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 "FontLoader.h"
  26 #include "support/lstrings.h"
  27 #include "bufferparams.h" // stateText
  28
  29 using std::ostream;
  30 using std::endl;
  31
  32 #ifndef CXX_GLOBAL_CSTD
  33 using std::strlen;
  34 #endif
  35
  36
  37 //
  38 // Names for the GUI
  39 //
  40
  41 namespace {
  42
  43 char const * GUIFamilyNames[6] =
  44 { N_("Roman"), N_("Sans serif"), N_("Typewriter"), N_("Symbol"), N_("Inherit"),
  45   N_("Ignore") };
  46
  47 char const * GUISeriesNames[4] =
  48 { N_("Medium"), N_("Bold"), N_("Inherit"), N_("Ignore") };
  49
  50 char const * GUIShapeNames[6] =
  51 { N_("Upright"), N_("Italic"), N_("Slanted"), N_("Smallcaps"), N_("Inherit"),
  52   N_("Ignore") };
  53
  54 char const * GUISizeNames[14] =
  55 { N_("Tiny"), N_("Smallest"), N_("Smaller"), N_("Small"), N_("Normal"), N_("Large"),
  56   N_("Larger"), N_("Largest"), N_("Huge"), N_("Huger"), N_("Increase"), N_("Decrease"),
  57   N_("Inherit"), N_("Ignore") };
  58
  59 char const * GUIMiscNames[5] =
  60 { N_("Off"), N_("On"), N_("Toggle"), N_("Inherit"), N_("Ignore") };
  61
  62
  63 //
  64 // Strings used to read and write .lyx format files
  65 //
  66 char const * LyXFamilyNames[6] =
  67 { "roman", "sans", "typewriter", "symbol", "default", "error" };
  68
  69 char const * LyXSeriesNames[4] =
  70 { "medium", "bold", "default", "error" };
  71
  72 char const * LyXShapeNames[6] =
  73 { "up", "italic", "slanted", "smallcaps", "default", "error" };
  74
  75 char const * LyXSizeNames[14] =
  76 { "tiny", "scriptsize", "footnotesize", "small", "normal", "large",
  77   "larger", "largest", "huge", "giant",
  78   "increase-error", "decrease-error", "default", "error" };
  79
  80 char const * LyXMiscNames[5] =
  81 { "off", "on", "toggle", "default", "error" };
  82
  83 //
  84 // Strings used to write LaTeX files
  85 //
  86 char const * LaTeXFamilyNames[6] =
  87 { "textrm", "textsf", "texttt", "error1", "error2", "error3" };
  88
  89 char const * LaTeXSeriesNames[4] =
  90 { "textmd", "textbf", "error4", "error5" };
  91
  92 char const * LaTeXShapeNames[6] =
  93 { "textup", "textit", "textsl", "textsc", "error6", "error7" };
  94
  95 char const * LaTeXSizeNames[14] =
  96 { "tiny", "scriptsize", "footnotesize", "small", "normalsize", "large",
  97   "Large", "LARGE", "huge", "Huge", "error8", "error9", "error10", "error11" };
  98
  99 } // namespace anon
 100
 101
 102 // Initialize static member
 103 LyXFont::FontBits LyXFont::sane = {
 104         ROMAN_FAMILY,
 105         MEDIUM_SERIES,
 106         UP_SHAPE,
 107         SIZE_NORMAL,
 108         LColor::none,
 109         OFF,
 110         OFF,
 111         OFF,
 112         OFF };
 113
 114 // Initialize static member
 115 LyXFont::FontBits LyXFont::inherit = {
 116         INHERIT_FAMILY,
 117         INHERIT_SERIES,
 118         INHERIT_SHAPE,
 119         INHERIT_SIZE,
 120         LColor::inherit,
 121         INHERIT,
 122         INHERIT,
 123         INHERIT,
 124         OFF };
 125
 126 // Initialize static member
 127 LyXFont::FontBits LyXFont::ignore = {
 128         IGNORE_FAMILY,
 129         IGNORE_SERIES,
 130         IGNORE_SHAPE,
 131         IGNORE_SIZE,
 132         LColor::ignore,
 133         IGNORE,
 134         IGNORE,
 135         IGNORE,
 136         IGNORE };
 137
 138
 139 bool LyXFont::FontBits::operator==(LyXFont::FontBits const & fb1) const
 140 {
 141         return fb1.family == family &&
 142                 fb1.series == series &&
 143                 fb1.shape == shape &&
 144                 fb1.size == size &&
 145                 fb1.color == color &&
 146                 fb1.emph == emph &&
 147                 fb1.underbar == underbar &&
 148                 fb1.noun == noun &&
 149                 fb1.number == number;
 150 }
 151
 152
 153 bool LyXFont::FontBits::operator!=(LyXFont::FontBits const & fb1) const
 154 {
 155         return !(fb1 == *this);
 156 }
 157
 158
 159 LyXFont::LyXFont(LyXFont::FONT_INIT1)
 160 #ifndef INHERIT_LANGUAGE
 161         : bits(inherit), lang(default_language)
 162 #else
 163         : bits(inherit), lang(inherit_language)
 164 #endif
 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 #ifndef INHERIT_LANGUAGE
 436                         setLanguage(document_language);
 437 #else
 438                         setLanguage(inherit_language);
 439 #endif
 440         else if (newfont.language() != ignore_language)
 441                 setLanguage(newfont.language());
 442
 443         if (newfont.color() == color() && toggleall)
 444                 setColor(LColor::inherit); // toggle 'back'
 445         else if (newfont.color() != LColor::ignore)
 446                 setColor(newfont.color());
 447 }
 448
 449
 450 /// Reduce font to fall back to template where possible
 451 void LyXFont::reduce(LyXFont const & tmplt)
 452 {
 453         if (family() == tmplt.family())
 454                 setFamily(INHERIT_FAMILY);
 455         if (series() == tmplt.series())
 456                 setSeries(INHERIT_SERIES);
 457         if (shape() == tmplt.shape())
 458                 setShape(INHERIT_SHAPE);
 459         if (size() == tmplt.size())
 460                 setSize(INHERIT_SIZE);
 461         if (emph() == tmplt.emph())
 462                 setEmph(INHERIT);
 463         if (underbar() == tmplt.underbar())
 464                 setUnderbar(INHERIT);
 465         if (noun() == tmplt.noun())
 466                 setNoun(INHERIT);
 467         if (color() == tmplt.color())
 468                 setColor(LColor::inherit);
 469 #ifdef INHERIT_LANGUAGE
 470         if (language() == tmplt.language())
 471                 setLanguage(inherit_language);
 472 #endif
 473 }
 474
 475
 476 /// Realize font from a template
 477 #ifndef INHERIT_LANGUAGE
 478 LyXFont & LyXFont::realize(LyXFont const & tmplt)
 479 #else
 480 LyXFont & LyXFont::realize(LyXFont const & tmplt, Language const * deflang)
 481 #endif
 482 {
 483 #ifdef INHERIT_LANGUAGE
 484         if (language() == inherit_language) {
 485                 if (tmplt.language() == inherit_language ||
 486                         tmplt.language() == ignore_language ||
 487                         tmplt.language() == default_language)
 488                 {
 489                         setLanguage(deflang);
 490                 } else {
 491                         setLanguage(tmplt.language());
 492                 }
 493         }
 494 #endif
 495         if (bits == inherit) {
 496                 bits = tmplt.bits;
 497                 return *this;
 498         }
 499
 500         if (bits.family == INHERIT_FAMILY) {
 501                 bits.family = tmplt.bits.family;
 502         }
 503         if (bits.series == INHERIT_SERIES) {
 504                 bits.series = tmplt.bits.series;
 505         }
 506         if (bits.shape == INHERIT_SHAPE) {
 507                 bits.shape = tmplt.bits.shape;
 508         }
 509         if (bits.size == INHERIT_SIZE) {
 510                 bits.size = tmplt.bits.size;
 511         }
 512         if (bits.emph == INHERIT) {
 513                 bits.emph = tmplt.bits.emph;
 514         }
 515         if (bits.underbar == INHERIT) {
 516                 bits.underbar = tmplt.bits.underbar;
 517         }
 518         if (bits.noun == INHERIT) {
 519                 bits.noun = tmplt.bits.noun;
 520         }
 521         if (bits.color == LColor::inherit) {
 522                 bits.color = tmplt.bits.color;
 523         }
 524         return *this;
 525 }
 526
 527
 528 /// Is font resolved?
 529 bool LyXFont::resolved() const
 530 {
 531         return (family() != INHERIT_FAMILY && series() != INHERIT_SERIES &&
 532                 shape() != INHERIT_SHAPE && size() != INHERIT_SIZE &&
 533                 emph() != INHERIT && underbar() != INHERIT &&
 534                 noun() != INHERIT &&
 535 #ifdef INHERIT_LANGUAGE
 536                 language() != inherit_language &&
 537 #endif
 538                 color() != LColor::inherit);
 539 }
 540
 541
 542 /// Build GUI description of font state
 543 string const LyXFont::stateText(BufferParams * params) const
 544 {
 545         ostringstream ost;
 546         if (family() != INHERIT_FAMILY)
 547                 ost << _(GUIFamilyNames[family()]) << ", ";
 548         if (series() != INHERIT_SERIES)
 549                 ost << _(GUISeriesNames[series()]) << ", ";
 550         if (shape() != INHERIT_SHAPE)
 551                 ost << _(GUIShapeNames[shape()]) << ", ";
 552         if (size() != INHERIT_SIZE)
 553                 ost << _(GUISizeNames[size()]) << ", ";
 554         if (color() != LColor::inherit)
 555                 ost << lcolor.getGUIName(color()) << ", ";
 556         if (emph() != INHERIT)
 557                 ost << _("Emphasis ")
 558                     << _(GUIMiscNames[emph()]) << ", ";
 559         if (underbar() != INHERIT)
 560                 ost << _("Underline ")
 561                     << _(GUIMiscNames[underbar()]) << ", ";
 562         if (noun() != INHERIT)
 563                 ost << _("Noun ") << _(GUIMiscNames[noun()]) << ", ";
 564         if (bits == inherit)
 565                 ost << _("Default") << ", ";
 566         if (!params || (language() != params->language))
 567                 ost << _("Language: ") << _(language()->display()) << ", ";
 568         if (number() != OFF)
 569                 ost << _("  Number ") << _(GUIMiscNames[number()]);
 570
 571         string buf(ost.str().c_str());
 572         buf = strip(buf, ' ');
 573         buf = strip(buf, ',');
 574         return buf;
 575 }
 576
 577
 578 // Set family according to lyx format string
 579 LyXFont & LyXFont::setLyXFamily(string const & fam)
 580 {
 581         string const s = lowercase(fam);
 582
 583         int i = 0;
 584         while (s != LyXFamilyNames[i] && LyXFamilyNames[i] != "error") ++i;
 585         if (s == LyXFamilyNames[i]) {
 586                 setFamily(LyXFont::FONT_FAMILY(i));
 587         } else
 588                 lyxerr << "LyXFont::setLyXFamily: Unknown family `"
 589                        << s << '\'' << endl;
 590         return *this;
 591 }
 592
 593
 594 // Set series according to lyx format string
 595 LyXFont & LyXFont::setLyXSeries(string const & ser)
 596 {
 597         string const s = lowercase(ser);
 598
 599         int i = 0;
 600         while (s != LyXSeriesNames[i] && LyXSeriesNames[i] != "error") ++i;
 601         if (s == LyXSeriesNames[i]) {
 602                 setSeries(LyXFont::FONT_SERIES(i));
 603         } else
 604                 lyxerr << "LyXFont::setLyXSeries: Unknown series `"
 605                        << s << '\'' << endl;
 606         return *this;
 607 }
 608
 609
 610 // Set shape according to lyx format string
 611 LyXFont & LyXFont::setLyXShape(string const & sha)
 612 {
 613         string const s = lowercase(sha);
 614
 615         int i = 0;
 616         while (s != LyXShapeNames[i] && LyXShapeNames[i] != "error") ++i;
 617         if (s == LyXShapeNames[i]) {
 618                 setShape(LyXFont::FONT_SHAPE(i));
 619         } else
 620                 lyxerr << "LyXFont::setLyXShape: Unknown shape `"
 621                        << s << '\'' << endl;
 622         return *this;
 623 }
 624
 625
 626 // Set size according to lyx format string
 627 LyXFont & LyXFont::setLyXSize(string const & siz)
 628 {
 629         string const s = lowercase(siz);
 630         int i = 0;
 631         while (s != LyXSizeNames[i] && LyXSizeNames[i] != "error") ++i;
 632         if (s == LyXSizeNames[i]) {
 633                 setSize(LyXFont::FONT_SIZE(i));
 634         } else
 635                 lyxerr << "LyXFont::setLyXSize: Unknown size `"
 636                        << s << '\'' << endl;
 637         return *this;
 638 }
 639
 640
 641 // Set size according to lyx format string
 642 LyXFont::FONT_MISC_STATE LyXFont::setLyXMisc(string const & siz)
 643 {
 644         string const s = lowercase(siz);
 645         int i = 0;
 646         while (s != LyXMiscNames[i] && LyXMiscNames[i] != "error") ++i;
 647         if (s == LyXMiscNames[i])
 648                 return FONT_MISC_STATE(i);
 649         lyxerr << "LyXFont::setLyXMisc: Unknown misc flag `"
 650                << s << '\'' << endl;
 651         return OFF;
 652 }
 653
 654
 655 /// Sets color after LyX text format
 656 LyXFont & LyXFont::setLyXColor(string const & col)
 657 {
 658         setColor(lcolor.getFromLyXName(col));
 659         return *this;
 660 }
 661
 662
 663 // Returns size in latex format
 664 string const LyXFont::latexSize() const
 665 {
 666         return LaTeXSizeNames[size()];
 667 }
 668
 669
 670 // Read a font definition from given file in lyx format
 671 // Used for layouts
 672 LyXFont & LyXFont::lyxRead(LyXLex & lex)
 673 {
 674         bool error = false;
 675         bool finished = false;
 676         while (!finished && lex.isOK() && !error) {
 677                 lex.next();
 678                 string const tok = lowercase(lex.getString());
 679
 680                 if (tok.empty()) {
 681                         continue;
 682                 } else if (tok == "endfont") {
 683                         finished = true;
 684                 } else if (tok == "family") {
 685                         lex.next();
 686                         string const ttok = lex.getString();
 687                         setLyXFamily(ttok);
 688                 } else if (tok == "series") {
 689                         lex.next();
 690                         string const ttok = lex.getString();
 691                         setLyXSeries(ttok);
 692                 } else if (tok == "shape") {
 693                         lex.next();
 694                         string const ttok = lex.getString();
 695                         setLyXShape(ttok);
 696                 } else if (tok == "size") {
 697                         lex.next();
 698                         string const ttok = lex.getString();
 699                         setLyXSize(ttok);
 700                 } else if (tok == "misc") {
 701                         lex.next();
 702                         string const ttok = lowercase(lex.getString());
 703
 704                         if (ttok == "no_bar") {
 705                                 setUnderbar(OFF);
 706                         } else if (ttok == "no_emph") {
 707                                 setEmph(OFF);
 708                         } else if (ttok == "no_noun") {
 709                                 setNoun(OFF);
 710                         } else if (ttok == "emph") {
 711                                 setEmph(ON);
 712                         } else if (ttok == "underbar") {
 713                                 setUnderbar(ON);
 714                         } else if (ttok == "noun") {
 715                                 setNoun(ON);
 716                         } else {
 717                                 lex.printError("Illegal misc type `$$Token´");
 718                         }
 719                 } else if (tok == "color") {
 720                         lex.next();
 721                         string const ttok = lex.getString();
 722                         setLyXColor(ttok);
 723                 } else {
 724                         lex.printError("Unknown tag `$$Token'");
 725                         error = true;
 726                 }
 727         }
 728         return *this;
 729 }
 730
 731
 732 /// Writes the changes from this font to orgfont in .lyx format in file
 733 void LyXFont::lyxWriteChanges(LyXFont const & orgfont,
 734 #ifdef INHERIT_LANGUAGE
 735                               Language const * doclang,
 736 #endif
 737                               ostream & os) const
 738 {
 739         os << "\n";
 740         if (orgfont.family() != family()) {
 741                 os << "\\family " << LyXFamilyNames[family()] << " \n";
 742         }
 743         if (orgfont.series() != series()) {
 744                 os << "\\series " << LyXSeriesNames[series()] << " \n";
 745         }
 746         if (orgfont.shape() != shape()) {
 747                 os << "\\shape " << LyXShapeNames[shape()] << " \n";
 748         }
 749         if (orgfont.size() != size()) {
 750                 os << "\\size " << LyXSizeNames[size()] << " \n";
 751         }
 752         if (orgfont.emph() != emph()) {
 753                 os << "\\emph " << LyXMiscNames[emph()] << " \n";
 754         }
 755         if (orgfont.number() != number()) {
 756                 os << "\\numeric " << LyXMiscNames[number()] << " \n";
 757         }
 758         if (orgfont.underbar() != underbar()) {
 759                 // This is only for backwards compatibility
 760                 switch (underbar()) {
 761                 case OFF:       os << "\\bar no \n"; break;
 762                 case ON:        os << "\\bar under \n"; break;
 763                 case TOGGLE:    lyxerr << "LyXFont::lyxWriteFontChanges: "
 764                                         "TOGGLE should not appear here!"
 765                                        << endl;
 766                 break;
 767                 case INHERIT:   os << "\\bar default \n"; break;
 768                 case IGNORE:    lyxerr << "LyXFont::lyxWriteFontChanges: "
 769                                         "IGNORE should not appear here!"
 770                                        << endl;
 771                 break;
 772                 }
 773         }
 774         if (orgfont.noun() != noun()) {
 775                 os << "\\noun " << LyXMiscNames[noun()] << " \n";
 776         }
 777         if (orgfont.color() != color()) {
 778                 // To make us file compatible with older
 779                 // lyx versions we emit "default" instead
 780                 // of "inherit"
 781                 string col_str(lcolor.getLyXName(color()));
 782                 if (col_str == "inherit") col_str = "default";
 783                 os << "\\color " << col_str << "\n";
 784         }
 785         if (orgfont.language() != language()) {
 786 #ifndef INHERIT_LANGUAGE
 787                 if (language())
 788 #else
 789                 if (language() == inherit_language)
 790                         os << "\\lang " << doclang->lang() << "\n";
 791                 else if (language())
 792 #endif
 793                         os << "\\lang " << language()->lang() << "\n";
 794                 else
 795                         os << "\\lang unknown\n";
 796         }
 797 }
 798
 799
 800 /// Writes the head of the LaTeX needed to impose this font
 801 // Returns number of chars written.
 802 int LyXFont::latexWriteStartChanges(ostream & os, LyXFont const & base,
 803                                     LyXFont const & prev) const
 804 {
 805         int count = 0;
 806         bool env = false;
 807
 808         if (language()->babel() != base.language()->babel() &&
 809             language()->babel() != prev.language()->babel()) {
 810                 if (isRightToLeft() != prev.isRightToLeft()) {
 811                         if (isRightToLeft()) {
 812                                 os << "\\R{";
 813                                 count += 3;
 814                         } else {
 815                                 os << "\\L{";
 816                                 count += 3;
 817                         }
 818                 } else {
 819                         string const tmp =
 820                                 subst(lyxrc.language_command_local,
 821                                       "$$lang", language()->babel());
 822                         os << tmp;
 823                         count += tmp.length();
 824                 }
 825         }
 826
 827         if (number() == ON && prev.number() != ON &&
 828             language()->lang() == "hebrew") {
 829                 os << "{\\beginL ";
 830                 count += 9;
 831         }
 832
 833         LyXFont f = *this;
 834         f.reduce(base);
 835
 836         if (f.family() != INHERIT_FAMILY) {
 837                 os << '\\'
 838                    << LaTeXFamilyNames[f.family()]
 839                    << '{';
 840                 count += strlen(LaTeXFamilyNames[f.family()]) + 2;
 841                 env = true; //We have opened a new environment
 842         }
 843         if (f.series() != INHERIT_SERIES) {
 844                 os << '\\'
 845                    << LaTeXSeriesNames[f.series()]
 846                    << '{';
 847                 count += strlen(LaTeXSeriesNames[f.series()]) + 2;
 848                 env = true; //We have opened a new environment
 849         }
 850         if (f.shape() != INHERIT_SHAPE) {
 851                 os << '\\'
 852                    << LaTeXShapeNames[f.shape()]
 853                    << '{';
 854                 count += strlen(LaTeXShapeNames[f.shape()]) + 2;
 855                 env = true; //We have opened a new environment
 856         }
 857         if (f.color() != LColor::inherit && f.color() != LColor::ignore) {
 858                 os << "\\textcolor{"
 859                    << lcolor.getLaTeXName(f.color())
 860                    << "}{";
 861                 count += lcolor.getLaTeXName(f.color()).length() + 13;
 862                 env = true; //We have opened a new environment
 863         }
 864         if (f.emph() == ON) {
 865                 os << "\\emph{";
 866                 count += 6;
 867                 env = true; //We have opened a new environment
 868         }
 869         if (f.underbar() == ON) {
 870                 os << "\\underbar{";
 871                 count += 10;
 872                 env = true; //We have opened a new environment
 873         }
 874         // \noun{} is a LyX special macro
 875         if (f.noun() == ON) {
 876                 os << "\\noun{";
 877                 count += 8;
 878                 env = true; //We have opened a new environment
 879         }
 880         if (f.size() != INHERIT_SIZE) {
 881                 // If we didn't open an environment above, we open one here
 882                 if (!env) {
 883                         os << '{';
 884                         ++count;
 885                 }
 886                 os << '\\'
 887                    << LaTeXSizeNames[f.size()]
 888                    << ' ';
 889                 count += strlen(LaTeXSizeNames[f.size()]) + 2;
 890         }
 891         return count;
 892 }
 893
 894
 895 /// Writes ending block of LaTeX needed to close use of this font
 896 // Returns number of chars written
 897 // This one corresponds to latexWriteStartChanges(). (Asger)
 898 int LyXFont::latexWriteEndChanges(ostream & os, LyXFont const & base,
 899                                   LyXFont const & next) const
 900 {
 901         int count = 0;
 902         bool env = false;
 903
 904         LyXFont f = *this; // why do you need this?
 905         f.reduce(base); // why isn't this just "reduce(base);" (Lgb)
 906         // Because this function is const. Everything breaks if this
 907         // method changes the font it represents. There is no speed penalty
 908         // by using the temporary. (Asger)
 909
 910
 911         if (f.family() != INHERIT_FAMILY) {
 912                 os << '}';
 913                 ++count;
 914                 env = true; // Size change need not bother about closing env.
 915         }
 916         if (f.series() != INHERIT_SERIES) {
 917                 os << '}';
 918                 ++count;
 919                 env = true; // Size change need not bother about closing env.
 920         }
 921         if (f.shape() != INHERIT_SHAPE) {
 922                 os << '}';
 923                 ++count;
 924                 env = true; // Size change need not bother about closing env.
 925         }
 926         if (f.color() != LColor::inherit && f.color() != LColor::ignore) {
 927                 os << '}';
 928                 ++count;
 929                 env = true; // Size change need not bother about closing env.
 930         }
 931         if (f.emph() == ON) {
 932                 os << '}';
 933                 ++count;
 934                 env = true; // Size change need not bother about closing env.
 935         }
 936         if (f.underbar() == ON) {
 937                 os << '}';
 938                 ++count;
 939                 env = true; // Size change need not bother about closing env.
 940         }
 941         if (f.noun() == ON) {
 942                 os << '}';
 943                 ++count;
 944                 env = true; // Size change need not bother about closing env.
 945         }
 946         if (f.size() != INHERIT_SIZE) {
 947                 // We only have to close if only size changed
 948                 if (!env) {
 949                         os << '}';
 950                         ++count;
 951                 }
 952         }
 953
 954         if (number() == ON && next.number() != ON &&
 955             language()->lang() == "hebrew") {
 956                 os << "\\endL}";
 957                 count += 6;
 958         }
 959
 960         if (language() != base.language() && language() != next.language()) {
 961                 os << "}";
 962                 ++count;
 963         }
 964
 965         return count;
 966 }
 967
 968
 969 LColor::color LyXFont::realColor() const
 970 {
 971         if (color() == LColor::none)
 972                 return LColor::foreground;
 973         return color();
 974 }
 975
 976
 977 // Convert logical attributes to concrete shape attribute
 978 LyXFont::FONT_SHAPE LyXFont::realShape() const
 979 {
 980         register FONT_SHAPE s = shape();
 981
 982         if (emph() == ON) {
 983                 if (s == UP_SHAPE)
 984                         s = ITALIC_SHAPE;
 985                 else
 986                         s = UP_SHAPE;
 987         }
 988         if (noun() == ON)
 989                 s = SMALLCAPS_SHAPE;
 990         return s;
 991 }
 992
 993
 994 ostream & operator<<(ostream & o, LyXFont::FONT_MISC_STATE fms)
 995 {
 996         return o << int(fms);
 997 }