lyx_mirror/src/Font.cpp
Juergen Spitzmueller 1db9ff9b1a Add a way to surpass special English treatment in useBabel
Normally, we do not load babel when English is the only language. However, if we check if babel is used from Font::validate, we need to surpass this test, else no secondary language is registered if English is the main language.
2012-08-08 17:02:12 +02:00

750 lines
21 KiB
C++

/**
* \file src/Font.cpp
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Lars Gullik Bjønnes
* \author Jean-Marc Lasgouttes
* \author Angus Leeming
* \author André Pönitz
* \author Dekel Tsur
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "Font.h"
#include "BufferParams.h" // stateText
#include "ColorSet.h"
#include "Encoding.h"
#include "Language.h"
#include "LaTeXFeatures.h"
#include "Lexer.h"
#include "LyXRC.h"
#include "output_latex.h"
#include "OutputParams.h"
#include "support/lassert.h"
#include "support/convert.h"
#include "support/debug.h"
#include "support/gettext.h"
#include "support/lstrings.h"
#include <cstring>
using namespace std;
using namespace lyx::support;
namespace lyx {
//
// Strings used to read and write .lyx format files
//
// These are defined in FontInfo.cpp
extern char const * LyXFamilyNames[NUM_FAMILIES + 2];
extern char const * LyXSeriesNames[4];
extern char const * LyXShapeNames[6];
extern char const * LyXSizeNames[14];
extern char const * LyXMiscNames[5];
//
// Names for the GUI
//
namespace {
char const * GUIFamilyNames[NUM_FAMILIES + 2 /* default & error */] =
{ N_("Roman"), N_("Sans Serif"), N_("Typewriter"), N_("Symbol"),
"cmr", "cmsy", "cmm", "cmex", "msa", "msb", "eufrak", "rsfs", "wasy", "esint",
N_("Inherit"), N_("Ignore") };
char const * GUISeriesNames[4] =
{ N_("Medium"), N_("Bold"), N_("Inherit"), N_("Ignore") };
char const * GUIShapeNames[6] =
{ N_("Upright"), N_("Italic"), N_("Slanted"), N_("Smallcaps"), N_("Inherit"),
N_("Ignore") };
char const * GUISizeNames[14] =
{ N_("Tiny"), N_("Smallest"), N_("Smaller"), N_("Small"), N_("Normal"), N_("Large"),
N_("Larger"), N_("Largest"), N_("Huge"), N_("Huger"), N_("Increase"), N_("Decrease"),
N_("Inherit"), N_("Ignore") };
char const * GUIMiscNames[5] =
{ N_("Off"), N_("On"), N_("Toggle"), N_("Inherit"), N_("Ignore") };
//
// Strings used to write LaTeX files
//
char const * LaTeXFamilyNames[6] =
{ "textrm", "textsf", "texttt", "error1", "error2", "error3" };
char const * LaTeXSeriesNames[4] =
{ "textmd", "textbf", "error4", "error5" };
char const * LaTeXShapeNames[6] =
{ "textup", "textit", "textsl", "textsc", "error6", "error7" };
char const * LaTeXSizeNames[14] =
{ "tiny", "scriptsize", "footnotesize", "small", "normalsize", "large",
"Large", "LARGE", "huge", "Huge", "error8", "error9", "error10", "error11" };
} // namespace anon
Font::Font(FontInfo bits, Language const * l)
: bits_(bits), lang_(l), open_encoding_(false)
{
if (!lang_)
lang_ = default_language;
}
bool Font::isRightToLeft() const
{
return lang_->rightToLeft();
}
bool Font::isVisibleRightToLeft() const
{
return (lang_->rightToLeft() &&
bits_.number() != FONT_ON);
}
void Font::setLanguage(Language const * l)
{
lang_ = l;
}
/// Updates font settings according to request
void Font::update(Font const & newfont,
Language const * document_language,
bool toggleall)
{
bits_.update(newfont.fontInfo(), toggleall);
if (newfont.language() == language() && toggleall)
if (language() == document_language)
setLanguage(default_language);
else
setLanguage(document_language);
else if (newfont.language() == reset_language)
setLanguage(document_language);
else if (newfont.language() != ignore_language)
setLanguage(newfont.language());
}
docstring const stateText(FontInfo const & f)
{
odocstringstream os;
if (f.family() != INHERIT_FAMILY)
os << _(GUIFamilyNames[f.family()]) << ", ";
if (f.series() != INHERIT_SERIES)
os << _(GUISeriesNames[f.series()]) << ", ";
if (f.shape() != INHERIT_SHAPE)
os << _(GUIShapeNames[f.shape()]) << ", ";
if (f.size() != FONT_SIZE_INHERIT)
os << _(GUISizeNames[f.size()]) << ", ";
if (f.color() != Color_inherit)
os << lcolor.getGUIName(f.color()) << ", ";
// FIXME: uncomment this when we support background.
//if (f.background() != Color_inherit)
// os << lcolor.getGUIName(f.background()) << ", ";
if (f.emph() != FONT_INHERIT)
os << bformat(_("Emphasis %1$s, "),
_(GUIMiscNames[f.emph()]));
if (f.underbar() != FONT_INHERIT)
os << bformat(_("Underline %1$s, "),
_(GUIMiscNames[f.underbar()]));
if (f.strikeout() != FONT_INHERIT)
os << bformat(_("Strikeout %1$s, "),
_(GUIMiscNames[f.strikeout()]));
if (f.uuline() != FONT_INHERIT)
os << bformat(_("Double underline %1$s, "),
_(GUIMiscNames[f.uuline()]));
if (f.uwave() != FONT_INHERIT)
os << bformat(_("Wavy underline %1$s, "),
_(GUIMiscNames[f.uwave()]));
if (f.noun() != FONT_INHERIT)
os << bformat(_("Noun %1$s, "),
_(GUIMiscNames[f.noun()]));
if (f == inherit_font)
os << _("Default") << ", ";
return os.str();
}
docstring const Font::stateText(BufferParams * params) const
{
odocstringstream os;
os << lyx::stateText(bits_);
if (!params || (language() != params->language))
os << bformat(_("Language: %1$s, "),
_(language()->display()));
if (bits_.number() != FONT_OFF)
os << " " << bformat(_("Number %1$s"),
_(GUIMiscNames[bits_.number()]));
return rtrim(os.str(), ", ");
}
// Returns size in latex format
string const Font::latexSize() const
{
return LaTeXSizeNames[bits_.size()];
}
/// Writes the changes from this font to orgfont in .lyx format in file
void Font::lyxWriteChanges(Font const & orgfont,
ostream & os) const
{
os << "\n";
if (orgfont.fontInfo().family() != bits_.family())
os << "\\family " << LyXFamilyNames[bits_.family()] << "\n";
if (orgfont.fontInfo().series() != bits_.series())
os << "\\series " << LyXSeriesNames[bits_.series()] << "\n";
if (orgfont.fontInfo().shape() != bits_.shape())
os << "\\shape " << LyXShapeNames[bits_.shape()] << "\n";
if (orgfont.fontInfo().size() != bits_.size())
os << "\\size " << LyXSizeNames[bits_.size()] << "\n";
if (orgfont.fontInfo().emph() != bits_.emph())
os << "\\emph " << LyXMiscNames[bits_.emph()] << "\n";
if (orgfont.fontInfo().number() != bits_.number())
os << "\\numeric " << LyXMiscNames[bits_.number()] << "\n";
if (orgfont.fontInfo().underbar() != bits_.underbar()) {
// This is only for backwards compatibility
switch (bits_.underbar()) {
case FONT_OFF: os << "\\bar no\n"; break;
case FONT_ON: os << "\\bar under\n"; break;
case FONT_TOGGLE: lyxerr << "Font::lyxWriteFontChanges: "
"FONT_TOGGLE should not appear here!"
<< endl;
break;
case FONT_INHERIT: os << "\\bar default\n"; break;
case FONT_IGNORE: lyxerr << "Font::lyxWriteFontChanges: "
"IGNORE should not appear here!"
<< endl;
break;
}
}
if (orgfont.fontInfo().strikeout() != bits_.strikeout()) {
os << "\\strikeout " << LyXMiscNames[bits_.strikeout()] << "\n";
}
if (orgfont.fontInfo().uuline() != bits_.uuline()) {
os << "\\uuline " << LyXMiscNames[bits_.uuline()] << "\n";
}
if (orgfont.fontInfo().uwave() != bits_.uwave()) {
os << "\\uwave " << LyXMiscNames[bits_.uwave()] << "\n";
}
if (orgfont.fontInfo().noun() != bits_.noun()) {
os << "\\noun " << LyXMiscNames[bits_.noun()] << "\n";
}
if (orgfont.fontInfo().color() != bits_.color())
os << "\\color " << lcolor.getLyXName(bits_.color()) << '\n';
// FIXME: uncomment this when we support background.
//if (orgfont.fontInfo().background() != bits_.background())
// os << "\\color " << lcolor.getLyXName(bits_.background()) << '\n';
if (orgfont.language() != language() &&
language() != latex_language) {
if (language())
os << "\\lang " << language()->lang() << "\n";
else
os << "\\lang unknown\n";
}
}
/// Writes the head of the LaTeX needed to impose this font
// Returns number of chars written.
int Font::latexWriteStartChanges(odocstream & os, BufferParams const & bparams,
OutputParams const & runparams,
Font const & base,
Font const & prev) const
{
bool env = false;
int count = 0;
// polyglossia or babel?
if (runparams.use_polyglossia
&& language()->lang() != base.language()->lang()
&& language() != prev.language()) {
if (!language()->polyglossia().empty()) {
string tmp = "\\text" + language()->polyglossia();
if (!language()->polyglossiaOpts().empty())
tmp += "[" + language()->polyglossiaOpts() + "]";
tmp += "{";
os << from_ascii(tmp);
count += tmp.length();
}
} else if (language()->babel() != base.language()->babel() &&
language() != prev.language()) {
if (language()->lang() == "farsi") {
os << "\\textFR{";
count += 8;
} else if (!isRightToLeft() &&
base.language()->lang() == "farsi") {
os << "\\textLR{";
count += 8;
} else if (language()->lang() == "arabic_arabi") {
os << "\\textAR{";
count += 8;
} else if (!isRightToLeft() &&
base.language()->lang() == "arabic_arabi") {
os << "\\textLR{";
count += 8;
// currently the remaining RTL languages are arabic_arabtex and hebrew
} else if (isRightToLeft() != prev.isRightToLeft()) {
if (isRightToLeft()) {
os << "\\R{";
count += 3;
} else {
os << "\\L{";
count += 3;
}
} else if (!language()->babel().empty()) {
string const tmp =
subst(lyxrc.language_command_local,
"$$lang", language()->babel());
os << from_ascii(tmp);
count += tmp.length();
} else {
os << '{';
count += 1;
}
}
if (language()->encoding()->package() == Encoding::CJK) {
pair<bool, int> const c = switchEncoding(os, bparams,
runparams, *(language()->encoding()));
if (c.first) {
open_encoding_ = true;
count += c.second;
runparams.encoding = language()->encoding();
}
}
// When the current language is Hebrew, Arabic, or Farsi
// the numbers are written Left-to-Right. ArabTeX package
// reorders the number automatically but the packages used
// for Hebrew and Farsi (Arabi) do not.
if (bits_.number() == FONT_ON && prev.fontInfo().number() != FONT_ON
&& (language()->lang() == "hebrew"
|| language()->lang() == "farsi"
|| language()->lang() == "arabic_arabi")) {
os << "{\\beginL ";
count += 9;
}
FontInfo f = bits_;
f.reduce(base.bits_);
if (f.family() != INHERIT_FAMILY) {
os << '\\'
<< LaTeXFamilyNames[f.family()]
<< '{';
count += strlen(LaTeXFamilyNames[f.family()]) + 2;
env = true; //We have opened a new environment
}
if (f.series() != INHERIT_SERIES) {
os << '\\'
<< LaTeXSeriesNames[f.series()]
<< '{';
count += strlen(LaTeXSeriesNames[f.series()]) + 2;
env = true; //We have opened a new environment
}
if (f.shape() != INHERIT_SHAPE) {
os << '\\'
<< LaTeXShapeNames[f.shape()]
<< '{';
count += strlen(LaTeXShapeNames[f.shape()]) + 2;
env = true; //We have opened a new environment
}
if (f.color() != Color_inherit && f.color() != Color_ignore) {
os << "\\textcolor{"
<< from_ascii(lcolor.getLaTeXName(f.color()))
<< "}{";
count += lcolor.getLaTeXName(f.color()).length() + 13;
env = true; //We have opened a new environment
}
// FIXME: uncomment this when we support background.
/*
if (f.background() != Color_inherit && f.background() != Color_ignore) {
os << "\\textcolor{"
<< from_ascii(lcolor.getLaTeXName(f.background()))
<< "}{";
count += lcolor.getLaTeXName(f.background()).length() + 13;
env = true; //We have opened a new environment
}
*/
if (f.emph() == FONT_ON) {
os << "\\emph{";
count += 6;
env = true; //We have opened a new environment
}
if (f.underbar() == FONT_ON) {
os << "\\uline{";
count += 10;
runparams.inulemcmd = true;
env = true; //We have opened a new environment
}
if (f.strikeout() == FONT_ON) {
os << "\\sout{";
count += 9;
runparams.inulemcmd = true;
env = true; //We have opened a new environment
}
if (f.uuline() == FONT_ON) {
os << "\\uuline{";
count += 11;
runparams.inulemcmd = true;
env = true; //We have opened a new environment
}
if (f.uwave() == FONT_ON) {
os << "\\uwave{";
count += 10;
runparams.inulemcmd = true;
env = true; //We have opened a new environment
}
// \noun{} is a LyX special macro
if (f.noun() == FONT_ON) {
os << "\\noun{";
count += 6;
env = true; //We have opened a new environment
}
if (f.size() != FONT_SIZE_INHERIT) {
// If we didn't open an environment above, we open one here
if (!env) {
os << '{';
++count;
}
os << '\\'
<< LaTeXSizeNames[f.size()]
<< ' ';
count += strlen(LaTeXSizeNames[f.size()]) + 2;
}
return count;
}
/// Writes ending block of LaTeX needed to close use of this font
// Returns number of chars written
// This one corresponds to latexWriteStartChanges(). (Asger)
int Font::latexWriteEndChanges(otexstream & os, BufferParams const & bparams,
OutputParams const & runparams,
Font const & base,
Font const & next,
bool const & closeLanguage) const
{
int count = 0;
bool env = false;
// reduce the current font to changes against the base
// font (of the layout). We use a temporary for this to
// avoid changing this font instance, as that would break
FontInfo f = bits_;
f.reduce(base.bits_);
if (f.family() != INHERIT_FAMILY) {
os << '}';
++count;
env = true; // Size change need not bother about closing env.
}
if (f.series() != INHERIT_SERIES) {
os << '}';
++count;
env = true; // Size change need not bother about closing env.
}
if (f.shape() != INHERIT_SHAPE) {
os << '}';
++count;
env = true; // Size change need not bother about closing env.
}
if (f.color() != Color_inherit && f.color() != Color_ignore) {
os << '}';
++count;
env = true; // Size change need not bother about closing env.
}
if (f.emph() == FONT_ON) {
os << '}';
++count;
env = true; // Size change need not bother about closing env.
}
if (f.underbar() == FONT_ON) {
os << '}';
++count;
runparams.inulemcmd = false;
env = true; // Size change need not bother about closing env.
}
if (f.strikeout() == FONT_ON) {
os << '}';
++count;
runparams.inulemcmd = false;
env = true; // Size change need not bother about closing env.
}
if (f.uuline() == FONT_ON) {
os << '}';
++count;
runparams.inulemcmd = false;
env = true; // Size change need not bother about closing env.
}
if (f.uwave() == FONT_ON) {
os << '}';
++count;
runparams.inulemcmd = false;
env = true; // Size change need not bother about closing env.
}
if (f.noun() == FONT_ON) {
os << '}';
++count;
env = true; // Size change need not bother about closing env.
}
if (f.size() != FONT_SIZE_INHERIT) {
// We only have to close if only size changed
if (!env) {
os << '}';
++count;
}
}
// When the current language is Hebrew, Arabic, or Farsi
// the numbers are written Left-to-Right. ArabTeX package
// reorders the number automatically but the packages used
// for Hebrew and Farsi (Arabi) do not.
if (bits_.number() == FONT_ON && next.fontInfo().number() != FONT_ON
&& (language()->lang() == "hebrew"
|| language()->lang() == "farsi"
|| language()->lang() == "arabic_arabi")) {
os << "\\endL}";
count += 6;
}
if (open_encoding_) {
// We need to close the encoding even if it does not change
// to do correct environment nesting
Encoding const * const ascii = encodings.fromLyXName("ascii");
pair<bool, int> const c = switchEncoding(os.os(), bparams,
runparams, *ascii);
LASSERT(c.first, /**/);
count += c.second;
runparams.encoding = ascii;
open_encoding_ = false;
}
if (closeLanguage
&& language() != base.language() && language() != next.language()
&& language()->encoding()->package() != Encoding::CJK) {
os << '}';
++count;
}
return count;
}
string Font::toString(bool const toggle) const
{
string const lang = (language() == reset_language)
? "reset" : language()->lang();
ostringstream os;
os << "family " << bits_.family() << '\n'
<< "series " << bits_.series() << '\n'
<< "shape " << bits_.shape() << '\n'
<< "size " << bits_.size() << '\n'
<< "emph " << bits_.emph() << '\n'
<< "underbar " << bits_.underbar() << '\n'
<< "strikeout " << bits_.strikeout() << '\n'
<< "uuline " << bits_.uuline() << '\n'
<< "uwave " << bits_.uwave() << '\n'
<< "noun " << bits_.noun() << '\n'
<< "number " << bits_.number() << '\n'
<< "color " << bits_.color() << '\n'
<< "language " << lang << '\n'
<< "toggleall " << convert<string>(toggle);
return os.str();
}
bool Font::fromString(string const & data, bool & toggle)
{
istringstream is(data);
Lexer lex;
lex.setStream(is);
int nset = 0;
while (lex.isOK()) {
string token;
if (lex.next())
token = lex.getString();
if (token.empty() || !lex.next())
break;
if (token == "family") {
int const next = lex.getInteger();
bits_.setFamily(FontFamily(next));
} else if (token == "series") {
int const next = lex.getInteger();
bits_.setSeries(FontSeries(next));
} else if (token == "shape") {
int const next = lex.getInteger();
bits_.setShape(FontShape(next));
} else if (token == "size") {
int const next = lex.getInteger();
bits_.setSize(FontSize(next));
} else if (token == "emph" || token == "underbar" ||
token == "noun" || token == "number" ||
token == "uuline" || token == "uwave" ||
token == "strikeout") {
int const next = lex.getInteger();
FontState const misc = FontState(next);
if (token == "emph")
bits_.setEmph(misc);
else if (token == "underbar")
bits_.setUnderbar(misc);
else if (token == "strikeout")
bits_.setStrikeout(misc);
else if (token == "uuline")
bits_.setUuline(misc);
else if (token == "uwave")
bits_.setUwave(misc);
else if (token == "noun")
bits_.setNoun(misc);
else if (token == "number")
bits_.setNumber(misc);
} else if (token == "color") {
int const next = lex.getInteger();
bits_.setColor(ColorCode(next));
/**
} else if (token == "background") {
int const next = lex.getInteger();
bits_.setBackground(ColorCode(next));
*/
} else if (token == "language") {
string const next = lex.getString();
setLanguage(languages.getLanguage(next));
} else if (token == "toggleall") {
toggle = lex.getBool();
} else {
// Unrecognised token
break;
}
++nset;
}
return (nset > 0);
}
void Font::validate(LaTeXFeatures & features) const
{
BufferParams const & bparams = features.bufferParams();
Language const * doc_language = bparams.language;
if (bits_.noun() == FONT_ON) {
LYXERR(Debug::LATEX, "font.noun: " << bits_.noun());
features.require("noun");
LYXERR(Debug::LATEX, "Noun enabled. Font: " << to_utf8(stateText(0)));
}
if (bits_.underbar() == FONT_ON) {
LYXERR(Debug::LATEX, "font.underline: " << bits_.underbar());
features.require("ulem");
LYXERR(Debug::LATEX, "Underline enabled. Font: " << to_utf8(stateText(0)));
}
if (bits_.strikeout() == FONT_ON) {
LYXERR(Debug::LATEX, "font.strikeout: " << bits_.strikeout());
features.require("ulem");
LYXERR(Debug::LATEX, "Strikeout enabled. Font: " << to_utf8(stateText(0)));
}
if (bits_.uuline() == FONT_ON) {
LYXERR(Debug::LATEX, "font.uuline: " << bits_.uuline());
features.require("ulem");
LYXERR(Debug::LATEX, "Double underline enabled. Font: " << to_utf8(stateText(0)));
}
if (bits_.uwave() == FONT_ON) {
LYXERR(Debug::LATEX, "font.uwave: " << bits_.uwave());
features.require("ulem");
LYXERR(Debug::LATEX, "Wavy underline enabled. Font: " << to_utf8(stateText(0)));
}
switch (bits_.color()) {
case Color_none:
case Color_inherit:
case Color_ignore:
// probably we should put here all interface colors used for
// font displaying! For now I just add this ones I know of (Jug)
case Color_latex:
case Color_notelabel:
break;
default:
features.require("color");
LYXERR(Debug::LATEX, "Color enabled. Font: " << to_utf8(stateText(0)));
}
// FIXME: Do something for background and soul package?
if (((features.usePolyglossia() && lang_->polyglossia() != doc_language->polyglossia())
|| (features.useBabel(true) && lang_->babel() != doc_language->babel()))
&& lang_ != ignore_language
&& lang_ != latex_language)
{
features.useLanguage(lang_);
LYXERR(Debug::LATEX, "Found language " << lang_->lang());
}
}
ostream & operator<<(ostream & os, FontState fms)
{
return os << int(fms);
}
ostream & operator<<(ostream & os, FontInfo const & f)
{
return os << "font:"
<< " family " << f.family()
<< " series " << f.series()
<< " shape " << f.shape()
<< " size " << f.size()
<< " color " << f.color()
// FIXME: uncomment this when we support background.
//<< " background " << f.background()
<< " emph " << f.emph()
<< " underbar " << f.underbar()
<< " strikeout " << f.strikeout()
<< " uuline " << f.uuline()
<< " uwave " << f.uwave()
<< " noun " << f.noun()
<< " number " << f.number();
}
ostream & operator<<(ostream & os, Font const & font)
{
return os << font.bits_
<< " lang: " << (font.lang_ ? font.lang_->lang() : 0);
}
} // namespace lyx