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 #include "gettext.h"
  16 #include "lyxfont.h"
  17 #include "debug.h"
  18 #include "lyxrc.h"
  19 #include "lyxlex.h"
  20 #include "language.h"
  21 #include "Lsstream.h"
  22 #include "support/lstrings.h"
  23 #include "bufferparams.h" // stateText
  24
  25 using std::ostream;
  26 using std::endl;
  27
  28 #ifndef CXX_GLOBAL_CSTD
  29 using std::strlen;
  30 #endif
  31
  32 //
  33 // Names for the GUI
  34 //
  35
  36 namespace {
  37
  38 char const * GUIFamilyNames[LyXFont::NUM_FAMILIES + 2 /* default & error */] =
  39 { N_("Roman"), N_("Sans Serif"), N_("Typewriter"), N_("Symbol"),
  40   "cmr", "cmsy", "cmm", "cmex", "msa", "msb", "eufrak", "wasy",
  41   N_("Inherit"), N_("Ignore") };
  42
  43 char const * GUISeriesNames[4] =
  44 { N_("Medium"), N_("Bold"), N_("Inherit"), N_("Ignore") };
  45
  46 char const * GUIShapeNames[6] =
  47 { N_("Upright"), N_("Italic"), N_("Slanted"), N_("Smallcaps"), N_("Inherit"),
  48   N_("Ignore") };
  49
  50 char const * GUISizeNames[14] =
  51 { N_("Tiny"), N_("Smallest"), N_("Smaller"), N_("Small"), N_("Normal"), N_("Large"),
  52   N_("Larger"), N_("Largest"), N_("Huge"), N_("Huger"), N_("Increase"), N_("Decrease"),
  53   N_("Inherit"), N_("Ignore") };
  54
  55 char const * GUIMiscNames[5] =
  56 { N_("Off"), N_("On"), N_("Toggle"), N_("Inherit"), N_("Ignore") };
  57
  58
  59 //
  60 // Strings used to read and write .lyx format files
  61 //
  62 char const * LyXFamilyNames[LyXFont::NUM_FAMILIES + 2 /* default & error */] =
  63 { "roman", "sans", "typewriter", "symbol",
  64   "cmr", "cmsy", "cmm", "cmex", "msa", "msb", "eufrak", "wasy",
  65   "default", "error" };
  66
  67 char const * LyXSeriesNames[4] =
  68 { "medium", "bold", "default", "error" };
  69
  70 char const * LyXShapeNames[6] =
  71 { "up", "italic", "slanted", "smallcaps", "default", "error" };
  72
  73 char const * LyXSizeNames[14] =
  74 { "tiny", "scriptsize", "footnotesize", "small", "normal", "large",
  75   "larger", "largest", "huge", "giant",
  76   "increase", "decrease", "default", "error" };
  77
  78 char const * LyXMiscNames[5] =
  79 { "off", "on", "toggle", "default", "error" };
  80
  81 //
  82 // Strings used to write LaTeX files
  83 //
  84 char const * LaTeXFamilyNames[6] =
  85 { "textrm", "textsf", "texttt", "error1", "error2", "error3" };
  86
  87 char const * LaTeXSeriesNames[4] =
  88 { "textmd", "textbf", "error4", "error5" };
  89
  90 char const * LaTeXShapeNames[6] =
  91 { "textup", "textit", "textsl", "textsc", "error6", "error7" };
  92
  93 char const * LaTeXSizeNames[14] =
  94 { "tiny", "scriptsize", "footnotesize", "small", "normalsize", "large",
  95   "Large", "LARGE", "huge", "Huge", "error8", "error9", "error10", "error11" };
  96
  97 } // namespace anon
  98
  99
 100 // Initialize static member
 101 LyXFont::FontBits LyXFont::sane = {
 102         ROMAN_FAMILY,
 103         MEDIUM_SERIES,
 104         UP_SHAPE,
 105         SIZE_NORMAL,
 106         LColor::none,
 107         OFF,
 108         OFF,
 109         OFF,
 110         OFF };
 111
 112 // Initialize static member
 113 LyXFont::FontBits LyXFont::inherit = {
 114         INHERIT_FAMILY,
 115         INHERIT_SERIES,
 116         INHERIT_SHAPE,
 117         INHERIT_SIZE,
 118         LColor::inherit,
 119         INHERIT,
 120         INHERIT,
 121         INHERIT,
 122         OFF };
 123
 124 // Initialize static member
 125 LyXFont::FontBits LyXFont::ignore = {
 126         IGNORE_FAMILY,
 127         IGNORE_SERIES,
 128         IGNORE_SHAPE,
 129         IGNORE_SIZE,
 130         LColor::ignore,
 131         IGNORE,
 132         IGNORE,
 133         IGNORE,
 134         IGNORE };
 135
 136
 137 bool operator==(LyXFont::FontBits const & lhs,
 138                 LyXFont::FontBits const & rhs)
 139 {
 140         return lhs.family == rhs.family &&
 141                 lhs.series == rhs.series &&
 142                 lhs.shape == rhs.shape &&
 143                 lhs.size == rhs.size &&
 144                 lhs.color == rhs.color &&
 145                 lhs.emph == rhs.emph &&
 146                 lhs.underbar == rhs.underbar &&
 147                 lhs.noun == rhs.noun &&
 148                 lhs.number == rhs.number;
 149 }
 150
 151
 152 LyXFont::LyXFont()
 153         : bits(sane), lang(default_language)
 154 {}
 155
 156
 157 LyXFont::LyXFont(LyXFont::FONT_INIT1)
 158         : bits(inherit), lang(default_language)
 159 {}
 160
 161
 162 LyXFont::LyXFont(LyXFont::FONT_INIT2)
 163         : bits(ignore), lang(ignore_language)
 164 {}
 165
 166
 167 LyXFont::LyXFont(LyXFont::FONT_INIT3)
 168         : bits(sane), lang(default_language)
 169 {}
 170
 171
 172 LyXFont::LyXFont(LyXFont::FONT_INIT1, Language const * l)
 173         : bits(inherit), lang(l)
 174 {}
 175
 176
 177 LyXFont::LyXFont(LyXFont::FONT_INIT2, Language const * l)
 178         : bits(ignore), lang(l)
 179 {}
 180
 181
 182 LyXFont::LyXFont(LyXFont::FONT_INIT3, Language const * l)
 183         : bits(sane), lang(l)
 184 {}
 185
 186
 187 LyXFont::FONT_MISC_STATE LyXFont::underbar() const
 188 {
 189         return bits.underbar;
 190 }
 191
 192
 193 LColor::color LyXFont::color() const
 194 {
 195         return bits.color;
 196 }
 197
 198
 199 Language const * LyXFont::language() const
 200 {
 201         return lang;
 202 }
 203
 204
 205 LyXFont::FONT_MISC_STATE LyXFont::number() const
 206 {
 207         return bits.number;
 208 }
 209
 210
 211 bool LyXFont::isRightToLeft() const
 212 {
 213         return lang->RightToLeft();
 214 }
 215
 216
 217 bool LyXFont::isVisibleRightToLeft() const
 218 {
 219         return (lang->RightToLeft() &&
 220                 number() != ON);
 221 }
 222
 223
 224 LyXFont & LyXFont::setFamily(LyXFont::FONT_FAMILY f)
 225 {
 226         bits.family = f;
 227         return *this;
 228 }
 229
 230
 231 LyXFont & LyXFont::setSeries(LyXFont::FONT_SERIES s)
 232 {
 233         bits.series = s;
 234         return *this;
 235 }
 236
 237
 238 LyXFont & LyXFont::setShape(LyXFont::FONT_SHAPE s)
 239 {
 240         bits.shape = s;
 241         return *this;
 242 }
 243
 244
 245 LyXFont & LyXFont::setSize(LyXFont::FONT_SIZE s)
 246 {
 247         bits.size = s;
 248         return *this;
 249 }
 250
 251
 252 LyXFont & LyXFont::setEmph(LyXFont::FONT_MISC_STATE e)
 253 {
 254         bits.emph = e;
 255         return *this;
 256 }
 257
 258
 259 LyXFont & LyXFont::setUnderbar(LyXFont::FONT_MISC_STATE u)
 260 {
 261         bits.underbar = u;
 262         return *this;
 263 }
 264
 265
 266 LyXFont & LyXFont::setNoun(LyXFont::FONT_MISC_STATE n)
 267 {
 268         bits.noun = n;
 269         return *this;
 270 }
 271
 272
 273 LyXFont & LyXFont::setColor(LColor::color c)
 274 {
 275         bits.color = c;
 276         return *this;
 277 }
 278
 279
 280 LyXFont & LyXFont::setLanguage(Language const * l)
 281 {
 282         lang = l;
 283         return *this;
 284 }
 285
 286
 287 LyXFont & LyXFont::setNumber(LyXFont::FONT_MISC_STATE n)
 288 {
 289         bits.number = n;
 290         return *this;
 291 }
 292
 293
 294 /// Decreases font size by one
 295 LyXFont & LyXFont::decSize()
 296 {
 297         switch (size()) {
 298         case SIZE_HUGER:        setSize(SIZE_HUGE);     break;
 299         case SIZE_HUGE:         setSize(SIZE_LARGEST);  break;
 300         case SIZE_LARGEST:      setSize(SIZE_LARGER);   break;
 301         case SIZE_LARGER:       setSize(SIZE_LARGE);    break;
 302         case SIZE_LARGE:        setSize(SIZE_NORMAL);   break;
 303         case SIZE_NORMAL:       setSize(SIZE_SMALL);    break;
 304         case SIZE_SMALL:        setSize(SIZE_FOOTNOTE); break;
 305         case SIZE_FOOTNOTE:     setSize(SIZE_SCRIPT);   break;
 306         case SIZE_SCRIPT:       setSize(SIZE_TINY);     break;
 307         case SIZE_TINY:         break;
 308         case INCREASE_SIZE:
 309                 lyxerr << "Can't LyXFont::decSize on INCREASE_SIZE" << endl;
 310                 break;
 311         case DECREASE_SIZE:
 312                 lyxerr <<"Can't LyXFont::decSize on DECREASE_SIZE" << endl;
 313                 break;
 314         case INHERIT_SIZE:
 315                 lyxerr <<"Can't LyXFont::decSize on INHERIT_SIZE" << endl;
 316                 break;
 317         case IGNORE_SIZE:
 318                 lyxerr <<"Can't LyXFont::decSize on IGNORE_SIZE" << endl;
 319                 break;
 320         }
 321         return *this;
 322 }
 323
 324
 325 /// Increases font size by one
 326 LyXFont & LyXFont::incSize()
 327 {
 328         switch (size()) {
 329         case SIZE_HUGER:        break;
 330         case SIZE_HUGE:         setSize(SIZE_HUGER);    break;
 331         case SIZE_LARGEST:      setSize(SIZE_HUGE);     break;
 332         case SIZE_LARGER:       setSize(SIZE_LARGEST);  break;
 333         case SIZE_LARGE:        setSize(SIZE_LARGER);   break;
 334         case SIZE_NORMAL:       setSize(SIZE_LARGE);    break;
 335         case SIZE_SMALL:        setSize(SIZE_NORMAL);   break;
 336         case SIZE_FOOTNOTE:     setSize(SIZE_SMALL);    break;
 337         case SIZE_SCRIPT:       setSize(SIZE_FOOTNOTE); break;
 338         case SIZE_TINY:         setSize(SIZE_SCRIPT);   break;
 339         case INCREASE_SIZE:
 340                 lyxerr <<"Can't LyXFont::incSize on INCREASE_SIZE" << endl;
 341                 break;
 342         case DECREASE_SIZE:
 343                 lyxerr <<"Can't LyXFont::incSize on DECREASE_SIZE" << endl;
 344                 break;
 345         case INHERIT_SIZE:
 346                 lyxerr <<"Can't LyXFont::incSize on INHERIT_SIZE" << endl;
 347                 break;
 348         case IGNORE_SIZE:
 349                 lyxerr <<"Can't LyXFont::incSize on IGNORE_SIZE" << endl;
 350                 break;
 351         }
 352         return *this;
 353 }
 354
 355
 356 /// Updates a misc setting according to request
 357 LyXFont::FONT_MISC_STATE LyXFont::setMisc(FONT_MISC_STATE newfont,
 358                                           FONT_MISC_STATE org)
 359 {
 360         if (newfont == TOGGLE) {
 361                 if (org == ON)
 362                         return OFF;
 363                 else if (org == OFF)
 364                         return ON;
 365                 else {
 366                         lyxerr <<"LyXFont::setMisc: Need state"
 367                                 " ON or OFF to toggle. Setting to ON" << endl;
 368                         return ON;
 369                 }
 370         } else if (newfont == IGNORE)
 371                 return org;
 372         else
 373                 return newfont;
 374 }
 375
 376
 377 /// Updates font settings according to request
 378 void LyXFont::update(LyXFont const & newfont,
 379                      Language const * document_language,
 380                      bool toggleall)
 381 {
 382         if (newfont.family() == family() && toggleall)
 383                 setFamily(INHERIT_FAMILY); // toggle 'back'
 384         else if (newfont.family() != IGNORE_FAMILY)
 385                 setFamily(newfont.family());
 386         // else it's IGNORE_SHAPE
 387
 388         // "Old" behaviour: "Setting" bold will toggle bold on/off.
 389         switch (newfont.series()) {
 390         case BOLD_SERIES:
 391                 // We toggle...
 392                 if (series() == BOLD_SERIES && toggleall)
 393                         setSeries(MEDIUM_SERIES);
 394                 else
 395                         setSeries(BOLD_SERIES);
 396                 break;
 397         case MEDIUM_SERIES:
 398         case INHERIT_SERIES:
 399                 setSeries(newfont.series());
 400                 break;
 401         case IGNORE_SERIES:
 402                 break;
 403         }
 404
 405         if (newfont.shape() == shape() && toggleall)
 406                 setShape(INHERIT_SHAPE); // toggle 'back'
 407         else if (newfont.shape() != IGNORE_SHAPE)
 408                 setShape(newfont.shape());
 409         // else it's IGNORE_SHAPE
 410
 411         if (newfont.size() != IGNORE_SIZE) {
 412                 if (newfont.size() == INCREASE_SIZE)
 413                         incSize();
 414                 else if (newfont.size() == DECREASE_SIZE)
 415                         decSize();
 416                 else
 417                         setSize(newfont.size());
 418         }
 419
 420         setEmph(setMisc(newfont.emph(), emph()));
 421         setUnderbar(setMisc(newfont.underbar(), underbar()));
 422         setNoun(setMisc(newfont.noun(), noun()));
 423
 424         setNumber(setMisc(newfont.number(), number()));
 425         if (newfont.language() == language() && toggleall)
 426                 if (language() == document_language)
 427                         setLanguage(default_language);
 428                 else
 429                         setLanguage(document_language);
 430         else if (newfont.language() != ignore_language)
 431                 setLanguage(newfont.language());
 432
 433         if (newfont.color() == color() && toggleall)
 434                 setColor(LColor::inherit); // toggle 'back'
 435         else if (newfont.color() != LColor::ignore)
 436                 setColor(newfont.color());
 437 }
 438
 439
 440 /// Reduce font to fall back to template where possible
 441 void LyXFont::reduce(LyXFont const & tmplt)
 442 {
 443         if (family() == tmplt.family())
 444                 setFamily(INHERIT_FAMILY);
 445         if (series() == tmplt.series())
 446                 setSeries(INHERIT_SERIES);
 447         if (shape() == tmplt.shape())
 448                 setShape(INHERIT_SHAPE);
 449         if (size() == tmplt.size())
 450                 setSize(INHERIT_SIZE);
 451         if (emph() == tmplt.emph())
 452                 setEmph(INHERIT);
 453         if (underbar() == tmplt.underbar())
 454                 setUnderbar(INHERIT);
 455         if (noun() == tmplt.noun())
 456                 setNoun(INHERIT);
 457         if (color() == tmplt.color())
 458                 setColor(LColor::inherit);
 459 }
 460
 461
 462 /// Realize font from a template
 463 LyXFont & LyXFont::realize(LyXFont const & tmplt)
 464 {
 465         if (bits == inherit) {
 466                 bits = tmplt.bits;
 467                 return *this;
 468         }
 469
 470         if (bits.family == INHERIT_FAMILY) {
 471                 bits.family = tmplt.bits.family;
 472         }
 473         if (bits.series == INHERIT_SERIES) {
 474                 bits.series = tmplt.bits.series;
 475         }
 476         if (bits.shape == INHERIT_SHAPE) {
 477                 bits.shape = tmplt.bits.shape;
 478         }
 479         if (bits.size == INHERIT_SIZE) {
 480                 bits.size = tmplt.bits.size;
 481         }
 482         if (bits.emph == INHERIT) {
 483                 bits.emph = tmplt.bits.emph;
 484         }
 485         if (bits.underbar == INHERIT) {
 486                 bits.underbar = tmplt.bits.underbar;
 487         }
 488         if (bits.noun == INHERIT) {
 489                 bits.noun = tmplt.bits.noun;
 490         }
 491         if (bits.color == LColor::inherit) {
 492                 bits.color = tmplt.bits.color;
 493         }
 494         return *this;
 495 }
 496
 497
 498 /// Is font resolved?
 499 bool LyXFont::resolved() const
 500 {
 501         return (family() != INHERIT_FAMILY && series() != INHERIT_SERIES &&
 502                 shape() != INHERIT_SHAPE && size() != INHERIT_SIZE &&
 503                 emph() != INHERIT && underbar() != INHERIT &&
 504                 noun() != INHERIT &&
 505                 color() != LColor::inherit);
 506 }
 507
 508
 509 /// Build GUI description of font state
 510 string const LyXFont::stateText(BufferParams * params) const
 511 {
 512         ostringstream os;
 513         if (family() != INHERIT_FAMILY)
 514                 os << _(GUIFamilyNames[family()]) << ", ";
 515         if (series() != INHERIT_SERIES)
 516                 os << _(GUISeriesNames[series()]) << ", ";
 517         if (shape() != INHERIT_SHAPE)
 518                 os << _(GUIShapeNames[shape()]) << ", ";
 519         if (size() != INHERIT_SIZE)
 520                 os << _(GUISizeNames[size()]) << ", ";
 521         if (color() != LColor::inherit)
 522                 os << lcolor.getGUIName(color()) << ", ";
 523         if (emph() != INHERIT)
 524                 os << bformat(_("Emphasis %1$s, "), _(GUIMiscNames[emph()]));
 525         if (underbar() != INHERIT)
 526                 os << bformat(_("Underline %1$s, "), _(GUIMiscNames[underbar()]));
 527         if (noun() != INHERIT)
 528                 os << bformat(_("Noun %1$s, "), _(GUIMiscNames[noun()]));
 529         if (bits == inherit)
 530                 os << _("Default") << ", ";
 531         if (!params || (language() != params->language))
 532                 os << bformat(_("Language: %1$s, "), _(language()->display()));
 533         if (number() != OFF)
 534                 os << bformat(_("  Number %1$s"), _(GUIMiscNames[number()]));
 535         return rtrim(STRCONV(os.str()), ", ");
 536 }
 537
 538
 539 // Set family according to lyx format string
 540 LyXFont & LyXFont::setLyXFamily(string const & fam)
 541 {
 542         string const s = ascii_lowercase(fam);
 543
 544         int i = 0;
 545         while (s != LyXFamilyNames[i] && LyXFamilyNames[i] != "error")
 546                 ++i;
 547         if (s == LyXFamilyNames[i])
 548                 setFamily(LyXFont::FONT_FAMILY(i));
 549         else
 550                 lyxerr << "LyXFont::setLyXFamily: Unknown family `"
 551                        << s << '\'' << endl;
 552         return *this;
 553 }
 554
 555
 556 // Set series according to lyx format string
 557 LyXFont & LyXFont::setLyXSeries(string const & ser)
 558 {
 559         string const s = ascii_lowercase(ser);
 560
 561         int i = 0;
 562         while (s != LyXSeriesNames[i] && LyXSeriesNames[i] != "error") ++i;
 563         if (s == LyXSeriesNames[i]) {
 564                 setSeries(LyXFont::FONT_SERIES(i));
 565         } else
 566                 lyxerr << "LyXFont::setLyXSeries: Unknown series `"
 567                        << s << '\'' << endl;
 568         return *this;
 569 }
 570
 571
 572 // Set shape according to lyx format string
 573 LyXFont & LyXFont::setLyXShape(string const & sha)
 574 {
 575         string const s = ascii_lowercase(sha);
 576
 577         int i = 0;
 578         while (s != LyXShapeNames[i] && LyXShapeNames[i] != "error") ++i;
 579         if (s == LyXShapeNames[i]) {
 580                 setShape(LyXFont::FONT_SHAPE(i));
 581         } else
 582                 lyxerr << "LyXFont::setLyXShape: Unknown shape `"
 583                        << s << '\'' << endl;
 584         return *this;
 585 }
 586
 587
 588 // Set size according to lyx format string
 589 LyXFont & LyXFont::setLyXSize(string const & siz)
 590 {
 591         string const s = ascii_lowercase(siz);
 592         int i = 0;
 593         while (s != LyXSizeNames[i] && LyXSizeNames[i] != "error") ++i;
 594         if (s == LyXSizeNames[i]) {
 595                 setSize(LyXFont::FONT_SIZE(i));
 596         } else
 597                 lyxerr << "LyXFont::setLyXSize: Unknown size `"
 598                        << s << '\'' << endl;
 599         return *this;
 600 }
 601
 602
 603 // Set size according to lyx format string
 604 LyXFont::FONT_MISC_STATE LyXFont::setLyXMisc(string const & siz)
 605 {
 606         string const s = ascii_lowercase(siz);
 607         int i = 0;
 608         while (s != LyXMiscNames[i] && LyXMiscNames[i] != "error") ++i;
 609         if (s == LyXMiscNames[i])
 610                 return FONT_MISC_STATE(i);
 611         lyxerr << "LyXFont::setLyXMisc: Unknown misc flag `"
 612                << s << '\'' << endl;
 613         return OFF;
 614 }
 615
 616
 617 /// Sets color after LyX text format
 618 LyXFont & LyXFont::setLyXColor(string const & col)
 619 {
 620         setColor(lcolor.getFromLyXName(col));
 621         return *this;
 622 }
 623
 624
 625 // Returns size in latex format
 626 string const LyXFont::latexSize() const
 627 {
 628         return LaTeXSizeNames[size()];
 629 }
 630
 631
 632 // Read a font definition from given file in lyx format
 633 // Used for layouts
 634 LyXFont & LyXFont::lyxRead(LyXLex & lex)
 635 {
 636         bool error = false;
 637         bool finished = false;
 638         while (!finished && lex.isOK() && !error) {
 639                 lex.next();
 640                 string const tok = ascii_lowercase(lex.getString());
 641
 642                 if (tok.empty()) {
 643                         continue;
 644                 } else if (tok == "endfont") {
 645                         finished = true;
 646                 } else if (tok == "family") {
 647                         lex.next();
 648                         string const ttok = lex.getString();
 649                         setLyXFamily(ttok);
 650                 } else if (tok == "series") {
 651                         lex.next();
 652                         string const ttok = lex.getString();
 653                         setLyXSeries(ttok);
 654                 } else if (tok == "shape") {
 655                         lex.next();
 656                         string const ttok = lex.getString();
 657                         setLyXShape(ttok);
 658                 } else if (tok == "size") {
 659                         lex.next();
 660                         string const ttok = lex.getString();
 661                         setLyXSize(ttok);
 662                 } else if (tok == "misc") {
 663                         lex.next();
 664                         string const ttok = ascii_lowercase(lex.getString());
 665
 666                         if (ttok == "no_bar") {
 667                                 setUnderbar(OFF);
 668                         } else if (ttok == "no_emph") {
 669                                 setEmph(OFF);
 670                         } else if (ttok == "no_noun") {
 671                                 setNoun(OFF);
 672                         } else if (ttok == "emph") {
 673                                 setEmph(ON);
 674                         } else if (ttok == "underbar") {
 675                                 setUnderbar(ON);
 676                         } else if (ttok == "noun") {
 677                                 setNoun(ON);
 678                         } else {
 679                                 lex.printError("Illegal misc type `$$Token´");
 680                         }
 681                 } else if (tok == "color") {
 682                         lex.next();
 683                         string const ttok = lex.getString();
 684                         setLyXColor(ttok);
 685                 } else {
 686                         lex.printError("Unknown tag `$$Token'");
 687                         error = true;
 688                 }
 689         }
 690         return *this;
 691 }
 692
 693
 694 /// Writes the changes from this font to orgfont in .lyx format in file
 695 void LyXFont::lyxWriteChanges(LyXFont const & orgfont,
 696                               ostream & os) const
 697 {
 698         os << "\n";
 699         if (orgfont.family() != family()) {
 700                 os << "\\family " << LyXFamilyNames[family()] << " \n";
 701         }
 702         if (orgfont.series() != series()) {
 703                 os << "\\series " << LyXSeriesNames[series()] << " \n";
 704         }
 705         if (orgfont.shape() != shape()) {
 706                 os << "\\shape " << LyXShapeNames[shape()] << " \n";
 707         }
 708         if (orgfont.size() != size()) {
 709                 os << "\\size " << LyXSizeNames[size()] << " \n";
 710         }
 711         if (orgfont.emph() != emph()) {
 712                 os << "\\emph " << LyXMiscNames[emph()] << " \n";
 713         }
 714         if (orgfont.number() != number()) {
 715                 os << "\\numeric " << LyXMiscNames[number()] << " \n";
 716         }
 717         if (orgfont.underbar() != underbar()) {
 718                 // This is only for backwards compatibility
 719                 switch (underbar()) {
 720                 case OFF:       os << "\\bar no \n"; break;
 721                 case ON:        os << "\\bar under \n"; break;
 722                 case TOGGLE:    lyxerr << "LyXFont::lyxWriteFontChanges: "
 723                                         "TOGGLE should not appear here!"
 724                                        << endl;
 725                 break;
 726                 case INHERIT:   os << "\\bar default \n"; break;
 727                 case IGNORE:    lyxerr << "LyXFont::lyxWriteFontChanges: "
 728                                         "IGNORE should not appear here!"
 729                                        << endl;
 730                 break;
 731                 }
 732         }
 733         if (orgfont.noun() != noun()) {
 734                 os << "\\noun " << LyXMiscNames[noun()] << " \n";
 735         }
 736         if (orgfont.color() != color()) {
 737                 // To make us file compatible with older
 738                 // lyx versions we emit "default" instead
 739                 // of "inherit"
 740                 string col_str(lcolor.getLyXName(color()));
 741                 if (col_str == "inherit") col_str = "default";
 742                 os << "\\color " << col_str << "\n";
 743         }
 744         if (orgfont.language() != language()) {
 745                 if (language())
 746                         os << "\\lang " << language()->lang() << "\n";
 747                 else
 748                         os << "\\lang unknown\n";
 749         }
 750 }
 751
 752
 753 /// Writes the head of the LaTeX needed to impose this font
 754 // Returns number of chars written.
 755 int LyXFont::latexWriteStartChanges(ostream & os, LyXFont const & base,
 756                                     LyXFont const & prev) const
 757 {
 758         int count = 0;
 759         bool env = false;
 760
 761         if (language()->babel() != base.language()->babel() &&
 762             language() != prev.language()) {
 763                 if (isRightToLeft() != prev.isRightToLeft()) {
 764                         if (isRightToLeft()) {
 765                                 os << "\\R{";
 766                                 count += 3;
 767                         } else {
 768                                 os << "\\L{";
 769                                 count += 3;
 770                         }
 771                 } else {
 772                         string const tmp =
 773                                 subst(lyxrc.language_command_local,
 774                                       "$$lang", language()->babel());
 775                         os << tmp;
 776                         count += tmp.length();
 777                 }
 778         }
 779
 780         if (number() == ON && prev.number() != ON &&
 781             language()->lang() == "hebrew") {
 782                 os << "{\\beginL ";
 783                 count += 9;
 784         }
 785
 786         LyXFont f = *this;
 787         f.reduce(base);
 788
 789         if (f.family() != INHERIT_FAMILY) {
 790                 os << '\\'
 791                    << LaTeXFamilyNames[f.family()]
 792                    << '{';
 793                 count += strlen(LaTeXFamilyNames[f.family()]) + 2;
 794                 env = true; //We have opened a new environment
 795         }
 796         if (f.series() != INHERIT_SERIES) {
 797                 os << '\\'
 798                    << LaTeXSeriesNames[f.series()]
 799                    << '{';
 800                 count += strlen(LaTeXSeriesNames[f.series()]) + 2;
 801                 env = true; //We have opened a new environment
 802         }
 803         if (f.shape() != INHERIT_SHAPE) {
 804                 os << '\\'
 805                    << LaTeXShapeNames[f.shape()]
 806                    << '{';
 807                 count += strlen(LaTeXShapeNames[f.shape()]) + 2;
 808                 env = true; //We have opened a new environment
 809         }
 810         if (f.color() != LColor::inherit && f.color() != LColor::ignore) {
 811                 os << "\\textcolor{"
 812                    << lcolor.getLaTeXName(f.color())
 813                    << "}{";
 814                 count += lcolor.getLaTeXName(f.color()).length() + 13;
 815                 env = true; //We have opened a new environment
 816         }
 817         if (f.emph() == ON) {
 818                 os << "\\emph{";
 819                 count += 6;
 820                 env = true; //We have opened a new environment
 821         }
 822         if (f.underbar() == ON) {
 823                 os << "\\underbar{";
 824                 count += 10;
 825                 env = true; //We have opened a new environment
 826         }
 827         // \noun{} is a LyX special macro
 828         if (f.noun() == ON) {
 829                 os << "\\noun{";
 830                 count += 6;
 831                 env = true; //We have opened a new environment
 832         }
 833         if (f.size() != INHERIT_SIZE) {
 834                 // If we didn't open an environment above, we open one here
 835                 if (!env) {
 836                         os << '{';
 837                         ++count;
 838                 }
 839                 os << '\\'
 840                    << LaTeXSizeNames[f.size()]
 841                    << ' ';
 842                 count += strlen(LaTeXSizeNames[f.size()]) + 2;
 843         }
 844         return count;
 845 }
 846
 847
 848 /// Writes ending block of LaTeX needed to close use of this font
 849 // Returns number of chars written
 850 // This one corresponds to latexWriteStartChanges(). (Asger)
 851 int LyXFont::latexWriteEndChanges(ostream & os, LyXFont const & base,
 852                                   LyXFont const & next) const
 853 {
 854         int count = 0;
 855         bool env = false;
 856
 857         // reduce the current font to changes against the base
 858         // font (of the layout). We use a temporary for this to
 859         // avoid changing this font instance, as that would break
 860         LyXFont f = *this;
 861         f.reduce(base);
 862
 863         if (f.family() != INHERIT_FAMILY) {
 864                 os << '}';
 865                 ++count;
 866                 env = true; // Size change need not bother about closing env.
 867         }
 868         if (f.series() != INHERIT_SERIES) {
 869                 os << '}';
 870                 ++count;
 871                 env = true; // Size change need not bother about closing env.
 872         }
 873         if (f.shape() != INHERIT_SHAPE) {
 874                 os << '}';
 875                 ++count;
 876                 env = true; // Size change need not bother about closing env.
 877         }
 878         if (f.color() != LColor::inherit && f.color() != LColor::ignore) {
 879                 os << '}';
 880                 ++count;
 881                 env = true; // Size change need not bother about closing env.
 882         }
 883         if (f.emph() == ON) {
 884                 os << '}';
 885                 ++count;
 886                 env = true; // Size change need not bother about closing env.
 887         }
 888         if (f.underbar() == ON) {
 889                 os << '}';
 890                 ++count;
 891                 env = true; // Size change need not bother about closing env.
 892         }
 893         if (f.noun() == ON) {
 894                 os << '}';
 895                 ++count;
 896                 env = true; // Size change need not bother about closing env.
 897         }
 898         if (f.size() != INHERIT_SIZE) {
 899                 // We only have to close if only size changed
 900                 if (!env) {
 901                         os << '}';
 902                         ++count;
 903                 }
 904         }
 905
 906         if (number() == ON && next.number() != ON &&
 907             language()->lang() == "hebrew") {
 908                 os << "\\endL}";
 909                 count += 6;
 910         }
 911
 912         if (language() != base.language() && language() != next.language()) {
 913                 os << '}';
 914                 ++count;
 915         }
 916
 917         return count;
 918 }
 919
 920
 921 LColor::color LyXFont::realColor() const
 922 {
 923         if (color() == LColor::none)
 924                 return LColor::foreground;
 925         return color();
 926 }
 927
 928
 929 // Convert logical attributes to concrete shape attribute
 930 LyXFont::FONT_SHAPE LyXFont::realShape() const
 931 {
 932         register FONT_SHAPE s = shape();
 933
 934         if (emph() == ON) {
 935                 if (s == UP_SHAPE)
 936                         s = ITALIC_SHAPE;
 937                 else
 938                         s = UP_SHAPE;
 939         }
 940         if (noun() == ON)
 941                 s = SMALLCAPS_SHAPE;
 942         return s;
 943 }
 944
 945
 946 ostream & operator<<(ostream & o, LyXFont::FONT_MISC_STATE fms)
 947 {
 948         return o << int(fms);
 949 }