src/lyxfont.C

   1 /* This file is part of
   2  * ======================================================
   3  *
   4  *           LyX, The Document Processor
   5  *
   6  *           Copyright 1995 Matthias Ettrich
   7  *           Copyright 1995-2001 The LyX Team.
   8  *
   9  * ====================================================== */
  10
  11 #include <config.h>
  12 #include <clocale>
  13 #include <cctype>
  14
  15 #ifdef __GNUG__
  16 #pragma implementation
  17 #endif
  18
  19
  20 #include "gettext.h"
  21 #include "lyxfont.h"
  22 #include "debug.h"
  23 #include "lyxrc.h"
  24 #include "lyxlex.h"
  25 #include "language.h"
  26 #include "support/lstrings.h"
  27 #include "bufferparams.h" // stateText
  28
  29 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[LyXFont::NUM_FAMILIES + 2 /* default & error */] =
  43 { N_("Roman"), N_("Sans serif"), N_("Typewriter"), N_("Symbol"),
  44   "cmr", "cmsy", "cmm", "cmex", "msa", "msb", "eufrak", "wasy",
  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[LyXFont::NUM_FAMILIES + 2 /* default & error */] =
  67 { "roman", "sans", "typewriter", "symbol",
  68   "cmr", "cmsy", "cmm", "cmex", "msa", "msb", "eufrak", "wasy",
  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 operator==(LyXFont::FontBits const & lhs,
 142                 LyXFont::FontBits const & rhs)
 143 {
 144         return lhs.family == rhs.family &&
 145                 lhs.series == rhs.series &&
 146                 lhs.shape == rhs.shape &&
 147                 lhs.size == rhs.size &&
 148                 lhs.color == rhs.color &&
 149                 lhs.emph == rhs.emph &&
 150                 lhs.underbar == rhs.underbar &&
 151                 lhs.noun == rhs.noun &&
 152                 lhs.number == rhs.number;
 153 }
 154
 155
 156 LyXFont::LyXFont()
 157         : bits(sane), lang(default_language)
 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 = rtrim(buf, ", ");
 575         return buf;
 576 }
 577
 578
 579 // Set family according to lyx format string
 580 LyXFont & LyXFont::setLyXFamily(string const & fam)
 581 {
 582         string const s = ascii_lowercase(fam);
 583
 584         int i = 0;
 585         while (s != LyXFamilyNames[i] && LyXFamilyNames[i] != "error") ++i;
 586         if (s == LyXFamilyNames[i]) {
 587                 setFamily(LyXFont::FONT_FAMILY(i));
 588         } else
 589                 lyxerr << "LyXFont::setLyXFamily: Unknown family `"
 590                        << s << '\'' << endl;
 591         return *this;
 592 }
 593
 594
 595 // Set series according to lyx format string
 596 LyXFont & LyXFont::setLyXSeries(string const & ser)
 597 {
 598         string const s = ascii_lowercase(ser);
 599
 600         int i = 0;
 601         while (s != LyXSeriesNames[i] && LyXSeriesNames[i] != "error") ++i;
 602         if (s == LyXSeriesNames[i]) {
 603                 setSeries(LyXFont::FONT_SERIES(i));
 604         } else
 605                 lyxerr << "LyXFont::setLyXSeries: Unknown series `"
 606                        << s << '\'' << endl;
 607         return *this;
 608 }
 609
 610
 611 // Set shape according to lyx format string
 612 LyXFont & LyXFont::setLyXShape(string const & sha)
 613 {
 614         string const s = ascii_lowercase(sha);
 615
 616         int i = 0;
 617         while (s != LyXShapeNames[i] && LyXShapeNames[i] != "error") ++i;
 618         if (s == LyXShapeNames[i]) {
 619                 setShape(LyXFont::FONT_SHAPE(i));
 620         } else
 621                 lyxerr << "LyXFont::setLyXShape: Unknown shape `"
 622                        << s << '\'' << endl;
 623         return *this;
 624 }
 625
 626
 627 // Set size according to lyx format string
 628 LyXFont & LyXFont::setLyXSize(string const & siz)
 629 {
 630         string const s = ascii_lowercase(siz);
 631         int i = 0;
 632         while (s != LyXSizeNames[i] && LyXSizeNames[i] != "error") ++i;
 633         if (s == LyXSizeNames[i]) {
 634                 setSize(LyXFont::FONT_SIZE(i));
 635         } else
 636                 lyxerr << "LyXFont::setLyXSize: Unknown size `"
 637                        << s << '\'' << endl;
 638         return *this;
 639 }
 640
 641
 642 // Set size according to lyx format string
 643 LyXFont::FONT_MISC_STATE LyXFont::setLyXMisc(string const & siz)
 644 {
 645         string const s = ascii_lowercase(siz);
 646         int i = 0;
 647         while (s != LyXMiscNames[i] && LyXMiscNames[i] != "error") ++i;
 648         if (s == LyXMiscNames[i])
 649                 return FONT_MISC_STATE(i);
 650         lyxerr << "LyXFont::setLyXMisc: Unknown misc flag `"
 651                << s << '\'' << endl;
 652         return OFF;
 653 }
 654
 655
 656 /// Sets color after LyX text format
 657 LyXFont & LyXFont::setLyXColor(string const & col)
 658 {
 659         setColor(lcolor.getFromLyXName(col));
 660         return *this;
 661 }
 662
 663
 664 // Returns size in latex format
 665 string const LyXFont::latexSize() const
 666 {
 667         return LaTeXSizeNames[size()];
 668 }
 669
 670
 671 // Read a font definition from given file in lyx format
 672 // Used for layouts
 673 LyXFont & LyXFont::lyxRead(LyXLex & lex)
 674 {
 675         bool error = false;
 676         bool finished = false;
 677         while (!finished && lex.isOK() && !error) {
 678                 lex.next();
 679                 string const tok = ascii_lowercase(lex.getString());
 680
 681                 if (tok.empty()) {
 682                         continue;
 683                 } else if (tok == "endfont") {
 684                         finished = true;
 685                 } else if (tok == "family") {
 686                         lex.next();
 687                         string const ttok = lex.getString();
 688                         setLyXFamily(ttok);
 689                 } else if (tok == "series") {
 690                         lex.next();
 691                         string const ttok = lex.getString();
 692                         setLyXSeries(ttok);
 693                 } else if (tok == "shape") {
 694                         lex.next();
 695                         string const ttok = lex.getString();
 696                         setLyXShape(ttok);
 697                 } else if (tok == "size") {
 698                         lex.next();
 699                         string const ttok = lex.getString();
 700                         setLyXSize(ttok);
 701                 } else if (tok == "misc") {
 702                         lex.next();
 703                         string const ttok = ascii_lowercase(lex.getString());
 704
 705                         if (ttok == "no_bar") {
 706                                 setUnderbar(OFF);
 707                         } else if (ttok == "no_emph") {
 708                                 setEmph(OFF);
 709                         } else if (ttok == "no_noun") {
 710                                 setNoun(OFF);
 711                         } else if (ttok == "emph") {
 712                                 setEmph(ON);
 713                         } else if (ttok == "underbar") {
 714                                 setUnderbar(ON);
 715                         } else if (ttok == "noun") {
 716                                 setNoun(ON);
 717                         } else {
 718                                 lex.printError("Illegal misc type `$$Token´");
 719                         }
 720                 } else if (tok == "color") {
 721                         lex.next();
 722                         string const ttok = lex.getString();
 723                         setLyXColor(ttok);
 724                 } else {
 725                         lex.printError("Unknown tag `$$Token'");
 726                         error = true;
 727                 }
 728         }
 729         return *this;
 730 }
 731
 732
 733 /// Writes the changes from this font to orgfont in .lyx format in file
 734 void LyXFont::lyxWriteChanges(LyXFont const & orgfont,
 735 #ifdef INHERIT_LANGUAGE
 736                               Language const * doclang,
 737 #endif
 738                               ostream & os) const
 739 {
 740         os << "\n";
 741         if (orgfont.family() != family()) {
 742                 os << "\\family " << LyXFamilyNames[family()] << " \n";
 743         }
 744         if (orgfont.series() != series()) {
 745                 os << "\\series " << LyXSeriesNames[series()] << " \n";
 746         }
 747         if (orgfont.shape() != shape()) {
 748                 os << "\\shape " << LyXShapeNames[shape()] << " \n";
 749         }
 750         if (orgfont.size() != size()) {
 751                 os << "\\size " << LyXSizeNames[size()] << " \n";
 752         }
 753         if (orgfont.emph() != emph()) {
 754                 os << "\\emph " << LyXMiscNames[emph()] << " \n";
 755         }
 756         if (orgfont.number() != number()) {
 757                 os << "\\numeric " << LyXMiscNames[number()] << " \n";
 758         }
 759         if (orgfont.underbar() != underbar()) {
 760                 // This is only for backwards compatibility
 761                 switch (underbar()) {
 762                 case OFF:       os << "\\bar no \n"; break;
 763                 case ON:        os << "\\bar under \n"; break;
 764                 case TOGGLE:    lyxerr << "LyXFont::lyxWriteFontChanges: "
 765                                         "TOGGLE should not appear here!"
 766                                        << endl;
 767                 break;
 768                 case INHERIT:   os << "\\bar default \n"; break;
 769                 case IGNORE:    lyxerr << "LyXFont::lyxWriteFontChanges: "
 770                                         "IGNORE should not appear here!"
 771                                        << endl;
 772                 break;
 773                 }
 774         }
 775         if (orgfont.noun() != noun()) {
 776                 os << "\\noun " << LyXMiscNames[noun()] << " \n";
 777         }
 778         if (orgfont.color() != color()) {
 779                 // To make us file compatible with older
 780                 // lyx versions we emit "default" instead
 781                 // of "inherit"
 782                 string col_str(lcolor.getLyXName(color()));
 783                 if (col_str == "inherit") col_str = "default";
 784                 os << "\\color " << col_str << "\n";
 785         }
 786         if (orgfont.language() != language()) {
 787 #ifndef INHERIT_LANGUAGE
 788                 if (language())
 789 #else
 790                 if (language() == inherit_language)
 791                         os << "\\lang " << doclang->lang() << "\n";
 792                 else if (language())
 793 #endif
 794                         os << "\\lang " << language()->lang() << "\n";
 795                 else
 796                         os << "\\lang unknown\n";
 797         }
 798 }
 799
 800
 801 /// Writes the head of the LaTeX needed to impose this font
 802 // Returns number of chars written.
 803 int LyXFont::latexWriteStartChanges(ostream & os, LyXFont const & base,
 804                                     LyXFont const & prev) const
 805 {
 806         int count = 0;
 807         bool env = false;
 808
 809         if (language()->babel() != base.language()->babel() &&
 810             language() != prev.language()) {
 811                 if (isRightToLeft() != prev.isRightToLeft()) {
 812                         if (isRightToLeft()) {
 813                                 os << "\\R{";
 814                                 count += 3;
 815                         } else {
 816                                 os << "\\L{";
 817                                 count += 3;
 818                         }
 819                 } else {
 820                         string const tmp =
 821                                 subst(lyxrc.language_command_local,
 822                                       "$$lang", language()->babel());
 823                         os << tmp;
 824                         count += tmp.length();
 825                 }
 826         }
 827
 828         if (number() == ON && prev.number() != ON &&
 829             language()->lang() == "hebrew") {
 830                 os << "{\\beginL ";
 831                 count += 9;
 832         }
 833
 834         LyXFont f = *this;
 835         f.reduce(base);
 836
 837         if (f.family() != INHERIT_FAMILY) {
 838                 os << '\\'
 839                    << LaTeXFamilyNames[f.family()]
 840                    << '{';
 841                 count += strlen(LaTeXFamilyNames[f.family()]) + 2;
 842                 env = true; //We have opened a new environment
 843         }
 844         if (f.series() != INHERIT_SERIES) {
 845                 os << '\\'
 846                    << LaTeXSeriesNames[f.series()]
 847                    << '{';
 848                 count += strlen(LaTeXSeriesNames[f.series()]) + 2;
 849                 env = true; //We have opened a new environment
 850         }
 851         if (f.shape() != INHERIT_SHAPE) {
 852                 os << '\\'
 853                    << LaTeXShapeNames[f.shape()]
 854                    << '{';
 855                 count += strlen(LaTeXShapeNames[f.shape()]) + 2;
 856                 env = true; //We have opened a new environment
 857         }
 858         if (f.color() != LColor::inherit && f.color() != LColor::ignore) {
 859                 os << "\\textcolor{"
 860                    << lcolor.getLaTeXName(f.color())
 861                    << "}{";
 862                 count += lcolor.getLaTeXName(f.color()).length() + 13;
 863                 env = true; //We have opened a new environment
 864         }
 865         if (f.emph() == ON) {
 866                 os << "\\emph{";
 867                 count += 6;
 868                 env = true; //We have opened a new environment
 869         }
 870         if (f.underbar() == ON) {
 871                 os << "\\underbar{";
 872                 count += 10;
 873                 env = true; //We have opened a new environment
 874         }
 875         // \noun{} is a LyX special macro
 876         if (f.noun() == ON) {
 877                 os << "\\noun{";
 878                 count += 8;
 879                 env = true; //We have opened a new environment
 880         }
 881         if (f.size() != INHERIT_SIZE) {
 882                 // If we didn't open an environment above, we open one here
 883                 if (!env) {
 884                         os << '{';
 885                         ++count;
 886                 }
 887                 os << '\\'
 888                    << LaTeXSizeNames[f.size()]
 889                    << ' ';
 890                 count += strlen(LaTeXSizeNames[f.size()]) + 2;
 891         }
 892         return count;
 893 }
 894
 895
 896 /// Writes ending block of LaTeX needed to close use of this font
 897 // Returns number of chars written
 898 // This one corresponds to latexWriteStartChanges(). (Asger)
 899 int LyXFont::latexWriteEndChanges(ostream & os, LyXFont const & base,
 900                                   LyXFont const & next) const
 901 {
 902         int count = 0;
 903         bool env = false;
 904
 905         // reduce the current font to changes against the base
 906         // font (of the layout). We use a temporary for this to
 907         // avoid changing this font instance, as that would break
 908         LyXFont f = *this;
 909         f.reduce(base);
 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 }