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[11] =
  43 { N_("Roman"), N_("Sans serif"), N_("Typewriter"), N_("Symbol"),
  44   "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", "symbol2", "symbol3",
  68         "symbolex", "fraktur", "mathscr", "mathbb", "default", "error" };
  69
  70 char const * LyXSeriesNames[4] =
  71 { "medium", "bold", "default", "error" };
  72
  73 char const * LyXShapeNames[6] =
  74 { "up", "italic", "slanted", "smallcaps", "default", "error" };
  75
  76 char const * LyXSizeNames[14] =
  77 { "tiny", "scriptsize", "footnotesize", "small", "normal", "large",
  78   "larger", "largest", "huge", "giant",
  79   "increase-error", "decrease-error", "default", "error" };
  80
  81 char const * LyXMiscNames[5] =
  82 { "off", "on", "toggle", "default", "error" };
  83
  84 //
  85 // Strings used to write LaTeX files
  86 //
  87 char const * LaTeXFamilyNames[6] =
  88 { "textrm", "textsf", "texttt", "error1", "error2", "error3" };
  89
  90 char const * LaTeXSeriesNames[4] =
  91 { "textmd", "textbf", "error4", "error5" };
  92
  93 char const * LaTeXShapeNames[6] =
  94 { "textup", "textit", "textsl", "textsc", "error6", "error7" };
  95
  96 char const * LaTeXSizeNames[14] =
  97 { "tiny", "scriptsize", "footnotesize", "small", "normalsize", "large",
  98   "Large", "LARGE", "huge", "Huge", "error8", "error9", "error10", "error11" };
  99
 100 } // namespace anon
 101
 102
 103 // Initialize static member
 104 LyXFont::FontBits LyXFont::sane = {
 105         ROMAN_FAMILY,
 106         MEDIUM_SERIES,
 107         UP_SHAPE,
 108         SIZE_NORMAL,
 109         LColor::none,
 110         OFF,
 111         OFF,
 112         OFF,
 113         OFF };
 114
 115 // Initialize static member
 116 LyXFont::FontBits LyXFont::inherit = {
 117         INHERIT_FAMILY,
 118         INHERIT_SERIES,
 119         INHERIT_SHAPE,
 120         INHERIT_SIZE,
 121         LColor::inherit,
 122         INHERIT,
 123         INHERIT,
 124         INHERIT,
 125         OFF };
 126
 127 // Initialize static member
 128 LyXFont::FontBits LyXFont::ignore = {
 129         IGNORE_FAMILY,
 130         IGNORE_SERIES,
 131         IGNORE_SHAPE,
 132         IGNORE_SIZE,
 133         LColor::ignore,
 134         IGNORE,
 135         IGNORE,
 136         IGNORE,
 137         IGNORE };
 138
 139
 140 bool LyXFont::FontBits::operator==(LyXFont::FontBits const & fb1) const
 141 {
 142         return fb1.family == family &&
 143                 fb1.series == series &&
 144                 fb1.shape == shape &&
 145                 fb1.size == size &&
 146                 fb1.color == color &&
 147                 fb1.emph == emph &&
 148                 fb1.underbar == underbar &&
 149                 fb1.noun == noun &&
 150                 fb1.number == number;
 151 }
 152
 153
 154 bool LyXFont::FontBits::operator!=(LyXFont::FontBits const & fb1) const
 155 {
 156         return !(fb1 == *this);
 157 }
 158
 159
 160 LyXFont::LyXFont(LyXFont::FONT_INIT1)
 161 #ifndef INHERIT_LANGUAGE
 162         : bits(inherit), lang(default_language)
 163 #else
 164         : bits(inherit), lang(inherit_language)
 165 #endif
 166 {}
 167
 168
 169 LyXFont::LyXFont(LyXFont::FONT_INIT2)
 170         : bits(ignore), lang(ignore_language)
 171 {}
 172
 173
 174 LyXFont::LyXFont(LyXFont::FONT_INIT3)
 175         : bits(sane), lang(default_language)
 176 {}
 177
 178
 179 LyXFont::LyXFont(LyXFont::FONT_INIT1, Language const * l)
 180         : bits(inherit), lang(l)
 181 {}
 182
 183
 184 LyXFont::LyXFont(LyXFont::FONT_INIT2, Language const * l)
 185         : bits(ignore), lang(l)
 186 {}
 187
 188
 189 LyXFont::LyXFont(LyXFont::FONT_INIT3, Language const * l)
 190         : bits(sane), lang(l)
 191 {}
 192
 193
 194 LyXFont::FONT_MISC_STATE LyXFont::underbar() const
 195 {
 196         return bits.underbar;
 197 }
 198
 199
 200 LColor::color LyXFont::color() const
 201 {
 202         return bits.color;
 203 }
 204
 205
 206 Language const * LyXFont::language() const
 207 {
 208         return lang;
 209 }
 210
 211
 212 LyXFont::FONT_MISC_STATE LyXFont::number() const
 213 {
 214         return bits.number;
 215 }
 216
 217
 218 bool LyXFont::isRightToLeft() const
 219 {
 220         return lang->RightToLeft();
 221 }
 222
 223
 224 bool LyXFont::isVisibleRightToLeft() const
 225 {
 226         return (lang->RightToLeft() &&
 227                 number() != ON);
 228 }
 229
 230
 231 LyXFont & LyXFont::setFamily(LyXFont::FONT_FAMILY f)
 232 {
 233         bits.family = f;
 234         return *this;
 235 }
 236
 237
 238 LyXFont & LyXFont::setSeries(LyXFont::FONT_SERIES s)
 239 {
 240         bits.series = s;
 241         return *this;
 242 }
 243
 244
 245 LyXFont & LyXFont::setShape(LyXFont::FONT_SHAPE s)
 246 {
 247         bits.shape = s;
 248         return *this;
 249 }
 250
 251
 252 LyXFont & LyXFont::setSize(LyXFont::FONT_SIZE s)
 253 {
 254         bits.size = s;
 255         return *this;
 256 }
 257
 258
 259 LyXFont & LyXFont::setEmph(LyXFont::FONT_MISC_STATE e)
 260 {
 261         bits.emph = e;
 262         return *this;
 263 }
 264
 265
 266 LyXFont & LyXFont::setUnderbar(LyXFont::FONT_MISC_STATE u)
 267 {
 268         bits.underbar = u;
 269         return *this;
 270 }
 271
 272
 273 LyXFont & LyXFont::setNoun(LyXFont::FONT_MISC_STATE n)
 274 {
 275         bits.noun = n;
 276         return *this;
 277 }
 278
 279
 280 LyXFont & LyXFont::setColor(LColor::color c)
 281 {
 282         bits.color = c;
 283         return *this;
 284 }
 285
 286
 287 LyXFont & LyXFont::setLanguage(Language const * l)
 288 {
 289         lang = l;
 290         return *this;
 291 }
 292
 293
 294 LyXFont & LyXFont::setNumber(LyXFont::FONT_MISC_STATE n)
 295 {
 296         bits.number = n;
 297         return *this;
 298 }
 299
 300
 301 /// Decreases font size by one
 302 LyXFont & LyXFont::decSize()
 303 {
 304         switch (size()) {
 305         case SIZE_HUGER:        setSize(SIZE_HUGE);     break;
 306         case SIZE_HUGE:         setSize(SIZE_LARGEST);  break;
 307         case SIZE_LARGEST:      setSize(SIZE_LARGER);   break;
 308         case SIZE_LARGER:       setSize(SIZE_LARGE);    break;
 309         case SIZE_LARGE:        setSize(SIZE_NORMAL);   break;
 310         case SIZE_NORMAL:       setSize(SIZE_SMALL);    break;
 311         case SIZE_SMALL:        setSize(SIZE_FOOTNOTE); break;
 312         case SIZE_FOOTNOTE:     setSize(SIZE_SCRIPT);   break;
 313         case SIZE_SCRIPT:       setSize(SIZE_TINY);     break;
 314         case SIZE_TINY:         break;
 315         case INCREASE_SIZE:
 316                 lyxerr << "Can't LyXFont::decSize on INCREASE_SIZE" << endl;
 317                 break;
 318         case DECREASE_SIZE:
 319                 lyxerr <<"Can't LyXFont::decSize on DECREASE_SIZE" << endl;
 320                 break;
 321         case INHERIT_SIZE:
 322                 lyxerr <<"Can't LyXFont::decSize on INHERIT_SIZE" << endl;
 323                 break;
 324         case IGNORE_SIZE:
 325                 lyxerr <<"Can't LyXFont::decSize on IGNORE_SIZE" << endl;
 326                 break;
 327         }
 328         return *this;
 329 }
 330
 331
 332 /// Increases font size by one
 333 LyXFont & LyXFont::incSize()
 334 {
 335         switch (size()) {
 336         case SIZE_HUGER:        break;
 337         case SIZE_HUGE:         setSize(SIZE_HUGER);    break;
 338         case SIZE_LARGEST:      setSize(SIZE_HUGE);     break;
 339         case SIZE_LARGER:       setSize(SIZE_LARGEST);  break;
 340         case SIZE_LARGE:        setSize(SIZE_LARGER);   break;
 341         case SIZE_NORMAL:       setSize(SIZE_LARGE);    break;
 342         case SIZE_SMALL:        setSize(SIZE_NORMAL);   break;
 343         case SIZE_FOOTNOTE:     setSize(SIZE_SMALL);    break;
 344         case SIZE_SCRIPT:       setSize(SIZE_FOOTNOTE); break;
 345         case SIZE_TINY:         setSize(SIZE_SCRIPT);   break;
 346         case INCREASE_SIZE:
 347                 lyxerr <<"Can't LyXFont::incSize on INCREASE_SIZE" << endl;
 348                 break;
 349         case DECREASE_SIZE:
 350                 lyxerr <<"Can't LyXFont::incSize on DECREASE_SIZE" << endl;
 351                 break;
 352         case INHERIT_SIZE:
 353                 lyxerr <<"Can't LyXFont::incSize on INHERIT_SIZE" << endl;
 354                 break;
 355         case IGNORE_SIZE:
 356                 lyxerr <<"Can't LyXFont::incSize on IGNORE_SIZE" << endl;
 357                 break;
 358         }
 359         return *this;
 360 }
 361
 362
 363 /// Updates a misc setting according to request
 364 LyXFont::FONT_MISC_STATE LyXFont::setMisc(FONT_MISC_STATE newfont,
 365                                           FONT_MISC_STATE org)
 366 {
 367         if (newfont == TOGGLE) {
 368                 if (org == ON)
 369                         return OFF;
 370                 else if (org == OFF)
 371                         return ON;
 372                 else {
 373                         lyxerr <<"LyXFont::setMisc: Need state"
 374                                 " ON or OFF to toggle. Setting to ON" << endl;
 375                         return ON;
 376                 }
 377         } else if (newfont == IGNORE)
 378                 return org;
 379         else
 380                 return newfont;
 381 }
 382
 383
 384 /// Updates font settings according to request
 385 void LyXFont::update(LyXFont const & newfont,
 386                      Language const * document_language,
 387                      bool toggleall)
 388 {
 389         if (newfont.family() == family() && toggleall)
 390                 setFamily(INHERIT_FAMILY); // toggle 'back'
 391         else if (newfont.family() != IGNORE_FAMILY)
 392                 setFamily(newfont.family());
 393         // else it's IGNORE_SHAPE
 394
 395         // "Old" behaviour: "Setting" bold will toggle bold on/off.
 396         switch (newfont.series()) {
 397         case BOLD_SERIES:
 398                 // We toggle...
 399                 if (series() == BOLD_SERIES && toggleall)
 400                         setSeries(MEDIUM_SERIES);
 401                 else
 402                         setSeries(BOLD_SERIES);
 403                 break;
 404         case MEDIUM_SERIES:
 405         case INHERIT_SERIES:
 406                 setSeries(newfont.series());
 407                 break;
 408         case IGNORE_SERIES:
 409                 break;
 410         }
 411
 412         if (newfont.shape() == shape() && toggleall)
 413                 setShape(INHERIT_SHAPE); // toggle 'back'
 414         else if (newfont.shape() != IGNORE_SHAPE)
 415                 setShape(newfont.shape());
 416         // else it's IGNORE_SHAPE
 417
 418         if (newfont.size() != IGNORE_SIZE) {
 419                 if (newfont.size() == INCREASE_SIZE)
 420                         incSize();
 421                 else if (newfont.size() == DECREASE_SIZE)
 422                         decSize();
 423                 else
 424                         setSize(newfont.size());
 425         }
 426
 427         setEmph(setMisc(newfont.emph(), emph()));
 428         setUnderbar(setMisc(newfont.underbar(), underbar()));
 429         setNoun(setMisc(newfont.noun(), noun()));
 430
 431         setNumber(setMisc(newfont.number(), number()));
 432         if (newfont.language() == language() && toggleall)
 433                 if (language() == document_language)
 434                         setLanguage(default_language);
 435                 else
 436 #ifndef INHERIT_LANGUAGE
 437                         setLanguage(document_language);
 438 #else
 439                         setLanguage(inherit_language);
 440 #endif
 441         else if (newfont.language() != ignore_language)
 442                 setLanguage(newfont.language());
 443
 444         if (newfont.color() == color() && toggleall)
 445                 setColor(LColor::inherit); // toggle 'back'
 446         else if (newfont.color() != LColor::ignore)
 447                 setColor(newfont.color());
 448 }
 449
 450
 451 /// Reduce font to fall back to template where possible
 452 void LyXFont::reduce(LyXFont const & tmplt)
 453 {
 454         if (family() == tmplt.family())
 455                 setFamily(INHERIT_FAMILY);
 456         if (series() == tmplt.series())
 457                 setSeries(INHERIT_SERIES);
 458         if (shape() == tmplt.shape())
 459                 setShape(INHERIT_SHAPE);
 460         if (size() == tmplt.size())
 461                 setSize(INHERIT_SIZE);
 462         if (emph() == tmplt.emph())
 463                 setEmph(INHERIT);
 464         if (underbar() == tmplt.underbar())
 465                 setUnderbar(INHERIT);
 466         if (noun() == tmplt.noun())
 467                 setNoun(INHERIT);
 468         if (color() == tmplt.color())
 469                 setColor(LColor::inherit);
 470 #ifdef INHERIT_LANGUAGE
 471         if (language() == tmplt.language())
 472                 setLanguage(inherit_language);
 473 #endif
 474 }
 475
 476
 477 /// Realize font from a template
 478 #ifndef INHERIT_LANGUAGE
 479 LyXFont & LyXFont::realize(LyXFont const & tmplt)
 480 #else
 481 LyXFont & LyXFont::realize(LyXFont const & tmplt, Language const * deflang)
 482 #endif
 483 {
 484 #ifdef INHERIT_LANGUAGE
 485         if (language() == inherit_language) {
 486                 if (tmplt.language() == inherit_language ||
 487                         tmplt.language() == ignore_language ||
 488                         tmplt.language() == default_language)
 489                 {
 490                         setLanguage(deflang);
 491                 } else {
 492                         setLanguage(tmplt.language());
 493                 }
 494         }
 495 #endif
 496         if (bits == inherit) {
 497                 bits = tmplt.bits;
 498                 return *this;
 499         }
 500
 501         if (bits.family == INHERIT_FAMILY) {
 502                 bits.family = tmplt.bits.family;
 503         }
 504         if (bits.series == INHERIT_SERIES) {
 505                 bits.series = tmplt.bits.series;
 506         }
 507         if (bits.shape == INHERIT_SHAPE) {
 508                 bits.shape = tmplt.bits.shape;
 509         }
 510         if (bits.size == INHERIT_SIZE) {
 511                 bits.size = tmplt.bits.size;
 512         }
 513         if (bits.emph == INHERIT) {
 514                 bits.emph = tmplt.bits.emph;
 515         }
 516         if (bits.underbar == INHERIT) {
 517                 bits.underbar = tmplt.bits.underbar;
 518         }
 519         if (bits.noun == INHERIT) {
 520                 bits.noun = tmplt.bits.noun;
 521         }
 522         if (bits.color == LColor::inherit) {
 523                 bits.color = tmplt.bits.color;
 524         }
 525         return *this;
 526 }
 527
 528
 529 /// Is font resolved?
 530 bool LyXFont::resolved() const
 531 {
 532         return (family() != INHERIT_FAMILY && series() != INHERIT_SERIES &&
 533                 shape() != INHERIT_SHAPE && size() != INHERIT_SIZE &&
 534                 emph() != INHERIT && underbar() != INHERIT &&
 535                 noun() != INHERIT &&
 536 #ifdef INHERIT_LANGUAGE
 537                 language() != inherit_language &&
 538 #endif
 539                 color() != LColor::inherit);
 540 }
 541
 542
 543 /// Build GUI description of font state
 544 string const LyXFont::stateText(BufferParams * params) const
 545 {
 546         ostringstream ost;
 547         if (family() != INHERIT_FAMILY)
 548                 ost << _(GUIFamilyNames[family()]) << ", ";
 549         if (series() != INHERIT_SERIES)
 550                 ost << _(GUISeriesNames[series()]) << ", ";
 551         if (shape() != INHERIT_SHAPE)
 552                 ost << _(GUIShapeNames[shape()]) << ", ";
 553         if (size() != INHERIT_SIZE)
 554                 ost << _(GUISizeNames[size()]) << ", ";
 555         if (color() != LColor::inherit)
 556                 ost << lcolor.getGUIName(color()) << ", ";
 557         if (emph() != INHERIT)
 558                 ost << _("Emphasis ")
 559                     << _(GUIMiscNames[emph()]) << ", ";
 560         if (underbar() != INHERIT)
 561                 ost << _("Underline ")
 562                     << _(GUIMiscNames[underbar()]) << ", ";
 563         if (noun() != INHERIT)
 564                 ost << _("Noun ") << _(GUIMiscNames[noun()]) << ", ";
 565         if (bits == inherit)
 566                 ost << _("Default") << ", ";
 567         if (!params || (language() != params->language))
 568                 ost << _("Language: ") << _(language()->display()) << ", ";
 569         if (number() != OFF)
 570                 ost << _("  Number ") << _(GUIMiscNames[number()]);
 571
 572         string buf(ost.str().c_str());
 573         buf = strip(buf, ' ');
 574         buf = strip(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 = 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 = 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 = 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 = 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 = 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 = 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 = 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()->babel() != prev.language()->babel()) {
 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         LyXFont f = *this; // why do you need this?
 906         f.reduce(base); // why isn't this just "reduce(base);" (Lgb)
 907         // Because this function is const. Everything breaks if this
 908         // method changes the font it represents. There is no speed penalty
 909         // by using the temporary. (Asger)
 910
 911
 912         if (f.family() != INHERIT_FAMILY) {
 913                 os << '}';
 914                 ++count;
 915                 env = true; // Size change need not bother about closing env.
 916         }
 917         if (f.series() != INHERIT_SERIES) {
 918                 os << '}';
 919                 ++count;
 920                 env = true; // Size change need not bother about closing env.
 921         }
 922         if (f.shape() != INHERIT_SHAPE) {
 923                 os << '}';
 924                 ++count;
 925                 env = true; // Size change need not bother about closing env.
 926         }
 927         if (f.color() != LColor::inherit && f.color() != LColor::ignore) {
 928                 os << '}';
 929                 ++count;
 930                 env = true; // Size change need not bother about closing env.
 931         }
 932         if (f.emph() == ON) {
 933                 os << '}';
 934                 ++count;
 935                 env = true; // Size change need not bother about closing env.
 936         }
 937         if (f.underbar() == ON) {
 938                 os << '}';
 939                 ++count;
 940                 env = true; // Size change need not bother about closing env.
 941         }
 942         if (f.noun() == ON) {
 943                 os << '}';
 944                 ++count;
 945                 env = true; // Size change need not bother about closing env.
 946         }
 947         if (f.size() != INHERIT_SIZE) {
 948                 // We only have to close if only size changed
 949                 if (!env) {
 950                         os << '}';
 951                         ++count;
 952                 }
 953         }
 954
 955         if (number() == ON && next.number() != ON &&
 956             language()->lang() == "hebrew") {
 957                 os << "\\endL}";
 958                 count += 6;
 959         }
 960
 961         if (language() != base.language() && language() != next.language()) {
 962                 os << "}";
 963                 ++count;
 964         }
 965
 966         return count;
 967 }
 968
 969
 970 LColor::color LyXFont::realColor() const
 971 {
 972         if (color() == LColor::none)
 973                 return LColor::foreground;
 974         return color();
 975 }
 976
 977
 978 // Convert logical attributes to concrete shape attribute
 979 LyXFont::FONT_SHAPE LyXFont::realShape() const
 980 {
 981         register FONT_SHAPE s = shape();
 982
 983         if (emph() == ON) {
 984                 if (s == UP_SHAPE)
 985                         s = ITALIC_SHAPE;
 986                 else
 987                         s = UP_SHAPE;
 988         }
 989         if (noun() == ON)
 990                 s = SMALLCAPS_SHAPE;
 991         return s;
 992 }
 993
 994
 995 ostream & operator<<(ostream & o, LyXFont::FONT_MISC_STATE fms)
 996 {
 997         return o << int(fms);
 998 }