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