src/lyxfont.C

   1 /**
   2  * \file src/lyxfont.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Lars Gullik Bjønnes
   7  * \author Jean-Marc Lasgouttes
   8  * \author Angus Leeming
   9  * \author André Pönitz
  10  * \author Dekel Tsur
  11  *
  12  * Full author contact details are available in file CREDITS.
  13  */
  14
  15 #include <config.h>
  16
  17 #include "lyxfont.h"
  18
  19 #include "bufferparams.h" // stateText
  20 #include "debug.h"
  21 #include "gettext.h"
  22 #include "language.h"
  23 #include "LColor.h"
  24 #include "lyxlex.h"
  25 #include "lyxrc.h"
  26
  27 #include "support/lstrings.h"
  28
  29 using lyx::odocstream;
  30 using lyx::support::ascii_lowercase;
  31 using lyx::support::bformat;
  32 using lyx::support::rtrim;
  33 using lyx::support::subst;
  34
  35 using std::endl;
  36 using std::string;
  37 using std::ostream;
  38 using std::ostringstream;
  39
  40 #ifndef CXX_GLOBAL_CSTD
  41 using std::strlen;
  42 #endif
  43
  44 //
  45 // Names for the GUI
  46 //
  47
  48 namespace {
  49
  50 char const * GUIFamilyNames[LyXFont::NUM_FAMILIES + 2 /* default & error */] =
  51 { N_("Roman"), N_("Sans Serif"), N_("Typewriter"), N_("Symbol"),
  52   "cmr", "cmsy", "cmm", "cmex", "msa", "msb", "eufrak", "wasy",
  53   N_("Inherit"), N_("Ignore") };
  54
  55 char const * GUISeriesNames[4] =
  56 { N_("Medium"), N_("Bold"), N_("Inherit"), N_("Ignore") };
  57
  58 char const * GUIShapeNames[6] =
  59 { N_("Upright"), N_("Italic"), N_("Slanted"), N_("Smallcaps"), N_("Inherit"),
  60   N_("Ignore") };
  61
  62 char const * GUISizeNames[14] =
  63 { N_("Tiny"), N_("Smallest"), N_("Smaller"), N_("Small"), N_("Normal"), N_("Large"),
  64   N_("Larger"), N_("Largest"), N_("Huge"), N_("Huger"), N_("Increase"), N_("Decrease"),
  65   N_("Inherit"), N_("Ignore") };
  66
  67 char const * GUIMiscNames[5] =
  68 { N_("Off"), N_("On"), N_("Toggle"), N_("Inherit"), N_("Ignore") };
  69
  70
  71 //
  72 // Strings used to read and write .lyx format files
  73 //
  74 char const * LyXFamilyNames[LyXFont::NUM_FAMILIES + 2 /* default & error */] =
  75 { "roman", "sans", "typewriter", "symbol",
  76   "cmr", "cmsy", "cmm", "cmex", "msa", "msb", "eufrak", "wasy",
  77   "default", "error" };
  78
  79 char const * LyXSeriesNames[4] =
  80 { "medium", "bold", "default", "error" };
  81
  82 char const * LyXShapeNames[6] =
  83 { "up", "italic", "slanted", "smallcaps", "default", "error" };
  84
  85 char const * LyXSizeNames[14] =
  86 { "tiny", "scriptsize", "footnotesize", "small", "normal", "large",
  87   "larger", "largest", "huge", "giant",
  88   "increase", "decrease", "default", "error" };
  89
  90 char const * LyXMiscNames[5] =
  91 { "off", "on", "toggle", "default", "error" };
  92
  93 //
  94 // Strings used to write LaTeX files
  95 //
  96 char const * LaTeXFamilyNames[6] =
  97 { "textrm", "textsf", "texttt", "error1", "error2", "error3" };
  98
  99 char const * LaTeXSeriesNames[4] =
 100 { "textmd", "textbf", "error4", "error5" };
 101
 102 char const * LaTeXShapeNames[6] =
 103 { "textup", "textit", "textsl", "textsc", "error6", "error7" };
 104
 105 char const * LaTeXSizeNames[14] =
 106 { "tiny", "scriptsize", "footnotesize", "small", "normalsize", "large",
 107   "Large", "LARGE", "huge", "Huge", "error8", "error9", "error10", "error11" };
 108
 109 } // namespace anon
 110
 111
 112 // Initialize static member
 113 LyXFont::FontBits LyXFont::sane = {
 114         ROMAN_FAMILY,
 115         MEDIUM_SERIES,
 116         UP_SHAPE,
 117         SIZE_NORMAL,
 118         LColor::none,
 119         OFF,
 120         OFF,
 121         OFF,
 122         OFF };
 123
 124 // Initialize static member
 125 LyXFont::FontBits LyXFont::inherit = {
 126         INHERIT_FAMILY,
 127         INHERIT_SERIES,
 128         INHERIT_SHAPE,
 129         INHERIT_SIZE,
 130         LColor::inherit,
 131         INHERIT,
 132         INHERIT,
 133         INHERIT,
 134         OFF };
 135
 136 // Initialize static member
 137 LyXFont::FontBits LyXFont::ignore = {
 138         IGNORE_FAMILY,
 139         IGNORE_SERIES,
 140         IGNORE_SHAPE,
 141         IGNORE_SIZE,
 142         LColor::ignore,
 143         IGNORE,
 144         IGNORE,
 145         IGNORE,
 146         IGNORE };
 147
 148
 149 bool operator==(LyXFont::FontBits const & lhs,
 150                 LyXFont::FontBits const & rhs)
 151 {
 152         return lhs.family == rhs.family &&
 153                 lhs.series == rhs.series &&
 154                 lhs.shape == rhs.shape &&
 155                 lhs.size == rhs.size &&
 156                 lhs.color == rhs.color &&
 157                 lhs.emph == rhs.emph &&
 158                 lhs.underbar == rhs.underbar &&
 159                 lhs.noun == rhs.noun &&
 160                 lhs.number == rhs.number;
 161 }
 162
 163
 164 LyXFont::LyXFont()
 165         : bits(sane), lang(default_language)
 166 {}
 167
 168
 169 LyXFont::LyXFont(LyXFont::FONT_INIT1)
 170         : bits(inherit), lang(default_language)
 171 {}
 172
 173
 174 LyXFont::LyXFont(LyXFont::FONT_INIT2)
 175         : bits(ignore), lang(ignore_language)
 176 {}
 177
 178
 179 LyXFont::LyXFont(LyXFont::FONT_INIT3)
 180         : bits(sane), lang(default_language)
 181 {}
 182
 183
 184 LyXFont::LyXFont(LyXFont::FONT_INIT1, Language const * l)
 185         : bits(inherit), lang(l)
 186 {}
 187
 188
 189 LyXFont::LyXFont(LyXFont::FONT_INIT2, Language const * l)
 190         : bits(ignore), lang(l)
 191 {}
 192
 193
 194 LyXFont::LyXFont(LyXFont::FONT_INIT3, Language const * l)
 195         : bits(sane), lang(l)
 196 {}
 197
 198
 199
 200 LColor_color LyXFont::color() const
 201 {
 202         return LColor::color(bits.color);
 203 }
 204
 205
 206 bool LyXFont::isRightToLeft() const
 207 {
 208         return lang->rightToLeft();
 209 }
 210
 211
 212 bool LyXFont::isVisibleRightToLeft() const
 213 {
 214         return (lang->rightToLeft() &&
 215                 number() != ON);
 216 }
 217
 218
 219 void LyXFont::setFamily(LyXFont::FONT_FAMILY f)
 220 {
 221         bits.family = f;
 222 }
 223
 224
 225 void LyXFont::setSeries(LyXFont::FONT_SERIES s)
 226 {
 227         bits.series = s;
 228 }
 229
 230
 231 void LyXFont::setShape(LyXFont::FONT_SHAPE s)
 232 {
 233         bits.shape = s;
 234 }
 235
 236
 237 void LyXFont::setSize(LyXFont::FONT_SIZE s)
 238 {
 239         bits.size = s;
 240 }
 241
 242
 243 void LyXFont::setEmph(LyXFont::FONT_MISC_STATE e)
 244 {
 245         bits.emph = e;
 246 }
 247
 248
 249 void LyXFont::setUnderbar(LyXFont::FONT_MISC_STATE u)
 250 {
 251         bits.underbar = u;
 252 }
 253
 254
 255 void LyXFont::setNoun(LyXFont::FONT_MISC_STATE n)
 256 {
 257         bits.noun = n;
 258 }
 259
 260
 261 void LyXFont::setColor(LColor_color c)
 262 {
 263         bits.color = int(c);
 264 }
 265
 266
 267 void LyXFont::setLanguage(Language const * l)
 268 {
 269         lang = l;
 270 }
 271
 272
 273 void LyXFont::setNumber(LyXFont::FONT_MISC_STATE n)
 274 {
 275         bits.number = n;
 276 }
 277
 278
 279 /// Decreases font size by one
 280 LyXFont & LyXFont::decSize()
 281 {
 282         switch (size()) {
 283         case SIZE_HUGER:        setSize(SIZE_HUGE);     break;
 284         case SIZE_HUGE:         setSize(SIZE_LARGEST);  break;
 285         case SIZE_LARGEST:      setSize(SIZE_LARGER);   break;
 286         case SIZE_LARGER:       setSize(SIZE_LARGE);    break;
 287         case SIZE_LARGE:        setSize(SIZE_NORMAL);   break;
 288         case SIZE_NORMAL:       setSize(SIZE_SMALL);    break;
 289         case SIZE_SMALL:        setSize(SIZE_FOOTNOTE); break;
 290         case SIZE_FOOTNOTE:     setSize(SIZE_SCRIPT);   break;
 291         case SIZE_SCRIPT:       setSize(SIZE_TINY);     break;
 292         case SIZE_TINY:         break;
 293         case INCREASE_SIZE:
 294                 lyxerr << "Can't LyXFont::decSize on INCREASE_SIZE" << endl;
 295                 break;
 296         case DECREASE_SIZE:
 297                 lyxerr <<"Can't LyXFont::decSize on DECREASE_SIZE" << endl;
 298                 break;
 299         case INHERIT_SIZE:
 300                 lyxerr <<"Can't LyXFont::decSize on INHERIT_SIZE" << endl;
 301                 break;
 302         case IGNORE_SIZE:
 303                 lyxerr <<"Can't LyXFont::decSize on IGNORE_SIZE" << endl;
 304                 break;
 305         }
 306         return *this;
 307 }
 308
 309
 310 /// Increases font size by one
 311 LyXFont & LyXFont::incSize()
 312 {
 313         switch (size()) {
 314         case SIZE_HUGER:        break;
 315         case SIZE_HUGE:         setSize(SIZE_HUGER);    break;
 316         case SIZE_LARGEST:      setSize(SIZE_HUGE);     break;
 317         case SIZE_LARGER:       setSize(SIZE_LARGEST);  break;
 318         case SIZE_LARGE:        setSize(SIZE_LARGER);   break;
 319         case SIZE_NORMAL:       setSize(SIZE_LARGE);    break;
 320         case SIZE_SMALL:        setSize(SIZE_NORMAL);   break;
 321         case SIZE_FOOTNOTE:     setSize(SIZE_SMALL);    break;
 322         case SIZE_SCRIPT:       setSize(SIZE_FOOTNOTE); break;
 323         case SIZE_TINY:         setSize(SIZE_SCRIPT);   break;
 324         case INCREASE_SIZE:
 325                 lyxerr <<"Can't LyXFont::incSize on INCREASE_SIZE" << endl;
 326                 break;
 327         case DECREASE_SIZE:
 328                 lyxerr <<"Can't LyXFont::incSize on DECREASE_SIZE" << endl;
 329                 break;
 330         case INHERIT_SIZE:
 331                 lyxerr <<"Can't LyXFont::incSize on INHERIT_SIZE" << endl;
 332                 break;
 333         case IGNORE_SIZE:
 334                 lyxerr <<"Can't LyXFont::incSize on IGNORE_SIZE" << endl;
 335                 break;
 336         }
 337         return *this;
 338 }
 339
 340
 341 /// Updates a misc setting according to request
 342 LyXFont::FONT_MISC_STATE LyXFont::setMisc(FONT_MISC_STATE newfont,
 343                                           FONT_MISC_STATE org)
 344 {
 345         if (newfont == TOGGLE) {
 346                 if (org == ON)
 347                         return OFF;
 348                 else if (org == OFF)
 349                         return ON;
 350                 else {
 351                         lyxerr <<"LyXFont::setMisc: Need state"
 352                                 " ON or OFF to toggle. Setting to ON" << endl;
 353                         return ON;
 354                 }
 355         } else if (newfont == IGNORE)
 356                 return org;
 357         else
 358                 return newfont;
 359 }
 360
 361
 362 /// Updates font settings according to request
 363 void LyXFont::update(LyXFont const & newfont,
 364                      Language const * document_language,
 365                      bool toggleall)
 366 {
 367         if (newfont.family() == family() && toggleall)
 368                 setFamily(INHERIT_FAMILY); // toggle 'back'
 369         else if (newfont.family() != IGNORE_FAMILY)
 370                 setFamily(newfont.family());
 371         // else it's IGNORE_SHAPE
 372
 373         // "Old" behaviour: "Setting" bold will toggle bold on/off.
 374         switch (newfont.series()) {
 375         case BOLD_SERIES:
 376                 // We toggle...
 377                 if (series() == BOLD_SERIES && toggleall)
 378                         setSeries(MEDIUM_SERIES);
 379                 else
 380                         setSeries(BOLD_SERIES);
 381                 break;
 382         case MEDIUM_SERIES:
 383         case INHERIT_SERIES:
 384                 setSeries(newfont.series());
 385                 break;
 386         case IGNORE_SERIES:
 387                 break;
 388         }
 389
 390         if (newfont.shape() == shape() && toggleall)
 391                 setShape(INHERIT_SHAPE); // toggle 'back'
 392         else if (newfont.shape() != IGNORE_SHAPE)
 393                 setShape(newfont.shape());
 394         // else it's IGNORE_SHAPE
 395
 396         if (newfont.size() != IGNORE_SIZE) {
 397                 if (newfont.size() == INCREASE_SIZE)
 398                         incSize();
 399                 else if (newfont.size() == DECREASE_SIZE)
 400                         decSize();
 401                 else
 402                         setSize(newfont.size());
 403         }
 404
 405         setEmph(setMisc(newfont.emph(), emph()));
 406         setUnderbar(setMisc(newfont.underbar(), underbar()));
 407         setNoun(setMisc(newfont.noun(), noun()));
 408
 409         setNumber(setMisc(newfont.number(), number()));
 410         if (newfont.language() == language() && toggleall)
 411                 if (language() == document_language)
 412                         setLanguage(default_language);
 413                 else
 414                         setLanguage(document_language);
 415         else if (newfont.language() != ignore_language)
 416                 setLanguage(newfont.language());
 417
 418         if (newfont.color() == color() && toggleall)
 419                 setColor(LColor::inherit); // toggle 'back'
 420         else if (newfont.color() != LColor::ignore)
 421                 setColor(newfont.color());
 422 }
 423
 424
 425 /// Reduce font to fall back to template where possible
 426 void LyXFont::reduce(LyXFont const & tmplt)
 427 {
 428         if (family() == tmplt.family())
 429                 setFamily(INHERIT_FAMILY);
 430         if (series() == tmplt.series())
 431                 setSeries(INHERIT_SERIES);
 432         if (shape() == tmplt.shape())
 433                 setShape(INHERIT_SHAPE);
 434         if (size() == tmplt.size())
 435                 setSize(INHERIT_SIZE);
 436         if (emph() == tmplt.emph())
 437                 setEmph(INHERIT);
 438         if (underbar() == tmplt.underbar())
 439                 setUnderbar(INHERIT);
 440         if (noun() == tmplt.noun())
 441                 setNoun(INHERIT);
 442         if (color() == tmplt.color())
 443                 setColor(LColor::inherit);
 444 }
 445
 446
 447 /// Realize font from a template
 448 LyXFont & LyXFont::realize(LyXFont const & tmplt)
 449 {
 450         if (bits == inherit) {
 451                 bits = tmplt.bits;
 452                 return *this;
 453         }
 454
 455         if (bits.family == INHERIT_FAMILY)
 456                 bits.family = tmplt.bits.family;
 457
 458         if (bits.series == INHERIT_SERIES)
 459                 bits.series = tmplt.bits.series;
 460
 461         if (bits.shape == INHERIT_SHAPE)
 462                 bits.shape = tmplt.bits.shape;
 463
 464         if (bits.size == INHERIT_SIZE)
 465                 bits.size = tmplt.bits.size;
 466
 467         if (bits.emph == INHERIT)
 468                 bits.emph = tmplt.bits.emph;
 469
 470         if (bits.underbar == INHERIT)
 471                 bits.underbar = tmplt.bits.underbar;
 472
 473         if (bits.noun == INHERIT)
 474                 bits.noun = tmplt.bits.noun;
 475
 476         if (bits.color == LColor::inherit)
 477                 bits.color = tmplt.bits.color;
 478
 479         return *this;
 480 }
 481
 482
 483 /// Is font resolved?
 484 bool LyXFont::resolved() const
 485 {
 486         return (family() != INHERIT_FAMILY && series() != INHERIT_SERIES &&
 487                 shape() != INHERIT_SHAPE && size() != INHERIT_SIZE &&
 488                 emph() != INHERIT && underbar() != INHERIT &&
 489                 noun() != INHERIT &&
 490                 color() != LColor::inherit);
 491 }
 492
 493
 494 /// Build GUI description of font state
 495 string const LyXFont::stateText(BufferParams * params) const
 496 {
 497         ostringstream os;
 498         if (family() != INHERIT_FAMILY)
 499                 os << lyx::to_utf8(_(GUIFamilyNames[family()])) << ", ";
 500         if (series() != INHERIT_SERIES)
 501                 os << lyx::to_utf8(_(GUISeriesNames[series()])) << ", ";
 502         if (shape() != INHERIT_SHAPE)
 503                 os << lyx::to_utf8(_(GUIShapeNames[shape()])) << ", ";
 504         if (size() != INHERIT_SIZE)
 505                 os << lyx::to_utf8(_(GUISizeNames[size()])) << ", ";
 506         if (color() != LColor::inherit)
 507                 os << lcolor.getGUIName(color()) << ", ";
 508         if (emph() != INHERIT)
 509                 os << lyx::to_utf8(bformat(_("Emphasis %1$s, "),
 510                               _(GUIMiscNames[emph()])));
 511         if (underbar() != INHERIT)
 512                 os << lyx::to_utf8(bformat(_("Underline %1$s, "),
 513                               _(GUIMiscNames[underbar()])));
 514         if (noun() != INHERIT)
 515                 os << lyx::to_utf8(bformat(_("Noun %1$s, "),
 516                               _(GUIMiscNames[noun()])));
 517         if (bits == inherit)
 518                 os << lyx::to_utf8(_("Default")) << ", ";
 519         if (!params || (language() != params->language))
 520                 os << lyx::to_utf8(bformat(_("Language: %1$s, "),
 521                               _(language()->display())));
 522         if (number() != OFF)
 523                 os << lyx::to_utf8(bformat(_("  Number %1$s"),
 524                                 _(GUIMiscNames[number()])));
 525         return rtrim(os.str(), ", ");
 526 }
 527
 528
 529 // Set family according to lyx format string
 530 LyXFont & LyXFont::setLyXFamily(string const & fam)
 531 {
 532         string const s = ascii_lowercase(fam);
 533
 534         int i = 0;
 535         while (LyXFamilyNames[i] != s &&
 536                LyXFamilyNames[i] != string("error"))
 537                 ++i;
 538         if (s == LyXFamilyNames[i])
 539                 setFamily(LyXFont::FONT_FAMILY(i));
 540         else
 541                 lyxerr << "LyXFont::setLyXFamily: Unknown family `"
 542                        << s << '\'' << endl;
 543         return *this;
 544 }
 545
 546
 547 // Set series according to lyx format string
 548 LyXFont & LyXFont::setLyXSeries(string const & ser)
 549 {
 550         string const s = ascii_lowercase(ser);
 551
 552         int i = 0;
 553         while (LyXSeriesNames[i] != s &&
 554                LyXSeriesNames[i] != string("error")) ++i;
 555         if (s == LyXSeriesNames[i]) {
 556                 setSeries(LyXFont::FONT_SERIES(i));
 557         } else
 558                 lyxerr << "LyXFont::setLyXSeries: Unknown series `"
 559                        << s << '\'' << endl;
 560         return *this;
 561 }
 562
 563
 564 // Set shape according to lyx format string
 565 LyXFont & LyXFont::setLyXShape(string const & sha)
 566 {
 567         string const s = ascii_lowercase(sha);
 568
 569         int i = 0;
 570         while (LyXShapeNames[i] != s && LyXShapeNames[i] != string("error"))
 571                         ++i;
 572         if (s == LyXShapeNames[i])
 573                 setShape(LyXFont::FONT_SHAPE(i));
 574         else
 575                 lyxerr << "LyXFont::setLyXShape: Unknown shape `"
 576                        << s << '\'' << endl;
 577         return *this;
 578 }
 579
 580
 581 // Set size according to lyx format string
 582 LyXFont & LyXFont::setLyXSize(string const & siz)
 583 {
 584         string const s = ascii_lowercase(siz);
 585         int i = 0;
 586         while (LyXSizeNames[i] != s && LyXSizeNames[i] != string("error"))
 587                 ++i;
 588         if (s == LyXSizeNames[i]) {
 589                 setSize(LyXFont::FONT_SIZE(i));
 590         } else
 591                 lyxerr << "LyXFont::setLyXSize: Unknown size `"
 592                        << s << '\'' << endl;
 593         return *this;
 594 }
 595
 596
 597 // Set size according to lyx format string
 598 LyXFont::FONT_MISC_STATE LyXFont::setLyXMisc(string const & siz)
 599 {
 600         string const s = ascii_lowercase(siz);
 601         int i = 0;
 602         while (LyXMiscNames[i] != s &&
 603                LyXMiscNames[i] != string("error")) ++i;
 604         if (s == LyXMiscNames[i])
 605                 return FONT_MISC_STATE(i);
 606         lyxerr << "LyXFont::setLyXMisc: Unknown misc flag `"
 607                << s << '\'' << endl;
 608         return OFF;
 609 }
 610
 611
 612 /// Sets color after LyX text format
 613 LyXFont & LyXFont::setLyXColor(string const & col)
 614 {
 615         setColor(lcolor.getFromLyXName(col));
 616         return *this;
 617 }
 618
 619
 620 // Returns size in latex format
 621 string const LyXFont::latexSize() const
 622 {
 623         return LaTeXSizeNames[size()];
 624 }
 625
 626
 627 // Read a font definition from given file in lyx format
 628 // Used for layouts
 629 LyXFont & LyXFont::lyxRead(LyXLex & lex)
 630 {
 631         bool error = false;
 632         bool finished = false;
 633         while (!finished && lex.isOK() && !error) {
 634                 lex.next();
 635                 string const tok = ascii_lowercase(lex.getString());
 636
 637                 if (tok.empty()) {
 638                         continue;
 639                 } else if (tok == "endfont") {
 640                         finished = true;
 641                 } else if (tok == "family") {
 642                         lex.next();
 643                         string const ttok = lex.getString();
 644                         setLyXFamily(ttok);
 645                 } else if (tok == "series") {
 646                         lex.next();
 647                         string const ttok = lex.getString();
 648                         setLyXSeries(ttok);
 649                 } else if (tok == "shape") {
 650                         lex.next();
 651                         string const ttok = lex.getString();
 652                         setLyXShape(ttok);
 653                 } else if (tok == "size") {
 654                         lex.next();
 655                         string const ttok = lex.getString();
 656                         setLyXSize(ttok);
 657                 } else if (tok == "misc") {
 658                         lex.next();
 659                         string const ttok = ascii_lowercase(lex.getString());
 660
 661                         if (ttok == "no_bar") {
 662                                 setUnderbar(OFF);
 663                         } else if (ttok == "no_emph") {
 664                                 setEmph(OFF);
 665                         } else if (ttok == "no_noun") {
 666                                 setNoun(OFF);
 667                         } else if (ttok == "emph") {
 668                                 setEmph(ON);
 669                         } else if (ttok == "underbar") {
 670                                 setUnderbar(ON);
 671                         } else if (ttok == "noun") {
 672                                 setNoun(ON);
 673                         } else {
 674                                 lex.printError("Illegal misc type `$$Token´");
 675                         }
 676                 } else if (tok == "color") {
 677                         lex.next();
 678                         string const ttok = lex.getString();
 679                         setLyXColor(ttok);
 680                 } else {
 681                         lex.printError("Unknown tag `$$Token'");
 682                         error = true;
 683                 }
 684         }
 685         return *this;
 686 }
 687
 688
 689 /// Writes the changes from this font to orgfont in .lyx format in file
 690 void LyXFont::lyxWriteChanges(LyXFont const & orgfont,
 691                               ostream & os) const
 692 {
 693         os << "\n";
 694         if (orgfont.family() != family())
 695                 os << "\\family " << LyXFamilyNames[family()] << "\n";
 696         if (orgfont.series() != series())
 697                 os << "\\series " << LyXSeriesNames[series()] << "\n";
 698         if (orgfont.shape() != shape())
 699                 os << "\\shape " << LyXShapeNames[shape()] << "\n";
 700         if (orgfont.size() != size())
 701                 os << "\\size " << LyXSizeNames[size()] << "\n";
 702         if (orgfont.emph() != emph())
 703                 os << "\\emph " << LyXMiscNames[emph()] << "\n";
 704         if (orgfont.number() != number())
 705                 os << "\\numeric " << LyXMiscNames[number()] << "\n";
 706         if (orgfont.underbar() != underbar()) {
 707                 // This is only for backwards compatibility
 708                 switch (underbar()) {
 709                 case OFF:       os << "\\bar no\n"; break;
 710                 case ON:        os << "\\bar under\n"; break;
 711                 case TOGGLE:    lyxerr << "LyXFont::lyxWriteFontChanges: "
 712                                         "TOGGLE should not appear here!"
 713                                        << endl;
 714                 break;
 715                 case INHERIT:   os << "\\bar default\n"; break;
 716                 case IGNORE:    lyxerr << "LyXFont::lyxWriteFontChanges: "
 717                                         "IGNORE should not appear here!"
 718                                        << endl;
 719                 break;
 720                 }
 721         }
 722         if (orgfont.noun() != noun()) {
 723                 os << "\\noun " << LyXMiscNames[noun()] << "\n";
 724         }
 725         if (orgfont.color() != color()) {
 726                 // To make us file compatible with older
 727                 // lyx versions we emit "default" instead
 728                 // of "inherit"
 729                 string col_str(lcolor.getLyXName(color()));
 730                 if (col_str == "inherit") col_str = "default";
 731                 os << "\\color " << col_str << "\n";
 732         }
 733         if (orgfont.language() != language() &&
 734             language() != latex_language) {
 735                 if (language())
 736                         os << "\\lang " << language()->lang() << "\n";
 737                 else
 738                         os << "\\lang unknown\n";
 739         }
 740 }
 741
 742
 743 /// Writes the head of the LaTeX needed to impose this font
 744 // Returns number of chars written.
 745 int LyXFont::latexWriteStartChanges(odocstream & os, LyXFont const & base,
 746                                     LyXFont const & prev) const
 747 {
 748         int count = 0;
 749         bool env = false;
 750
 751         if (language()->babel() != base.language()->babel() &&
 752             language() != prev.language()) {
 753                 if (isRightToLeft() != prev.isRightToLeft()) {
 754                         if (isRightToLeft()) {
 755                                 os << "\\R{";
 756                                 count += 3;
 757                         } else {
 758                                 os << "\\L{";
 759                                 count += 3;
 760                         }
 761                 } else {
 762                         string const tmp =
 763                                 subst(lyxrc.language_command_local,
 764                                       "$$lang", language()->babel());
 765                         os << lyx::from_ascii(tmp);
 766                         count += tmp.length();
 767                 }
 768         }
 769
 770         if (number() == ON && prev.number() != ON &&
 771             language()->lang() == "hebrew") {
 772                 os << "{\\beginL ";
 773                 count += 9;
 774         }
 775
 776         LyXFont f = *this;
 777         f.reduce(base);
 778
 779         if (f.family() != INHERIT_FAMILY) {
 780                 os << '\\'
 781                    << LaTeXFamilyNames[f.family()]
 782                    << '{';
 783                 count += strlen(LaTeXFamilyNames[f.family()]) + 2;
 784                 env = true; //We have opened a new environment
 785         }
 786         if (f.series() != INHERIT_SERIES) {
 787                 os << '\\'
 788                    << LaTeXSeriesNames[f.series()]
 789                    << '{';
 790                 count += strlen(LaTeXSeriesNames[f.series()]) + 2;
 791                 env = true; //We have opened a new environment
 792         }
 793         if (f.shape() != INHERIT_SHAPE) {
 794                 os << '\\'
 795                    << LaTeXShapeNames[f.shape()]
 796                    << '{';
 797                 count += strlen(LaTeXShapeNames[f.shape()]) + 2;
 798                 env = true; //We have opened a new environment
 799         }
 800         if (f.color() != LColor::inherit && f.color() != LColor::ignore) {
 801                 os << "\\textcolor{"
 802                    << lyx::from_ascii(lcolor.getLaTeXName(f.color()))
 803                    << "}{";
 804                 count += lcolor.getLaTeXName(f.color()).length() + 13;
 805                 env = true; //We have opened a new environment
 806         }
 807         if (f.emph() == ON) {
 808                 os << "\\emph{";
 809                 count += 6;
 810                 env = true; //We have opened a new environment
 811         }
 812         if (f.underbar() == ON) {
 813                 os << "\\underbar{";
 814                 count += 10;
 815                 env = true; //We have opened a new environment
 816         }
 817         // \noun{} is a LyX special macro
 818         if (f.noun() == ON) {
 819                 os << "\\noun{";
 820                 count += 6;
 821                 env = true; //We have opened a new environment
 822         }
 823         if (f.size() != INHERIT_SIZE) {
 824                 // If we didn't open an environment above, we open one here
 825                 if (!env) {
 826                         os << '{';
 827                         ++count;
 828                 }
 829                 os << '\\'
 830                    << LaTeXSizeNames[f.size()]
 831                    << ' ';
 832                 count += strlen(LaTeXSizeNames[f.size()]) + 2;
 833         }
 834         return count;
 835 }
 836
 837
 838 /// Writes ending block of LaTeX needed to close use of this font
 839 // Returns number of chars written
 840 // This one corresponds to latexWriteStartChanges(). (Asger)
 841 int LyXFont::latexWriteEndChanges(odocstream & os, LyXFont const & base,
 842                                   LyXFont const & next) const
 843 {
 844         int count = 0;
 845         bool env = false;
 846
 847         // reduce the current font to changes against the base
 848         // font (of the layout). We use a temporary for this to
 849         // avoid changing this font instance, as that would break
 850         LyXFont f = *this;
 851         f.reduce(base);
 852
 853         if (f.family() != INHERIT_FAMILY) {
 854                 os << '}';
 855                 ++count;
 856                 env = true; // Size change need not bother about closing env.
 857         }
 858         if (f.series() != INHERIT_SERIES) {
 859                 os << '}';
 860                 ++count;
 861                 env = true; // Size change need not bother about closing env.
 862         }
 863         if (f.shape() != INHERIT_SHAPE) {
 864                 os << '}';
 865                 ++count;
 866                 env = true; // Size change need not bother about closing env.
 867         }
 868         if (f.color() != LColor::inherit && f.color() != LColor::ignore) {
 869                 os << '}';
 870                 ++count;
 871                 env = true; // Size change need not bother about closing env.
 872         }
 873         if (f.emph() == ON) {
 874                 os << '}';
 875                 ++count;
 876                 env = true; // Size change need not bother about closing env.
 877         }
 878         if (f.underbar() == ON) {
 879                 os << '}';
 880                 ++count;
 881                 env = true; // Size change need not bother about closing env.
 882         }
 883         if (f.noun() == ON) {
 884                 os << '}';
 885                 ++count;
 886                 env = true; // Size change need not bother about closing env.
 887         }
 888         if (f.size() != INHERIT_SIZE) {
 889                 // We only have to close if only size changed
 890                 if (!env) {
 891                         os << '}';
 892                         ++count;
 893                 }
 894         }
 895
 896         if (number() == ON && next.number() != ON &&
 897             language()->lang() == "hebrew") {
 898                 os << "\\endL}";
 899                 count += 6;
 900         }
 901
 902         if (language() != base.language() && language() != next.language()) {
 903                 os << '}';
 904                 ++count;
 905         }
 906
 907         return count;
 908 }
 909
 910
 911 LColor_color LyXFont::realColor() const
 912 {
 913         if (color() == LColor::none)
 914                 return LColor::foreground;
 915         return color();
 916 }
 917
 918
 919 ostream & operator<<(ostream & os, LyXFont::FONT_MISC_STATE fms)
 920 {
 921         return os << int(fms);
 922 }
 923
 924
 925 std::ostream & operator<<(std::ostream & os, LyXFont const & font)
 926 {
 927         return os << "font:"
 928                 << " family " << font.bits.family
 929                 << " series " << font.bits.series
 930                 << " shape " << font.bits.shape
 931                 << " size " << font.bits.size
 932                 << " color " << font.bits.color
 933                 << " emph " << font.bits.emph
 934                 << " underbar " << font.bits.underbar
 935                 << " noun " << font.bits.noun
 936                 << " number " << font.bits.number
 937                 << " lang: " << (font.lang ? font.lang->lang() : 0);
 938 }