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 "FontLoader.h"
  27 #include "support/lstrings.h"
  28 #include "bufferparams.h" // stateText
  29
  30 using std::ostream;
  31 using std::endl;
  32
  33 #ifndef CXX_GLOBAL_CSTD
  34 using std::strlen;
  35 #endif
  36
  37 //
  38 // Names for the GUI
  39 //
  40
  41 namespace {
  42
  43 char const * GUIFamilyNames[LyXFont::NUM_FAMILIES + 2 /* default & error */] =
  44 { N_("Roman"), N_("Sans serif"), N_("Typewriter"), N_("Symbol"),
  45   "cmr", "cmsy", "cmm", "cmex", "msa", "msb", "eufrak",
  46   N_("Inherit"), N_("Ignore") };
  47
  48 char const * GUISeriesNames[4] =
  49 { N_("Medium"), N_("Bold"), N_("Inherit"), N_("Ignore") };
  50
  51 char const * GUIShapeNames[6] =
  52 { N_("Upright"), N_("Italic"), N_("Slanted"), N_("Smallcaps"), N_("Inherit"),
  53   N_("Ignore") };
  54
  55 char const * GUISizeNames[14] =
  56 { N_("Tiny"), N_("Smallest"), N_("Smaller"), N_("Small"), N_("Normal"), N_("Large"),
  57   N_("Larger"), N_("Largest"), N_("Huge"), N_("Huger"), N_("Increase"), N_("Decrease"),
  58   N_("Inherit"), N_("Ignore") };
  59
  60 char const * GUIMiscNames[5] =
  61 { N_("Off"), N_("On"), N_("Toggle"), N_("Inherit"), N_("Ignore") };
  62
  63
  64 //
  65 // Strings used to read and write .lyx format files
  66 //
  67 char const * LyXFamilyNames[LyXFont::NUM_FAMILIES + 2 /* default & error */] =
  68 { "roman", "sans", "typewriter", "symbol",
  69   "cmr", "cmsy", "cmm", "cmex", "msa", "msb", "eufrak",
  70   "default", "error" };
  71
  72 char const * LyXSeriesNames[4] =
  73 { "medium", "bold", "default", "error" };
  74
  75 char const * LyXShapeNames[6] =
  76 { "up", "italic", "slanted", "smallcaps", "default", "error" };
  77
  78 char const * LyXSizeNames[14] =
  79 { "tiny", "scriptsize", "footnotesize", "small", "normal", "large",
  80   "larger", "largest", "huge", "giant",
  81   "increase", "decrease", "default", "error" };
  82
  83 char const * LyXMiscNames[5] =
  84 { "off", "on", "toggle", "default", "error" };
  85
  86 //
  87 // Strings used to write LaTeX files
  88 //
  89 char const * LaTeXFamilyNames[6] =
  90 { "textrm", "textsf", "texttt", "error1", "error2", "error3" };
  91
  92 char const * LaTeXSeriesNames[4] =
  93 { "textmd", "textbf", "error4", "error5" };
  94
  95 char const * LaTeXShapeNames[6] =
  96 { "textup", "textit", "textsl", "textsc", "error6", "error7" };
  97
  98 char const * LaTeXSizeNames[14] =
  99 { "tiny", "scriptsize", "footnotesize", "small", "normalsize", "large",
 100   "Large", "LARGE", "huge", "Huge", "error8", "error9", "error10", "error11" };
 101
 102 } // namespace anon
 103
 104
 105 // Initialize static member
 106 LyXFont::FontBits LyXFont::sane = {
 107         ROMAN_FAMILY,
 108         MEDIUM_SERIES,
 109         UP_SHAPE,
 110         SIZE_NORMAL,
 111         LColor::none,
 112         OFF,
 113         OFF,
 114         OFF,
 115         OFF };
 116
 117 // Initialize static member
 118 LyXFont::FontBits LyXFont::inherit = {
 119         INHERIT_FAMILY,
 120         INHERIT_SERIES,
 121         INHERIT_SHAPE,
 122         INHERIT_SIZE,
 123         LColor::inherit,
 124         INHERIT,
 125         INHERIT,
 126         INHERIT,
 127         OFF };
 128
 129 // Initialize static member
 130 LyXFont::FontBits LyXFont::ignore = {
 131         IGNORE_FAMILY,
 132         IGNORE_SERIES,
 133         IGNORE_SHAPE,
 134         IGNORE_SIZE,
 135         LColor::ignore,
 136         IGNORE,
 137         IGNORE,
 138         IGNORE,
 139         IGNORE };
 140
 141
 142 bool LyXFont::FontBits::operator==(LyXFont::FontBits const & fb1) const
 143 {
 144         return fb1.family == family &&
 145                 fb1.series == series &&
 146                 fb1.shape == shape &&
 147                 fb1.size == size &&
 148                 fb1.color == color &&
 149                 fb1.emph == emph &&
 150                 fb1.underbar == underbar &&
 151                 fb1.noun == noun &&
 152                 fb1.number == number;
 153 }
 154
 155
 156 bool LyXFont::FontBits::operator!=(LyXFont::FontBits const & fb1) const
 157 {
 158         return !(fb1 == *this);
 159 }
 160
 161
 162 LyXFont::LyXFont()
 163         : bits(sane), lang(default_language)
 164 {}
 165
 166
 167 LyXFont::LyXFont(LyXFont::FONT_INIT1)
 168 #ifndef INHERIT_LANGUAGE
 169         : bits(inherit), lang(default_language)
 170 #else
 171         : bits(inherit), lang(inherit_language)
 172 #endif
 173 {}
 174
 175
 176 LyXFont::LyXFont(LyXFont::FONT_INIT2)
 177         : bits(ignore), lang(ignore_language)
 178 {}
 179
 180
 181 LyXFont::LyXFont(LyXFont::FONT_INIT3)
 182         : bits(sane), lang(default_language)
 183 {}
 184
 185
 186 LyXFont::LyXFont(LyXFont::FONT_INIT1, Language const * l)
 187         : bits(inherit), lang(l)
 188 {}
 189
 190
 191 LyXFont::LyXFont(LyXFont::FONT_INIT2, Language const * l)
 192         : bits(ignore), lang(l)
 193 {}
 194
 195
 196 LyXFont::LyXFont(LyXFont::FONT_INIT3, Language const * l)
 197         : bits(sane), lang(l)
 198 {}
 199
 200
 201 LyXFont::FONT_MISC_STATE LyXFont::underbar() const
 202 {
 203         return bits.underbar;
 204 }
 205
 206
 207 LColor::color LyXFont::color() const
 208 {
 209         return bits.color;
 210 }
 211
 212
 213 Language const * LyXFont::language() const
 214 {
 215         return lang;
 216 }
 217
 218
 219 LyXFont::FONT_MISC_STATE LyXFont::number() const
 220 {
 221         return bits.number;
 222 }
 223
 224
 225 bool LyXFont::isRightToLeft() const
 226 {
 227         return lang->RightToLeft();
 228 }
 229
 230
 231 bool LyXFont::isVisibleRightToLeft() const
 232 {
 233         return (lang->RightToLeft() &&
 234                 number() != ON);
 235 }
 236
 237
 238 LyXFont & LyXFont::setFamily(LyXFont::FONT_FAMILY f)
 239 {
 240         bits.family = f;
 241         return *this;
 242 }
 243
 244
 245 LyXFont & LyXFont::setSeries(LyXFont::FONT_SERIES s)
 246 {
 247         bits.series = s;
 248         return *this;
 249 }
 250
 251
 252 LyXFont & LyXFont::setShape(LyXFont::FONT_SHAPE s)
 253 {
 254         bits.shape = s;
 255         return *this;
 256 }
 257
 258
 259 LyXFont & LyXFont::setSize(LyXFont::FONT_SIZE s)
 260 {
 261         bits.size = s;
 262         return *this;
 263 }
 264
 265
 266 LyXFont & LyXFont::setEmph(LyXFont::FONT_MISC_STATE e)
 267 {
 268         bits.emph = e;
 269         return *this;
 270 }
 271
 272
 273 LyXFont & LyXFont::setUnderbar(LyXFont::FONT_MISC_STATE u)
 274 {
 275         bits.underbar = u;
 276         return *this;
 277 }
 278
 279
 280 LyXFont & LyXFont::setNoun(LyXFont::FONT_MISC_STATE n)
 281 {
 282         bits.noun = n;
 283         return *this;
 284 }
 285
 286
 287 LyXFont & LyXFont::setColor(LColor::color c)
 288 {
 289         bits.color = c;
 290         return *this;
 291 }
 292
 293
 294 LyXFont & LyXFont::setLanguage(Language const * l)
 295 {
 296         lang = l;
 297         return *this;
 298 }
 299
 300
 301 LyXFont & LyXFont::setNumber(LyXFont::FONT_MISC_STATE n)
 302 {
 303         bits.number = n;
 304         return *this;
 305 }
 306
 307
 308 /// Decreases font size by one
 309 LyXFont & LyXFont::decSize()
 310 {
 311         switch (size()) {
 312         case SIZE_HUGER:        setSize(SIZE_HUGE);     break;
 313         case SIZE_HUGE:         setSize(SIZE_LARGEST);  break;
 314         case SIZE_LARGEST:      setSize(SIZE_LARGER);   break;
 315         case SIZE_LARGER:       setSize(SIZE_LARGE);    break;
 316         case SIZE_LARGE:        setSize(SIZE_NORMAL);   break;
 317         case SIZE_NORMAL:       setSize(SIZE_SMALL);    break;
 318         case SIZE_SMALL:        setSize(SIZE_FOOTNOTE); break;
 319         case SIZE_FOOTNOTE:     setSize(SIZE_SCRIPT);   break;
 320         case SIZE_SCRIPT:       setSize(SIZE_TINY);     break;
 321         case SIZE_TINY:         break;
 322         case INCREASE_SIZE:
 323                 lyxerr << "Can't LyXFont::decSize on INCREASE_SIZE" << endl;
 324                 break;
 325         case DECREASE_SIZE:
 326                 lyxerr <<"Can't LyXFont::decSize on DECREASE_SIZE" << endl;
 327                 break;
 328         case INHERIT_SIZE:
 329                 lyxerr <<"Can't LyXFont::decSize on INHERIT_SIZE" << endl;
 330                 break;
 331         case IGNORE_SIZE:
 332                 lyxerr <<"Can't LyXFont::decSize on IGNORE_SIZE" << endl;
 333                 break;
 334         }
 335         return *this;
 336 }
 337
 338
 339 /// Increases font size by one
 340 LyXFont & LyXFont::incSize()
 341 {
 342         switch (size()) {
 343         case SIZE_HUGER:        break;
 344         case SIZE_HUGE:         setSize(SIZE_HUGER);    break;
 345         case SIZE_LARGEST:      setSize(SIZE_HUGE);     break;
 346         case SIZE_LARGER:       setSize(SIZE_LARGEST);  break;
 347         case SIZE_LARGE:        setSize(SIZE_LARGER);   break;
 348         case SIZE_NORMAL:       setSize(SIZE_LARGE);    break;
 349         case SIZE_SMALL:        setSize(SIZE_NORMAL);   break;
 350         case SIZE_FOOTNOTE:     setSize(SIZE_SMALL);    break;
 351         case SIZE_SCRIPT:       setSize(SIZE_FOOTNOTE); break;
 352         case SIZE_TINY:         setSize(SIZE_SCRIPT);   break;
 353         case INCREASE_SIZE:
 354                 lyxerr <<"Can't LyXFont::incSize on INCREASE_SIZE" << endl;
 355                 break;
 356         case DECREASE_SIZE:
 357                 lyxerr <<"Can't LyXFont::incSize on DECREASE_SIZE" << endl;
 358                 break;
 359         case INHERIT_SIZE:
 360                 lyxerr <<"Can't LyXFont::incSize on INHERIT_SIZE" << endl;
 361                 break;
 362         case IGNORE_SIZE:
 363                 lyxerr <<"Can't LyXFont::incSize on IGNORE_SIZE" << endl;
 364                 break;
 365         }
 366         return *this;
 367 }
 368
 369
 370 /// Updates a misc setting according to request
 371 LyXFont::FONT_MISC_STATE LyXFont::setMisc(FONT_MISC_STATE newfont,
 372                                           FONT_MISC_STATE org)
 373 {
 374         if (newfont == TOGGLE) {
 375                 if (org == ON)
 376                         return OFF;
 377                 else if (org == OFF)
 378                         return ON;
 379                 else {
 380                         lyxerr <<"LyXFont::setMisc: Need state"
 381                                 " ON or OFF to toggle. Setting to ON" << endl;
 382                         return ON;
 383                 }
 384         } else if (newfont == IGNORE)
 385                 return org;
 386         else
 387                 return newfont;
 388 }
 389
 390
 391 /// Updates font settings according to request
 392 void LyXFont::update(LyXFont const & newfont,
 393                      Language const * document_language,
 394                      bool toggleall)
 395 {
 396         if (newfont.family() == family() && toggleall)
 397                 setFamily(INHERIT_FAMILY); // toggle 'back'
 398         else if (newfont.family() != IGNORE_FAMILY)
 399                 setFamily(newfont.family());
 400         // else it's IGNORE_SHAPE
 401
 402         // "Old" behaviour: "Setting" bold will toggle bold on/off.
 403         switch (newfont.series()) {
 404         case BOLD_SERIES:
 405                 // We toggle...
 406                 if (series() == BOLD_SERIES && toggleall)
 407                         setSeries(MEDIUM_SERIES);
 408                 else
 409                         setSeries(BOLD_SERIES);
 410                 break;
 411         case MEDIUM_SERIES:
 412         case INHERIT_SERIES:
 413                 setSeries(newfont.series());
 414                 break;
 415         case IGNORE_SERIES:
 416                 break;
 417         }
 418
 419         if (newfont.shape() == shape() && toggleall)
 420                 setShape(INHERIT_SHAPE); // toggle 'back'
 421         else if (newfont.shape() != IGNORE_SHAPE)
 422                 setShape(newfont.shape());
 423         // else it's IGNORE_SHAPE
 424
 425         if (newfont.size() != IGNORE_SIZE) {
 426                 if (newfont.size() == INCREASE_SIZE)
 427                         incSize();
 428                 else if (newfont.size() == DECREASE_SIZE)
 429                         decSize();
 430                 else
 431                         setSize(newfont.size());
 432         }
 433
 434         setEmph(setMisc(newfont.emph(), emph()));
 435         setUnderbar(setMisc(newfont.underbar(), underbar()));
 436         setNoun(setMisc(newfont.noun(), noun()));
 437
 438         setNumber(setMisc(newfont.number(), number()));
 439         if (newfont.language() == language() && toggleall)
 440                 if (language() == document_language)
 441                         setLanguage(default_language);
 442                 else
 443 #ifndef INHERIT_LANGUAGE
 444                         setLanguage(document_language);
 445 #else
 446                         setLanguage(inherit_language);
 447 #endif
 448         else if (newfont.language() != ignore_language)
 449                 setLanguage(newfont.language());
 450
 451         if (newfont.color() == color() && toggleall)
 452                 setColor(LColor::inherit); // toggle 'back'
 453         else if (newfont.color() != LColor::ignore)
 454                 setColor(newfont.color());
 455 }
 456
 457
 458 /// Reduce font to fall back to template where possible
 459 void LyXFont::reduce(LyXFont const & tmplt)
 460 {
 461         if (family() == tmplt.family())
 462                 setFamily(INHERIT_FAMILY);
 463         if (series() == tmplt.series())
 464                 setSeries(INHERIT_SERIES);
 465         if (shape() == tmplt.shape())
 466                 setShape(INHERIT_SHAPE);
 467         if (size() == tmplt.size())
 468                 setSize(INHERIT_SIZE);
 469         if (emph() == tmplt.emph())
 470                 setEmph(INHERIT);
 471         if (underbar() == tmplt.underbar())
 472                 setUnderbar(INHERIT);
 473         if (noun() == tmplt.noun())
 474                 setNoun(INHERIT);
 475         if (color() == tmplt.color())
 476                 setColor(LColor::inherit);
 477 #ifdef INHERIT_LANGUAGE
 478         if (language() == tmplt.language())
 479                 setLanguage(inherit_language);
 480 #endif
 481 }
 482
 483
 484 /// Realize font from a template
 485 #ifndef INHERIT_LANGUAGE
 486 LyXFont & LyXFont::realize(LyXFont const & tmplt)
 487 #else
 488 LyXFont & LyXFont::realize(LyXFont const & tmplt, Language const * deflang)
 489 #endif
 490 {
 491 #ifdef INHERIT_LANGUAGE
 492         if (language() == inherit_language) {
 493                 if (tmplt.language() == inherit_language ||
 494                         tmplt.language() == ignore_language ||
 495                         tmplt.language() == default_language)
 496                 {
 497                         setLanguage(deflang);
 498                 } else {
 499                         setLanguage(tmplt.language());
 500                 }
 501         }
 502 #endif
 503         if (bits == inherit) {
 504                 bits = tmplt.bits;
 505                 return *this;
 506         }
 507
 508         if (bits.family == INHERIT_FAMILY) {
 509                 bits.family = tmplt.bits.family;
 510         }
 511         if (bits.series == INHERIT_SERIES) {
 512                 bits.series = tmplt.bits.series;
 513         }
 514         if (bits.shape == INHERIT_SHAPE) {
 515                 bits.shape = tmplt.bits.shape;
 516         }
 517         if (bits.size == INHERIT_SIZE) {
 518                 bits.size = tmplt.bits.size;
 519         }
 520         if (bits.emph == INHERIT) {
 521                 bits.emph = tmplt.bits.emph;
 522         }
 523         if (bits.underbar == INHERIT) {
 524                 bits.underbar = tmplt.bits.underbar;
 525         }
 526         if (bits.noun == INHERIT) {
 527                 bits.noun = tmplt.bits.noun;
 528         }
 529         if (bits.color == LColor::inherit) {
 530                 bits.color = tmplt.bits.color;
 531         }
 532         return *this;
 533 }
 534
 535
 536 /// Is font resolved?
 537 bool LyXFont::resolved() const
 538 {
 539         return (family() != INHERIT_FAMILY && series() != INHERIT_SERIES &&
 540                 shape() != INHERIT_SHAPE && size() != INHERIT_SIZE &&
 541                 emph() != INHERIT && underbar() != INHERIT &&
 542                 noun() != INHERIT &&
 543 #ifdef INHERIT_LANGUAGE
 544                 language() != inherit_language &&
 545 #endif
 546                 color() != LColor::inherit);
 547 }
 548
 549
 550 /// Build GUI description of font state
 551 string const LyXFont::stateText(BufferParams * params) const
 552 {
 553         ostringstream ost;
 554         if (family() != INHERIT_FAMILY)
 555                 ost << _(GUIFamilyNames[family()]) << ", ";
 556         if (series() != INHERIT_SERIES)
 557                 ost << _(GUISeriesNames[series()]) << ", ";
 558         if (shape() != INHERIT_SHAPE)
 559                 ost << _(GUIShapeNames[shape()]) << ", ";
 560         if (size() != INHERIT_SIZE)
 561                 ost << _(GUISizeNames[size()]) << ", ";
 562         if (color() != LColor::inherit)
 563                 ost << lcolor.getGUIName(color()) << ", ";
 564         if (emph() != INHERIT)
 565                 ost << _("Emphasis ")
 566                     << _(GUIMiscNames[emph()]) << ", ";
 567         if (underbar() != INHERIT)
 568                 ost << _("Underline ")
 569                     << _(GUIMiscNames[underbar()]) << ", ";
 570         if (noun() != INHERIT)
 571                 ost << _("Noun ") << _(GUIMiscNames[noun()]) << ", ";
 572         if (bits == inherit)
 573                 ost << _("Default") << ", ";
 574         if (!params || (language() != params->language))
 575                 ost << _("Language: ") << _(language()->display()) << ", ";
 576         if (number() != OFF)
 577                 ost << _("  Number ") << _(GUIMiscNames[number()]);
 578
 579         string buf(ost.str().c_str());
 580         buf = strip(buf, ' ');
 581         buf = strip(buf, ',');
 582         return buf;
 583 }
 584
 585
 586 // Set family according to lyx format string
 587 LyXFont & LyXFont::setLyXFamily(string const & fam)
 588 {
 589         string const s = lowercase(fam);
 590
 591         int i = 0;
 592         while (s != LyXFamilyNames[i] && LyXFamilyNames[i] != "error") ++i;
 593         if (s == LyXFamilyNames[i]) {
 594                 setFamily(LyXFont::FONT_FAMILY(i));
 595         } else
 596                 lyxerr << "LyXFont::setLyXFamily: Unknown family `"
 597                        << s << '\'' << endl;
 598         return *this;
 599 }
 600
 601
 602 // Set series according to lyx format string
 603 LyXFont & LyXFont::setLyXSeries(string const & ser)
 604 {
 605         string const s = lowercase(ser);
 606
 607         int i = 0;
 608         while (s != LyXSeriesNames[i] && LyXSeriesNames[i] != "error") ++i;
 609         if (s == LyXSeriesNames[i]) {
 610                 setSeries(LyXFont::FONT_SERIES(i));
 611         } else
 612                 lyxerr << "LyXFont::setLyXSeries: Unknown series `"
 613                        << s << '\'' << endl;
 614         return *this;
 615 }
 616
 617
 618 // Set shape according to lyx format string
 619 LyXFont & LyXFont::setLyXShape(string const & sha)
 620 {
 621         string const s = lowercase(sha);
 622
 623         int i = 0;
 624         while (s != LyXShapeNames[i] && LyXShapeNames[i] != "error") ++i;
 625         if (s == LyXShapeNames[i]) {
 626                 setShape(LyXFont::FONT_SHAPE(i));
 627         } else
 628                 lyxerr << "LyXFont::setLyXShape: Unknown shape `"
 629                        << s << '\'' << endl;
 630         return *this;
 631 }
 632
 633
 634 // Set size according to lyx format string
 635 LyXFont & LyXFont::setLyXSize(string const & siz)
 636 {
 637         string const s = lowercase(siz);
 638         int i = 0;
 639         while (s != LyXSizeNames[i] && LyXSizeNames[i] != "error") ++i;
 640         if (s == LyXSizeNames[i]) {
 641                 setSize(LyXFont::FONT_SIZE(i));
 642         } else
 643                 lyxerr << "LyXFont::setLyXSize: Unknown size `"
 644                        << s << '\'' << endl;
 645         return *this;
 646 }
 647
 648
 649 // Set size according to lyx format string
 650 LyXFont::FONT_MISC_STATE LyXFont::setLyXMisc(string const & siz)
 651 {
 652         string const s = lowercase(siz);
 653         int i = 0;
 654         while (s != LyXMiscNames[i] && LyXMiscNames[i] != "error") ++i;
 655         if (s == LyXMiscNames[i])
 656                 return FONT_MISC_STATE(i);
 657         lyxerr << "LyXFont::setLyXMisc: Unknown misc flag `"
 658                << s << '\'' << endl;
 659         return OFF;
 660 }
 661
 662
 663 /// Sets color after LyX text format
 664 LyXFont & LyXFont::setLyXColor(string const & col)
 665 {
 666         setColor(lcolor.getFromLyXName(col));
 667         return *this;
 668 }
 669
 670
 671 // Returns size in latex format
 672 string const LyXFont::latexSize() const
 673 {
 674         return LaTeXSizeNames[size()];
 675 }
 676
 677
 678 // Read a font definition from given file in lyx format
 679 // Used for layouts
 680 LyXFont & LyXFont::lyxRead(LyXLex & lex)
 681 {
 682         bool error = false;
 683         bool finished = false;
 684         while (!finished && lex.isOK() && !error) {
 685                 lex.next();
 686                 string const tok = lowercase(lex.getString());
 687
 688                 if (tok.empty()) {
 689                         continue;
 690                 } else if (tok == "endfont") {
 691                         finished = true;
 692                 } else if (tok == "family") {
 693                         lex.next();
 694                         string const ttok = lex.getString();
 695                         setLyXFamily(ttok);
 696                 } else if (tok == "series") {
 697                         lex.next();
 698                         string const ttok = lex.getString();
 699                         setLyXSeries(ttok);
 700                 } else if (tok == "shape") {
 701                         lex.next();
 702                         string const ttok = lex.getString();
 703                         setLyXShape(ttok);
 704                 } else if (tok == "size") {
 705                         lex.next();
 706                         string const ttok = lex.getString();
 707                         setLyXSize(ttok);
 708                 } else if (tok == "misc") {
 709                         lex.next();
 710                         string const ttok = lowercase(lex.getString());
 711
 712                         if (ttok == "no_bar") {
 713                                 setUnderbar(OFF);
 714                         } else if (ttok == "no_emph") {
 715                                 setEmph(OFF);
 716                         } else if (ttok == "no_noun") {
 717                                 setNoun(OFF);
 718                         } else if (ttok == "emph") {
 719                                 setEmph(ON);
 720                         } else if (ttok == "underbar") {
 721                                 setUnderbar(ON);
 722                         } else if (ttok == "noun") {
 723                                 setNoun(ON);
 724                         } else {
 725                                 lex.printError("Illegal misc type `$$Token´");
 726                         }
 727                 } else if (tok == "color") {
 728                         lex.next();
 729                         string const ttok = lex.getString();
 730                         setLyXColor(ttok);
 731                 } else {
 732                         lex.printError("Unknown tag `$$Token'");
 733                         error = true;
 734                 }
 735         }
 736         return *this;
 737 }
 738
 739
 740 /// Writes the changes from this font to orgfont in .lyx format in file
 741 void LyXFont::lyxWriteChanges(LyXFont const & orgfont,
 742 #ifdef INHERIT_LANGUAGE
 743                               Language const * doclang,
 744 #endif
 745                               ostream & os) const
 746 {
 747         os << "\n";
 748         if (orgfont.family() != family()) {
 749                 os << "\\family " << LyXFamilyNames[family()] << " \n";
 750         }
 751         if (orgfont.series() != series()) {
 752                 os << "\\series " << LyXSeriesNames[series()] << " \n";
 753         }
 754         if (orgfont.shape() != shape()) {
 755                 os << "\\shape " << LyXShapeNames[shape()] << " \n";
 756         }
 757         if (orgfont.size() != size()) {
 758                 os << "\\size " << LyXSizeNames[size()] << " \n";
 759         }
 760         if (orgfont.emph() != emph()) {
 761                 os << "\\emph " << LyXMiscNames[emph()] << " \n";
 762         }
 763         if (orgfont.number() != number()) {
 764                 os << "\\numeric " << LyXMiscNames[number()] << " \n";
 765         }
 766         if (orgfont.underbar() != underbar()) {
 767                 // This is only for backwards compatibility
 768                 switch (underbar()) {
 769                 case OFF:       os << "\\bar no \n"; break;
 770                 case ON:        os << "\\bar under \n"; break;
 771                 case TOGGLE:    lyxerr << "LyXFont::lyxWriteFontChanges: "
 772                                         "TOGGLE should not appear here!"
 773                                        << endl;
 774                 break;
 775                 case INHERIT:   os << "\\bar default \n"; break;
 776                 case IGNORE:    lyxerr << "LyXFont::lyxWriteFontChanges: "
 777                                         "IGNORE should not appear here!"
 778                                        << endl;
 779                 break;
 780                 }
 781         }
 782         if (orgfont.noun() != noun()) {
 783                 os << "\\noun " << LyXMiscNames[noun()] << " \n";
 784         }
 785         if (orgfont.color() != color()) {
 786                 // To make us file compatible with older
 787                 // lyx versions we emit "default" instead
 788                 // of "inherit"
 789                 string col_str(lcolor.getLyXName(color()));
 790                 if (col_str == "inherit") col_str = "default";
 791                 os << "\\color " << col_str << "\n";
 792         }
 793         if (orgfont.language() != language()) {
 794 #ifndef INHERIT_LANGUAGE
 795                 if (language())
 796 #else
 797                 if (language() == inherit_language)
 798                         os << "\\lang " << doclang->lang() << "\n";
 799                 else if (language())
 800 #endif
 801                         os << "\\lang " << language()->lang() << "\n";
 802                 else
 803                         os << "\\lang unknown\n";
 804         }
 805 }
 806
 807
 808 /// Writes the head of the LaTeX needed to impose this font
 809 // Returns number of chars written.
 810 int LyXFont::latexWriteStartChanges(ostream & os, LyXFont const & base,
 811                                     LyXFont const & prev) const
 812 {
 813         int count = 0;
 814         bool env = false;
 815
 816         if (language()->babel() != base.language()->babel() &&
 817             language()->babel() != prev.language()->babel()) {
 818                 if (isRightToLeft() != prev.isRightToLeft()) {
 819                         if (isRightToLeft()) {
 820                                 os << "\\R{";
 821                                 count += 3;
 822                         } else {
 823                                 os << "\\L{";
 824                                 count += 3;
 825                         }
 826                 } else {
 827                         string const tmp =
 828                                 subst(lyxrc.language_command_local,
 829                                       "$$lang", language()->babel());
 830                         os << tmp;
 831                         count += tmp.length();
 832                 }
 833         }
 834
 835         if (number() == ON && prev.number() != ON &&
 836             language()->lang() == "hebrew") {
 837                 os << "{\\beginL ";
 838                 count += 9;
 839         }
 840
 841         LyXFont f = *this;
 842         f.reduce(base);
 843
 844         if (f.family() != INHERIT_FAMILY) {
 845                 os << '\\'
 846                    << LaTeXFamilyNames[f.family()]
 847                    << '{';
 848                 count += strlen(LaTeXFamilyNames[f.family()]) + 2;
 849                 env = true; //We have opened a new environment
 850         }
 851         if (f.series() != INHERIT_SERIES) {
 852                 os << '\\'
 853                    << LaTeXSeriesNames[f.series()]
 854                    << '{';
 855                 count += strlen(LaTeXSeriesNames[f.series()]) + 2;
 856                 env = true; //We have opened a new environment
 857         }
 858         if (f.shape() != INHERIT_SHAPE) {
 859                 os << '\\'
 860                    << LaTeXShapeNames[f.shape()]
 861                    << '{';
 862                 count += strlen(LaTeXShapeNames[f.shape()]) + 2;
 863                 env = true; //We have opened a new environment
 864         }
 865         if (f.color() != LColor::inherit && f.color() != LColor::ignore) {
 866                 os << "\\textcolor{"
 867                    << lcolor.getLaTeXName(f.color())
 868                    << "}{";
 869                 count += lcolor.getLaTeXName(f.color()).length() + 13;
 870                 env = true; //We have opened a new environment
 871         }
 872         if (f.emph() == ON) {
 873                 os << "\\emph{";
 874                 count += 6;
 875                 env = true; //We have opened a new environment
 876         }
 877         if (f.underbar() == ON) {
 878                 os << "\\underbar{";
 879                 count += 10;
 880                 env = true; //We have opened a new environment
 881         }
 882         // \noun{} is a LyX special macro
 883         if (f.noun() == ON) {
 884                 os << "\\noun{";
 885                 count += 8;
 886                 env = true; //We have opened a new environment
 887         }
 888         if (f.size() != INHERIT_SIZE) {
 889                 // If we didn't open an environment above, we open one here
 890                 if (!env) {
 891                         os << '{';
 892                         ++count;
 893                 }
 894                 os << '\\'
 895                    << LaTeXSizeNames[f.size()]
 896                    << ' ';
 897                 count += strlen(LaTeXSizeNames[f.size()]) + 2;
 898         }
 899         return count;
 900 }
 901
 902
 903 /// Writes ending block of LaTeX needed to close use of this font
 904 // Returns number of chars written
 905 // This one corresponds to latexWriteStartChanges(). (Asger)
 906 int LyXFont::latexWriteEndChanges(ostream & os, LyXFont const & base,
 907                                   LyXFont const & next) const
 908 {
 909         int count = 0;
 910         bool env = false;
 911
 912         LyXFont f = *this; // why do you need this?
 913         f.reduce(base); // why isn't this just "reduce(base);" (Lgb)
 914         // Because this function is const. Everything breaks if this
 915         // method changes the font it represents. There is no speed penalty
 916         // by using the temporary. (Asger)
 917
 918
 919         if (f.family() != INHERIT_FAMILY) {
 920                 os << '}';
 921                 ++count;
 922                 env = true; // Size change need not bother about closing env.
 923         }
 924         if (f.series() != INHERIT_SERIES) {
 925                 os << '}';
 926                 ++count;
 927                 env = true; // Size change need not bother about closing env.
 928         }
 929         if (f.shape() != INHERIT_SHAPE) {
 930                 os << '}';
 931                 ++count;
 932                 env = true; // Size change need not bother about closing env.
 933         }
 934         if (f.color() != LColor::inherit && f.color() != LColor::ignore) {
 935                 os << '}';
 936                 ++count;
 937                 env = true; // Size change need not bother about closing env.
 938         }
 939         if (f.emph() == ON) {
 940                 os << '}';
 941                 ++count;
 942                 env = true; // Size change need not bother about closing env.
 943         }
 944         if (f.underbar() == ON) {
 945                 os << '}';
 946                 ++count;
 947                 env = true; // Size change need not bother about closing env.
 948         }
 949         if (f.noun() == ON) {
 950                 os << '}';
 951                 ++count;
 952                 env = true; // Size change need not bother about closing env.
 953         }
 954         if (f.size() != INHERIT_SIZE) {
 955                 // We only have to close if only size changed
 956                 if (!env) {
 957                         os << '}';
 958                         ++count;
 959                 }
 960         }
 961
 962         if (number() == ON && next.number() != ON &&
 963             language()->lang() == "hebrew") {
 964                 os << "\\endL}";
 965                 count += 6;
 966         }
 967
 968         if (language() != base.language() && language() != next.language()) {
 969                 os << "}";
 970                 ++count;
 971         }
 972
 973         return count;
 974 }
 975
 976
 977 LColor::color LyXFont::realColor() const
 978 {
 979         if (color() == LColor::none)
 980                 return LColor::foreground;
 981         return color();
 982 }
 983
 984
 985 // Convert logical attributes to concrete shape attribute
 986 LyXFont::FONT_SHAPE LyXFont::realShape() const
 987 {
 988         register FONT_SHAPE s = shape();
 989
 990         if (emph() == ON) {
 991                 if (s == UP_SHAPE)
 992                         s = ITALIC_SHAPE;
 993                 else
 994                         s = UP_SHAPE;
 995         }
 996         if (noun() == ON)
 997                 s = SMALLCAPS_SHAPE;
 998         return s;
 999 }
1000
1001
1002 ostream & operator<<(ostream & o, LyXFont::FONT_MISC_STATE fms)
1003 {
1004         return o << int(fms);
1005 }