849                    << lcolor.getLaTeXName(f.color())
 850                    << "}{";
 851                 count += lcolor.getLaTeXName(f.color()).length() + 13;
 852                 env = true; //We have opened a new environment
 853         }
 854         if (f.emph() == ON) {
 855                 os << "\\emph{";
 856                 count += 6;
 857                 env = true; //We have opened a new environment
 858         }
 859         if (f.underbar() == ON) {
 860                 os << "\\underbar{";
 861                 count += 10;
 862                 env = true; //We have opened a new environment
 863         }
 864         // \noun{} is a LyX special macro
 865         if (f.noun() == ON) {
 866                 os << "\\noun{";
 867                 count += 8;
 868                 env = true; //We have opened a new environment
 869         }
 870         if (f.size() != INHERIT_SIZE) {
 871                 // If we didn't open an environment above, we open one here
 872                 if (!env) {
 873                         os << '{';
 874                         ++count;
 875                 }
 876                 os << '\\'
 877                    << LaTeXSizeNames[f.size()]
 878                    << ' ';
 879                 count += strlen(LaTeXSizeNames[f.size()]) + 2;
 880         }
 881         return count;
 882 }
 883
 884
 885 /// Writes ending block of LaTeX needed to close use of this font
 886 // Returns number of chars written
 887 // This one corresponds to latexWriteStartChanges(). (Asger)
 888 int LyXFont::latexWriteEndChanges(ostream & os, LyXFont const & base,
 889                                   LyXFont const & next) const
 890 {
 891         int count = 0;
 892         bool env = false;
 893
 894         // reduce the current font to changes against the base
 895         // font (of the layout). We use a temporary for this to
 896         // avoid changing this font instance, as that would break
 897         LyXFont f = *this;
 898         f.reduce(base);
 899
 900         if (f.family() != INHERIT_FAMILY) {
 901                 os << '}';
 902                 ++count;
 903                 env = true; // Size change need not bother about closing env.
 904         }
 905         if (f.series() != INHERIT_SERIES) {
 906                 os << '}';
 907                 ++count;
 908                 env = true; // Size change need not bother about closing env.
 909         }
 910         if (f.shape() != INHERIT_SHAPE) {
 911                 os << '}';
 912                 ++count;
 913                 env = true; // Size change need not bother about closing env.
 914         }
 915         if (f.color() != LColor::inherit && f.color() != LColor::ignore) {
 916                 os << '}';
 917                 ++count;
 918                 env = true; // Size change need not bother about closing env.
 919         }
 920         if (f.emph() == ON) {
 921                 os << '}';
 922                 ++count;
 923                 env = true; // Size change need not bother about closing env.
 924         }
 925         if (f.underbar() == ON) {
 926                 os << '}';
 927                 ++count;
 928                 env = true; // Size change need not bother about closing env.
 929         }
 930         if (f.noun() == ON) {
 931                 os << '}';
 932                 ++count;
 933                 env = true; // Size change need not bother about closing env.
 934         }
 935         if (f.size() != INHERIT_SIZE) {
 936                 // We only have to close if only size changed
 937                 if (!env) {
 938                         os << '}';
 939                         ++count;
 940                 }
 941         }
 942
 943         if (number() == ON && next.number() != ON &&
 944             language()->lang() == "hebrew") {
 945                 os << "\\endL}";
 946                 count += 6;
 947         }
 948
 949         if (language() != base.language() && language() != next.language()) {
 950                 os << '}';
 951                 ++count;
 952         }
 953
 954         return count;
 955 }
 956
 957
 958 LColor::color LyXFont::realColor() const
 959 {
 960         if (color() == LColor::none)
 961                 return LColor::foreground;
 962         return color();
 963 }
 964
 965
 966 // Convert logical attributes to concrete shape attribute
 967 LyXFont::FONT_SHAPE LyXFont::realShape() const
 968 {
 969         register FONT_SHAPE s = shape();
 970
 971         if (emph() == ON) {
 972                 if (s == UP_SHAPE)
 973                         s = ITALIC_SHAPE;
 974                 else
 975                         s = UP_SHAPE;
 976         }
 977         if (noun() == ON)
 978                 s = SMALLCAPS_SHAPE;
 979         return s;
 980 }
 981
 982
 983 ostream & operator<<(ostream & o, LyXFont::FONT_MISC_STATE fms)
 984 {
 985         return o << int(fms);
 986 }