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 // Names for the GUI
  38 //
  39
  40 namespace {
  41
  42 char const * GUIFamilyNames[12] =
  43 { N_("Roman"), N_("Sans serif"), N_("Typewriter"), N_("Symbol"),
  44   "cmr", "cmsy", "cmm", "cmex", "msa", "msb",
  45   N_("Inherit"), 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[12] =
  67 { "roman", "sans", "typewriter", "symbol",
  68   "cmr", "cmsy", "cmm", "cmex", "msa", "msb",
  69   "default", "error" };
  70
  71 char const * LyXSeriesNames[4] =
  72 { "medium", "bold", "default", "error" };
  73
  74 char const * LyXShapeNames[6] =
  75 { "up", "italic", "slanted", "smallcaps", "default", "error" };
  76
  77 char const * LyXSizeNames[14] =
  78 { "tiny", "scriptsize", "footnotesize", "small", "normal", "large",
  79   "larger", "largest", "huge", "giant",
  80   "increase", "decrease", "default", "error" };
  81
  82 char const * LyXMiscNames[5] =
  83 { "off", "on", "toggle", "default", "error" };
  84
  85 //
  86 // Strings used to write LaTeX files
  87 //
  88 char const * LaTeXFamilyNames[6] =
  89 { "textrm", "textsf", "texttt", "error1", "error2", "error3" };
  90
  91 char const * LaTeXSeriesNames[4] =
  92 { "textmd", "textbf", "error4", "error5" };
  93
  94 char const * LaTeXShapeNames[6] =
  95 { "textup", "textit", "textsl", "textsc", "error6", "error7" };
  96
  97 char const * LaTeXSizeNames[14] =
  98 { "tiny", "scriptsize", "footnotesize", "small", "normalsize", "large",
  99   "Large", "LARGE", "huge", "Huge", "error8", "error9", "error10", "error11" };
 100
 101 } // namespace anon
 102
 103
 104 // Initialize static member
 105 LyXFont::FontBits LyXFont::sane = {
 106         ROMAN_FAMILY,
 107         MEDIUM_SERIES,
 108         UP_SHAPE,
 109         SIZE_NORMAL,
 110         LColor::none,
 111         OFF,
 112         OFF,
 113         OFF,
 114         OFF };
 115
 116 // Initialize static member
 117 LyXFont::FontBits LyXFont::inherit = {
 118         INHERIT_FAMILY,
 119         INHERIT_SERIES,
 120         INHERIT_SHAPE,
 121         INHERIT_SIZE,
 122         LColor::inherit,
 123         INHERIT,
 124         INHERIT,
 125         INHERIT,
 126         OFF };
 127
 128 // Initialize static member
 129 LyXFont::FontBits LyXFont::ignore = {
 130         IGNORE_FAMILY,
 131         IGNORE_SERIES,
 132         IGNORE_SHAPE,
 133         IGNORE_SIZE,
 134         LColor::ignore,
 135         IGNORE,
 136         IGNORE,
 137         IGNORE,
 138         IGNORE };
 139
 140
 141 bool LyXFont::FontBits::operator==(LyXFont::FontBits const & fb1) const
 142 {
 143         return fb1.family == family &&
 144                 fb1.series == series &&
 145                 fb1.shape == shape &&
 146                 fb1.size == size &&
 147                 fb1.color == color &&
 148                 fb1.emph == emph &&
 149                 fb1.underbar == underbar &&
 150                 fb1.noun == noun &&
 151                 fb1.number == number;
 152 }
 153
 154
 155 bool LyXFont::FontBits::operator!=(LyXFont::FontBits const & fb1) const
 156 {
 157         return !(fb1 == *this);
 158 }
 159
 160
 161 LyXFont::LyXFont(LyXFont::FONT_INIT1)
 162 #ifndef INHERIT_LANGUAGE
 163         : bits(inherit), lang(default_language)
 164 #else
 165         : bits(inherit), lang(inherit_language)
 166 #endif
 167 {}
 168
 169
 170 LyXFont::LyXFont(LyXFont::FONT_INIT2)
 171         : bits(ignore), lang(ignore_language)
 172 {}
 173
 174
 175 LyXFont::LyXFont(LyXFont::FONT_INIT3)
 176         : bits(sane), lang(default_language)
 177 {}
 178
 179
 180 LyXFont::LyXFont(LyXFont::FONT_INIT1, Language const * l)
 181         : bits(inherit), lang(l)
 182 {}
 183
 184
 185 LyXFont::LyXFont(LyXFont::FONT_INIT2, Language const * l)
 186         : bits(ignore), lang(l)
 187 {}
 188
 189
 190 LyXFont::LyXFont(LyXFont::FONT_INIT3, Language const * l)
 191         : bits(sane), lang(l)
 192 {}
 193
 194
 195 LyXFont::FONT_MISC_STATE LyXFont::underbar() const
 196 {
 197         return bits.underbar;
 198 }
 199
 200
 201 LColor::color LyXFont::color() const
 202 {
 203         return bits.color;
 204 }
 205
 206
 207 Language const * LyXFont::language() const
 208 {
 209         return lang;
 210 }
 211
 212
 213 LyXFont::FONT_MISC_STATE LyXFont::number() const
 214 {
 215         return bits.number;
 216 }
 217
 218
 219 bool LyXFont::isRightToLeft() const
 220 {
 221         return lang->RightToLeft();
 222 }
 223
 224
 225 bool LyXFont::isVisibleRightToLeft() const
 226 {
 227         return (lang->RightToLeft() &&
 228                 number() != ON);
 229 }
 230
 231
 232 LyXFont & LyXFont::setFamily(LyXFont::FONT_FAMILY f)
 233 {
 234         bits.family = f;
 235         return *this;
 236 }
 237
 238
 239 LyXFont & LyXFont::setSeries(LyXFont::FONT_SERIES s)
 240 {
 241         bits.series = s;
 242         return *this;
 243 }
 244
 245
 246 LyXFont & LyXFont::setShape(LyXFont::FONT_SHAPE s)
 247 {
 248         bits.shape = s;
 249         return *this;
 250 }
 251
 252
 253 LyXFont & LyXFont::setSize(LyXFont::FONT_SIZE s)
 254 {
 255         bits.size = s;
 256         return *this;
 257 }
 258
 259
 260 LyXFont & LyXFont::setEmph(LyXFont::FONT_MISC_STATE e)
 261 {
 262         bits.emph = e;
 263         return *this;
 264 }
 265
 266
 267 LyXFont & LyXFont::setUnderbar(LyXFont::FONT_MISC_STATE u)
 268 {
 269         bits.underbar = u;
 270         return *this;
 271 }
 272
 273
 274 LyXFont & LyXFont::setNoun(LyXFont::FONT_MISC_STATE n)
 275 {
 276         bits.noun = n;
 277         return *this;
 278 }
 279
 280
 281 LyXFont & LyXFont::setColor(LColor::color c)
 282 {
 283         bits.color = c;
 284         return *this;
 285 }
 286
 287
 288 LyXFont & LyXFont::setLanguage(Language const * l)
 289 {
 290         lang = l;
 291         return *this;
 292 }
 293
 294
 295 LyXFont & LyXFont::setNumber(LyXFont::FONT_MISC_STATE n)
 296 {
 297         bits.number = n;
 298         return *this;
 299 }
 300
 301
 302 /// Decreases font size by one
 303 LyXFont & LyXFont::decSize()
 304 {
 305         switch (size()) {
 306         case SIZE_HUGER:        setSize(SIZE_HUGE);     break;
 307         case SIZE_HUGE:         setSize(SIZE_LARGEST);  break;
 308         case SIZE_LARGEST:      setSize(SIZE_LARGER);   break;
 309         case SIZE_LARGER:       setSize(SIZE_LARGE);    break;
 310         case SIZE_LARGE:        setSize(SIZE_NORMAL);   break;
 311         case SIZE_NORMAL:       setSize(SIZE_SMALL);    break;
 312         case SIZE_SMALL:        setSize(SIZE_FOOTNOTE); break;
 313         case SIZE_FOOTNOTE:     setSize(SIZE_SCRIPT);   break;
 314         case SIZE_SCRIPT:       setSize(SIZE_TINY);     break;
 315         case SIZE_TINY:         break;
 316         case INCREASE_SIZE:
 317                 lyxerr << "Can't LyXFont::decSize on INCREASE_SIZE" << endl;
 318                 break;
 319         case DECREASE_SIZE:
 320                 lyxerr <<"Can't LyXFont::decSize on DECREASE_SIZE" << endl;
 321                 break;
 322         case INHERIT_SIZE:
 323                 lyxerr <<"Can't LyXFont::decSize on INHERIT_SIZE" << endl;
 324                 break;
 325         case IGNORE_SIZE:
 326                 lyxerr <<"Can't LyXFont::decSize on IGNORE_SIZE" << endl;
 327                 break;
 328         }
 329         return *this;
 330 }
 331
 332
 333 /// Increases font size by one
 334 LyXFont & LyXFont::incSize()
 335 {
 336         switch (size()) {
 337         case SIZE_HUGER:        break;
 338         case SIZE_HUGE:         setSize(SIZE_HUGER);    break;
 339         case SIZE_LARGEST:      setSize(SIZE_HUGE);     break;
 340         case SIZE_LARGER:       setSize(SIZE_LARGEST);  break;
 341         case SIZE_LARGE:        setSize(SIZE_LARGER);   break;
 342         case SIZE_NORMAL:       setSize(SIZE_LARGE);    break;
 343         case SIZE_SMALL:        setSize(SIZE_NORMAL);   break;
 344         case SIZE_FOOTNOTE:     setSize(SIZE_SMALL);    break;
 345         case SIZE_SCRIPT:       setSize(SIZE_FOOTNOTE); break;
 346         case SIZE_TINY:         setSize(SIZE_SCRIPT);   break;
 347         case INCREASE_SIZE:
 348                 lyxerr <<"Can't LyXFont::incSize on INCREASE_SIZE" << endl;
 349                 break;
 350         case DECREASE_SIZE:
 351                 lyxerr <<"Can't LyXFont::incSize on DECREASE_SIZE" << endl;
 352                 break;
 353         case INHERIT_SIZE:
 354                 lyxerr <<"Can't LyXFont::incSize on INHERIT_SIZE" << endl;
 355                 break;
 356         case IGNORE_SIZE:
 357                 lyxerr <<"Can't LyXFont::incSize on IGNORE_SIZE" << endl;
 358                 break;
 359         }
 360         return *this;
 361 }
 362
 363
 364 /// Updates a misc setting according to request
 365 LyXFont::FONT_MISC_STATE LyXFont::setMisc(FONT_MISC_STATE newfont,
 366                                           FONT_MISC_STATE org)
 367 {
 368         if (newfont == TOGGLE) {
 369                 if (org == ON)
 370                         return OFF;
 371                 else if (org == OFF)
 372                         return ON;
 373                 else {
 374                         lyxerr <<"LyXFont::setMisc: Need state"
 375                                 " ON or OFF to toggle. Setting to ON" << endl;
 376                         return ON;
 377                 }
 378         } else if (newfont == IGNORE)
 379                 return org;
 380         else
 381                 return newfont;
 382 }
 383
 384
 385 /// Updates font settings according to request
 386 void LyXFont::update(LyXFont const & newfont,
 387                      Language const * document_language,
 388                      bool toggleall)
 389 {
 390         if (newfont.family() == family() && toggleall)
 391                 setFamily(INHERIT_FAMILY); // toggle 'back'
 392         else if (newfont.family() != IGNORE_FAMILY)
 393                 setFamily(newfont.family());
 394         // else it's IGNORE_SHAPE
 395
 396         // "Old" behaviour: "Setting" bold will toggle bold on/off.
 397         switch (newfont.series()) {
 398         case BOLD_SERIES:
 399                 // We toggle...
 400                 if (series() == BOLD_SERIES && toggleall)
 401                         setSeries(MEDIUM_SERIES);
 402                 else
 403                         setSeries(BOLD_SERIES);
 404                 break;
 405         case MEDIUM_SERIES:
 406         case INHERIT_SERIES:
 407                 setSeries(newfont.series());
 408                 break;
 409         case IGNORE_SERIES:
 410                 break;
 411         }
 412
 413         if (newfont.shape() == shape() && toggleall)
 414                 setShape(INHERIT_SHAPE); // toggle 'back'
 415         else if (newfont.shape() != IGNORE_SHAPE)
 416                 setShape(newfont.shape());
 417         // else it's IGNORE_SHAPE
 418
 419         if (newfont.size() != IGNORE_SIZE) {
 420                 if (newfont.size() == INCREASE_SIZE)
 421                         incSize();
 422                 else if (newfont.size() == DECREASE_SIZE)
 423                         decSize();
 424                 else
 425                         setSize(newfont.size());
 426         }
 427
 428         setEmph(setMisc(newfont.emph(), emph()));
 429         setUnderbar(setMisc(newfont.underbar(), underbar()));
 430         setNoun(setMisc(newfont.noun(), noun()));
 431
 432         setNumber(setMisc(newfont.number(), number()));
 433         if (newfont.language() == language() && toggleall)
 434                 if (language() == document_language)
 435                         setLanguage(default_language);
 436                 else
 437 #ifndef INHERIT_LANGUAGE
 438                         setLanguage(document_language);
 439 #else
 440                         setLanguage(inherit_language);
 441 #endif
 442         else if (newfont.language() != ignore_language)
 443                 setLanguage(newfont.language());
 444
 445         if (newfont.color() == color() && toggleall)
 446                 setColor(LColor::inherit); // toggle 'back'
 447         else if (newfont.color() != LColor::ignore)
 448                 setColor(newfont.color());
 449 }
 450
 451
 452 /// Reduce font to fall back to template where possible
 453 void LyXFont::reduce(LyXFont const & tmplt)
 454 {
 455         if (family() == tmplt.family())
 456                 setFamily(INHERIT_FAMILY);
 457         if (series() == tmplt.series())
 458                 setSeries(INHERIT_SERIES);
 459         if (shape() == tmplt.shape())
 460                 setShape(INHERIT_SHAPE);
 461         if (size() == tmplt.size())
 462                 setSize(INHERIT_SIZE);
 463         if (emph() == tmplt.emph())
 464                 setEmph(INHERIT);
 465         if (underbar() == tmplt.underbar())
 466                 setUnderbar(INHERIT);
 467         if (noun() == tmplt.noun())
 468                 setNoun(INHERIT);
 469         if (color() == tmplt.color())
 470                 setColor(LColor::inherit);
 471 #ifdef INHERIT_LANGUAGE
 472         if (language() == tmplt.language())
 473                 setLanguage(inherit_language);
 474 #endif
 475 }
 476
 477
 478 /// Realize font from a template
 479 #ifndef INHERIT_LANGUAGE
 480 LyXFont & LyXFont::realize(LyXFont const & tmplt)
 481 #else
 482 LyXFont & LyXFont::realize(LyXFont const & tmplt, Language const * deflang)
 483 #endif
 484 {
 485 #ifdef INHERIT_LANGUAGE
 486         if (language() == inherit_language) {
 487                 if (tmplt.language() == inherit_language ||
 488                         tmplt.language() == ignore_language ||
 489                         tmplt.language() == default_language)
 490                 {
 491                         setLanguage(deflang);
 492                 } else {
 493                         setLanguage(tmplt.language());
 494                 }
 495         }
 496 #endif
 497         if (bits == inherit) {
 498                 bits = tmplt.bits;
 499                 return *this;
 500         }
 501
 502         if (bits.family == INHERIT_FAMILY) {
 503                 bits.family = tmplt.bits.family;
 504         }
 505         if (bits.series == INHERIT_SERIES) {
 506                 bits.series = tmplt.bits.series;
 507         }
 508         if (bits.shape == INHERIT_SHAPE) {
 509                 bits.shape = tmplt.bits.shape;
 510         }
 511         if (bits.size == INHERIT_SIZE) {
 512                 bits.size = tmplt.bits.size;
 513         }
 514         if (bits.emph == INHERIT) {
 515                 bits.emph = tmplt.bits.emph;
 516         }
 517         if (bits.underbar == INHERIT) {
 518                 bits.underbar = tmplt.bits.underbar;
 519         }
 520         if (bits.noun == INHERIT) {
 521                 bits.noun = tmplt.bits.noun;
 522         }
 523         if (bits.color == LColor::inherit) {
 524                 bits.color = tmplt.bits.color;
 525         }
 526         return *this;
 527 }
 528
 529
 530 /// Is font resolved?
 531 bool LyXFont::resolved() const
 532 {
 533         return (family() != INHERIT_FAMILY && series() != INHERIT_SERIES &&
 534                 shape() != INHERIT_SHAPE && size() != INHERIT_SIZE &&
 535                 emph() != INHERIT && underbar() != INHERIT &&
 536                 noun() != INHERIT &&
 537 #ifdef INHERIT_LANGUAGE
 538                 language() != inherit_language &&
 539 #endif
 540                 color() != LColor::inherit);
 541 }
 542
 543
 544 /// Build GUI description of font state
 545 string const LyXFont::stateText(BufferParams * params) const
 546 {
 547         ostringstream ost;
 548         if (family() != INHERIT_FAMILY)
 549                 ost << _(GUIFamilyNames[family()]) << ", ";
 550         if (series() != INHERIT_SERIES)
 551                 ost << _(GUISeriesNames[series()]) << ", ";
 552         if (shape() != INHERIT_SHAPE)
 553                 ost << _(GUIShapeNames[shape()]) << ", ";
 554         if (size() != INHERIT_SIZE)
 555                 ost << _(GUISizeNames[size()]) << ", ";
 556         if (color() != LColor::inherit)
 557                 ost << lcolor.getGUIName(color()) << ", ";
 558         if (emph() != INHERIT)
 559                 ost << _("Emphasis ")
 560                     << _(GUIMiscNames[emph()]) << ", ";
 561         if (underbar() != INHERIT)
 562                 ost << _("Underline ")
 563                     << _(GUIMiscNames[underbar()]) << ", ";
 564         if (noun() != INHERIT)
 565                 ost << _("Noun ") << _(GUIMiscNames[noun()]) << ", ";
 566         if (bits == inherit)
 567                 ost << _("Default") << ", ";
 568         if (!params || (language() != params->language))
 569                 ost << _("Language: ") << _(language()->display()) << ", ";
 570         if (number() != OFF)
 571                 ost << _("  Number ") << _(GUIMiscNames[number()]);
 572
 573         string buf(ost.str().c_str());
 574         buf = strip(buf, ' ');
 575         buf = strip(buf, ',');
 576         return buf;
 577 }
 578
 579
 580 // Set family according to lyx format string
 581 LyXFont & LyXFont::setLyXFamily(string const & fam)
 582 {
 583         string const s = lowercase(fam);
 584
 585         int i = 0;
 586         while (s != LyXFamilyNames[i] && LyXFamilyNames[i] != "error") ++i;
 587         if (s == LyXFamilyNames[i]) {
 588                 setFamily(LyXFont::FONT_FAMILY(i));
 589         } else
 590                 lyxerr << "LyXFont::setLyXFamily: Unknown family `"
 591                        << s << '\'' << endl;
 592         return *this;
 593 }
 594
 595
 596 // Set series according to lyx format string
 597 LyXFont & LyXFont::setLyXSeries(string const & ser)
 598 {
 599         string const s = lowercase(ser);
 600
 601         int i = 0;
 602         while (s != LyXSeriesNames[i] && LyXSeriesNames[i] != "error") ++i;
 603         if (s == LyXSeriesNames[i]) {
 604                 setSeries(LyXFont::FONT_SERIES(i));
 605         } else
 606                 lyxerr << "LyXFont::setLyXSeries: Unknown series `"
 607                        << s << '\'' << endl;
 608         return *this;
 609 }
 610
 611
 612 // Set shape according to lyx format string
 613 LyXFont & LyXFont::setLyXShape(string const & sha)
 614 {
 615         string const s = lowercase(sha);
 616
 617         int i = 0;
 618         while (s != LyXShapeNames[i] && LyXShapeNames[i] != "error") ++i;
 619         if (s == LyXShapeNames[i]) {
 620                 setShape(LyXFont::FONT_SHAPE(i));
 621         } else
 622                 lyxerr << "LyXFont::setLyXShape: Unknown shape `"
 623                        << s << '\'' << endl;
 624         return *this;
 625 }
 626
 627
 628 // Set size according to lyx format string
 629 LyXFont & LyXFont::setLyXSize(string const & siz)
 630 {
 631         string const s = lowercase(siz);
 632         int i = 0;
 633         while (s != LyXSizeNames[i] && LyXSizeNames[i] != "error") ++i;
 634         if (s == LyXSizeNames[i]) {
 635                 setSize(LyXFont::FONT_SIZE(i));
 636         } else
 637                 lyxerr << "LyXFont::setLyXSize: Unknown size `"
 638                        << s << '\'' << endl;
 639         return *this;
 640 }
 641
 642
 643 // Set size according to lyx format string
 644 LyXFont::FONT_MISC_STATE LyXFont::setLyXMisc(string const & siz)
 645 {
 646         string const s = lowercase(siz);
 647         int i = 0;
 648         while (s != LyXMiscNames[i] && LyXMiscNames[i] != "error") ++i;
 649         if (s == LyXMiscNames[i])
 650                 return FONT_MISC_STATE(i);
 651         lyxerr << "LyXFont::setLyXMisc: Unknown misc flag `"
 652                << s << '\'' << endl;
 653         return OFF;
 654 }
 655
 656
 657 /// Sets color after LyX text format
 658 LyXFont & LyXFont::setLyXColor(string const & col)
 659 {
 660         setColor(lcolor.getFromLyXName(col));
 661         return *this;
 662 }
 663
 664
 665 // Returns size in latex format
 666 string const LyXFont::latexSize() const
 667 {
 668         return LaTeXSizeNames[size()];
 669 }
 670
 671
 672 // Read a font definition from given file in lyx format
 673 // Used for layouts
 674 LyXFont & LyXFont::lyxRead(LyXLex & lex)
 675 {
 676         bool error = false;
 677         bool finished = false;
 678         while (!finished && lex.isOK() && !error) {
 679                 lex.next();
 680                 string const tok = lowercase(lex.getString());
 681
 682                 if (tok.empty()) {
 683                         continue;
 684                 } else if (tok == "endfont") {
 685                         finished = true;
 686                 } else if (tok == "family") {
 687                         lex.next();
 688                         string const ttok = lex.getString();
 689                         setLyXFamily(ttok);
 690                 } else if (tok == "series") {
 691                         lex.next();
 692                         string const ttok = lex.getString();
 693                         setLyXSeries(ttok);
 694                 } else if (tok == "shape") {
 695                         lex.next();
 696                         string const ttok = lex.getString();
 697                         setLyXShape(ttok);
 698                 } else if (tok == "size") {
 699                         lex.next();
 700                         string const ttok = lex.getString();
 701                         setLyXSize(ttok);
 702                 } else if (tok == "misc") {
 703                         lex.next();
 704                         string const ttok = lowercase(lex.getString());
 705
 706                         if (ttok == "no_bar") {
 707                                 setUnderbar(OFF);
 708                         } else if (ttok == "no_emph") {
 709                                 setEmph(OFF);
 710                         } else if (ttok == "no_noun") {
 711                                 setNoun(OFF);
 712                         } else if (ttok == "emph") {
 713                                 setEmph(ON);
 714                         } else if (ttok == "underbar") {
 715                                 setUnderbar(ON);
 716                         } else if (ttok == "noun") {
 717                                 setNoun(ON);
 718                         } else {
 719                                 lex.printError("Illegal misc type `$$Token´");
 720                         }
 721                 } else if (tok == "color") {
 722                         lex.next();
 723                         string const ttok = lex.getString();
 724                         setLyXColor(ttok);
 725                 } else {
 726                         lex.printError("Unknown tag `$$Token'");
 727                         error = true;
 728                 }
 729         }
 730         return *this;
 731 }
 732
 733
 734 /// Writes the changes from this font to orgfont in .lyx format in file
 735 void LyXFont::lyxWriteChanges(LyXFont const & orgfont,
 736 #ifdef INHERIT_LANGUAGE
 737                               Language const * doclang,
 738 #endif
 739                               ostream & os) const
 740 {
 741         os << "\n";
 742         if (orgfont.family() != family()) {
 743                 os << "\\family " << LyXFamilyNames[family()] << " \n";
 744         }
 745         if (orgfont.series() != series()) {
 746                 os << "\\series " << LyXSeriesNames[series()] << " \n";
 747         }
 748         if (orgfont.shape() != shape()) {
 749                 os << "\\shape " << LyXShapeNames[shape()] << " \n";
 750         }
 751         if (orgfont.size() != size()) {
 752                 os << "\\size " << LyXSizeNames[size()] << " \n";
 753         }
 754         if (orgfont.emph() != emph()) {
 755                 os << "\\emph " << LyXMiscNames[emph()] << " \n";
 756         }
 757         if (orgfont.number() != number()) {
 758                 os << "\\numeric " << LyXMiscNames[number()] << " \n";
 759         }
 760         if (orgfont.underbar() != underbar()) {
 761                 // This is only for backwards compatibility
 762                 switch (underbar()) {
 763                 case OFF:       os << "\\bar no \n"; break;
 764                 case ON:        os << "\\bar under \n"; break;
 765                 case TOGGLE:    lyxerr << "LyXFont::lyxWriteFontChanges: "
 766                                         "TOGGLE should not appear here!"
 767                                        << endl;
 768                 break;
 769                 case INHERIT:   os << "\\bar default \n"; break;
 770                 case IGNORE:    lyxerr << "LyXFont::lyxWriteFontChanges: "
 771                                         "IGNORE should not appear here!"
 772                                        << endl;
 773                 break;
 774                 }
 775         }
 776         if (orgfont.noun() != noun()) {
 777                 os << "\\noun " << LyXMiscNames[noun()] << " \n";
 778         }
 779         if (orgfont.color() != color()) {
 780                 // To make us file compatible with older
 781                 // lyx versions we emit "default" instead
 782                 // of "inherit"
 783                 string col_str(lcolor.getLyXName(color()));
 784                 if (col_str == "inherit") col_str = "default";
 785                 os << "\\color " << col_str << "\n";
 786         }
 787         if (orgfont.language() != language()) {
 788 #ifndef INHERIT_LANGUAGE
 789                 if (language())
 790 #else
 791                 if (language() == inherit_language)
 792                         os << "\\lang " << doclang->lang() << "\n";
 793                 else if (language())
 794 #endif
 795                         os << "\\lang " << language()->lang() << "\n";
 796                 else
 797                         os << "\\lang unknown\n";
 798         }
 799 }
 800
 801
 802 /// Writes the head of the LaTeX needed to impose this font
 803 // Returns number of chars written.
 804 int LyXFont::latexWriteStartChanges(ostream & os, LyXFont const & base,
 805                                     LyXFont const & prev) const
 806 {
 807         int count = 0;
 808         bool env = false;
 809
 810         if (language()->babel() != base.language()->babel() &&
 811             language()->babel() != prev.language()->babel()) {
 812                 if (isRightToLeft() != prev.isRightToLeft()) {
 813                         if (isRightToLeft()) {
 814                                 os << "\\R{";
 815                                 count += 3;
 816                         } else {
 817                                 os << "\\L{";
 818                                 count += 3;
 819                         }
 820                 } else {
 821                         string const tmp =
 822                                 subst(lyxrc.language_command_local,
 823                                       "$$lang", language()->babel());
 824                         os << tmp;
 825                         count += tmp.length();
 826                 }
 827         }
 828
 829         if (number() == ON && prev.number() != ON &&
 830             language()->lang() == "hebrew") {
 831                 os << "{\\beginL ";
 832                 count += 9;
 833         }
 834
 835         LyXFont f = *this;
 836         f.reduce(base);
 837
 838         if (f.family() != INHERIT_FAMILY) {
 839                 os << '\\'
 840                    << LaTeXFamilyNames[f.family()]
 841                    << '{';
 842                 count += strlen(LaTeXFamilyNames[f.family()]) + 2;
 843                 env = true; //We have opened a new environment
 844         }
 845         if (f.series() != INHERIT_SERIES) {
 846                 os << '\\'
 847                    << LaTeXSeriesNames[f.series()]
 848                    << '{';
 849                 count += strlen(LaTeXSeriesNames[f.series()]) + 2;
 850                 env = true; //We have opened a new environment
 851         }
 852         if (f.shape() != INHERIT_SHAPE) {
 853                 os << '\\'
 854                    << LaTeXShapeNames[f.shape()]
 855                    << '{';
 856                 count += strlen(LaTeXShapeNames[f.shape()]) + 2;
 857                 env = true; //We have opened a new environment
 858         }
 859         if (f.color() != LColor::inherit && f.color() != LColor::ignore) {
 860                 os << "\\textcolor{"
 861                    << lcolor.getLaTeXName(f.color())
 862                    << "}{";
 863                 count += lcolor.getLaTeXName(f.color()).length() + 13;
 864                 env = true; //We have opened a new environment
 865         }
 866         if (f.emph() == ON) {
 867                 os << "\\emph{";
 868                 count += 6;
 869                 env = true; //We have opened a new environment
 870         }
 871         if (f.underbar() == ON) {
 872                 os << "\\underbar{";
 873                 count += 10;
 874                 env = true; //We have opened a new environment
 875         }
 876         // \noun{} is a LyX special macro
 877         if (f.noun() == ON) {
 878                 os << "\\noun{";
 879                 count += 8;
 880                 env = true; //We have opened a new environment
 881         }
 882         if (f.size() != INHERIT_SIZE) {
 883                 // If we didn't open an environment above, we open one here
 884                 if (!env) {
 885                         os << '{';
 886                         ++count;
 887                 }
 888                 os << '\\'
 889                    << LaTeXSizeNames[f.size()]
 890                    << ' ';
 891                 count += strlen(LaTeXSizeNames[f.size()]) + 2;
 892         }
 893         return count;
 894 }
 895
 896
 897 /// Writes ending block of LaTeX needed to close use of this font
 898 // Returns number of chars written
 899 // This one corresponds to latexWriteStartChanges(). (Asger)
 900 int LyXFont::latexWriteEndChanges(ostream & os, LyXFont const & base,
 901                                   LyXFont const & next) const
 902 {
 903         int count = 0;
 904         bool env = false;
 905
 906         LyXFont f = *this; // why do you need this?
 907         f.reduce(base); // why isn't this just "reduce(base);" (Lgb)
 908         // Because this function is const. Everything breaks if this
 909         // method changes the font it represents. There is no speed penalty
 910         // by using the temporary. (Asger)
 911
 912
 913         if (f.family() != INHERIT_FAMILY) {
 914                 os << '}';
 915                 ++count;
 916                 env = true; // Size change need not bother about closing env.
 917         }
 918         if (f.series() != INHERIT_SERIES) {
 919                 os << '}';
 920                 ++count;
 921                 env = true; // Size change need not bother about closing env.
 922         }
 923         if (f.shape() != INHERIT_SHAPE) {
 924                 os << '}';
 925                 ++count;
 926                 env = true; // Size change need not bother about closing env.
 927         }
 928         if (f.color() != LColor::inherit && f.color() != LColor::ignore) {
 929                 os << '}';
 930                 ++count;
 931                 env = true; // Size change need not bother about closing env.
 932         }
 933         if (f.emph() == ON) {
 934                 os << '}';
 935                 ++count;
 936                 env = true; // Size change need not bother about closing env.
 937         }
 938         if (f.underbar() == ON) {
 939                 os << '}';
 940                 ++count;
 941                 env = true; // Size change need not bother about closing env.
 942         }
 943         if (f.noun() == ON) {
 944                 os << '}';
 945                 ++count;
 946                 env = true; // Size change need not bother about closing env.
 947         }
 948         if (f.size() != INHERIT_SIZE) {
 949                 // We only have to close if only size changed
 950                 if (!env) {
 951                         os << '}';
 952                         ++count;
 953                 }
 954         }
 955
 956         if (number() == ON && next.number() != ON &&
 957             language()->lang() == "hebrew") {
 958                 os << "\\endL}";
 959                 count += 6;
 960         }
 961
 962         if (language() != base.language() && language() != next.language()) {
 963                 os << "}";
 964                 ++count;
 965         }
 966
 967         return count;
 968 }
 969
 970
 971 LColor::color LyXFont::realColor() const
 972 {
 973         if (color() == LColor::none)
 974                 return LColor::foreground;
 975         return color();
 976 }
 977
 978
 979 // Convert logical attributes to concrete shape attribute
 980 LyXFont::FONT_SHAPE LyXFont::realShape() const
 981 {
 982         register FONT_SHAPE s = shape();
 983
 984         if (emph() == ON) {
 985                 if (s == UP_SHAPE)
 986                         s = ITALIC_SHAPE;
 987                 else
 988                         s = UP_SHAPE;
 989         }
 990         if (noun() == ON)
 991                 s = SMALLCAPS_SHAPE;
 992         return s;
 993 }
 994
 995
 996 ostream & operator<<(ostream & o, LyXFont::FONT_MISC_STATE fms)
 997 {
 998         return o << int(fms);
 999 }