mirror of
https://git.lyx.org/repos/lyx.git
synced 2024-11-14 23:12:31 +00:00
388 lines
8.9 KiB
C++
388 lines
8.9 KiB
C++
/**
|
|
* \file FontLoader.cpp
|
|
* This file is part of LyX, the document processor.
|
|
* Licence details can be found in the file COPYING.
|
|
*
|
|
* \author Asger Alstrup
|
|
* \author John Levon
|
|
*
|
|
* Full author contact details are available in file CREDITS.
|
|
*/
|
|
|
|
#include <config.h>
|
|
|
|
#include "FontLoader.h"
|
|
|
|
#include "FontInfo.h"
|
|
#include "GuiFontMetrics.h"
|
|
#include "qt_helpers.h"
|
|
|
|
#include "LyXRC.h"
|
|
|
|
#include "support/convert.h"
|
|
#include "support/debug.h"
|
|
#include "support/filetools.h"
|
|
#include "support/gettext.h"
|
|
#include "support/lstrings.h"
|
|
#include "support/Systemcall.h"
|
|
#include "support/Package.h"
|
|
#include "support/os.h"
|
|
|
|
#include <QFontInfo>
|
|
#include <QFontDatabase>
|
|
|
|
#include "support/lassert.h"
|
|
|
|
using namespace std;
|
|
using namespace lyx::support;
|
|
|
|
QString const math_fonts[] = {"cmex10", "cmmi10", "cmr10", "cmsy10",
|
|
"esint10", "eufm10", "msam10", "msbm10", "rsfs10", "stmary10",
|
|
"wasy10"};
|
|
int const num_math_fonts = sizeof(math_fonts) / sizeof(*math_fonts);
|
|
|
|
namespace lyx {
|
|
|
|
extern docstring const stateText(FontInfo const & f);
|
|
|
|
namespace frontend {
|
|
|
|
/**
|
|
* Matches Fonts against
|
|
* actual QFont instances, and also caches metrics.
|
|
*/
|
|
class GuiFontInfo
|
|
{
|
|
public:
|
|
GuiFontInfo(FontInfo const & f);
|
|
|
|
/// The font instance
|
|
QFont font;
|
|
/// Metrics on the font
|
|
GuiFontMetrics metrics;
|
|
};
|
|
|
|
namespace {
|
|
|
|
struct SymbolFont {
|
|
FontFamily lyx_family;
|
|
QString family;
|
|
QString xlfd;
|
|
};
|
|
|
|
SymbolFont symbol_fonts[] = {
|
|
{ SYMBOL_FAMILY,"symbol", "-*-symbol-*-*-*-*-*-*-*-*-*-*-adobe-fontspecific"},
|
|
{ CMR_FAMILY, "cmr10", "-*-cmr10-medium-*-*-*-*-*-*-*-*-*-*-*" },
|
|
{ CMSY_FAMILY, "cmsy10", "-*-cmsy10-*-*-*-*-*-*-*-*-*-*-*-*" },
|
|
{ CMM_FAMILY, "cmmi10", "-*-cmmi10-medium-*-*-*-*-*-*-*-*-*-*-*" },
|
|
{ CMEX_FAMILY, "cmex10", "-*-cmex10-*-*-*-*-*-*-*-*-*-*-*-*" },
|
|
{ MSA_FAMILY, "msam10", "-*-msam10-*-*-*-*-*-*-*-*-*-*-*-*" },
|
|
{ MSB_FAMILY, "msbm10", "-*-msbm10-*-*-*-*-*-*-*-*-*-*-*-*" },
|
|
{ EUFRAK_FAMILY,"eufm10", "-*-eufm10-medium-*-*-*-*-*-*-*-*-*-*-*" },
|
|
{ RSFS_FAMILY, "rsfs10", "-*-rsfs10-medium-*-*-*-*-*-*-*-*-*-*-*" },
|
|
{ STMARY_FAMILY,"stmary10","-*-stmary10-medium-*-*-*-*-*-*-*-*-*-*-*" },
|
|
{ WASY_FAMILY, "wasy10", "-*-wasy10-medium-*-*-*-*-*-*-*-*-*-*-*" },
|
|
{ ESINT_FAMILY, "esint10","-*-esint10-medium-*-*-*-*-*-*-*-*-*-*-*" }
|
|
};
|
|
|
|
size_t const nr_symbol_fonts = sizeof(symbol_fonts) / sizeof(symbol_fonts[0]);
|
|
|
|
/// BUTT ugly !
|
|
static GuiFontInfo * fontinfo_[NUM_FAMILIES][NUM_SERIES][NUM_SHAPE][NUM_SIZE];
|
|
|
|
|
|
// Get font info (font + metrics) for the given LyX font.
|
|
// if not cached, create it.
|
|
GuiFontInfo & fontinfo(FontInfo const & f)
|
|
{
|
|
// LASSERT: Is there anything we might do here besides crash?
|
|
LBUFERR(f.family() < NUM_FAMILIES);
|
|
LBUFERR(f.series() < NUM_SERIES);
|
|
LBUFERR(f.realShape() < NUM_SHAPE);
|
|
LBUFERR(f.size() < NUM_SIZE);
|
|
// fi is a reference to the pointer type (GuiFontInfo *) in the
|
|
// fontinfo_ table.
|
|
GuiFontInfo * & fi =
|
|
fontinfo_[f.family()][f.series()][f.realShape()][f.size()];
|
|
if (!fi)
|
|
fi = new GuiFontInfo(f);
|
|
return *fi;
|
|
}
|
|
|
|
|
|
QString rawName(QString const & family)
|
|
{
|
|
for (size_t i = 0; i < nr_symbol_fonts; ++i)
|
|
if (family == symbol_fonts[i].family)
|
|
return symbol_fonts[i].xlfd;
|
|
|
|
LYXERR(Debug::FONT, "BUG: family not found !");
|
|
return QString();
|
|
}
|
|
|
|
|
|
QString symbolFamily(FontFamily family)
|
|
{
|
|
for (size_t i = 0; i < nr_symbol_fonts; ++i) {
|
|
if (family == symbol_fonts[i].lyx_family)
|
|
return symbol_fonts[i].family;
|
|
}
|
|
return QString();
|
|
}
|
|
|
|
|
|
bool isSymbolFamily(FontFamily family)
|
|
{
|
|
return family >= SYMBOL_FAMILY && family <= ESINT_FAMILY;
|
|
}
|
|
|
|
|
|
static bool isChosenFont(QFont & font, QString const & family)
|
|
{
|
|
// QFontInfo won't find a font that has only a few glyphs at unusual
|
|
// positions, e.g. the original esint10 font.
|
|
// The workaround is to add dummy glyphs at least at all ASCII
|
|
// positions.
|
|
QFontInfo fi(font);
|
|
|
|
LYXERR(Debug::FONT, "got: " << fi.family());
|
|
|
|
if (fi.family().contains(family)) {
|
|
LYXERR(Debug::FONT, " got it ");
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
QFont symbolFont(QString const & family, bool * ok)
|
|
{
|
|
LYXERR(Debug::FONT, "Looking for font family " << family << " ... ");
|
|
QString upper = family;
|
|
upper[0] = family[0].toUpper();
|
|
|
|
QFont font;
|
|
font.setKerning(false);
|
|
font.setFamily(family);
|
|
|
|
if (isChosenFont(font, family)) {
|
|
LYXERR(Debug::FONT, "normal!");
|
|
*ok = true;
|
|
return font;
|
|
}
|
|
|
|
LYXERR(Debug::FONT, "Trying " << upper << " ... ");
|
|
font.setFamily(upper);
|
|
|
|
if (isChosenFont(font, upper)) {
|
|
LYXERR(Debug::FONT, "upper!");
|
|
*ok = true;
|
|
return font;
|
|
}
|
|
|
|
// A simple setFamily() fails on Qt 2
|
|
|
|
QString const raw = rawName(family);
|
|
LYXERR(Debug::FONT, "Trying " << raw << " ... ");
|
|
font.setRawName(raw);
|
|
|
|
if (isChosenFont(font, family)) {
|
|
LYXERR(Debug::FONT, "raw version!");
|
|
*ok = true;
|
|
return font;
|
|
}
|
|
|
|
LYXERR(Debug::FONT, " FAILED :-(");
|
|
*ok = false;
|
|
return font;
|
|
}
|
|
|
|
} // namespace anon
|
|
|
|
|
|
FontLoader::FontLoader()
|
|
{
|
|
QString const fonts_dir =
|
|
toqstr(addPath(package().system_support().absFileName(), "fonts"));
|
|
|
|
for (int i = 0 ; i < num_math_fonts; ++i) {
|
|
QString const font_file = fonts_dir + '/' + math_fonts[i] + ".ttf";
|
|
int fontID = QFontDatabase::addApplicationFont(font_file);
|
|
|
|
LYXERR(Debug::FONT, "Adding font " << font_file
|
|
<< (fontID < 0 ? " FAIL" : " OK"));
|
|
}
|
|
|
|
for (int i1 = 0; i1 < NUM_FAMILIES; ++i1)
|
|
for (int i2 = 0; i2 < NUM_SERIES; ++i2)
|
|
for (int i3 = 0; i3 < NUM_SHAPE; ++i3)
|
|
for (int i4 = 0; i4 < NUM_SIZE; ++i4)
|
|
fontinfo_[i1][i2][i3][i4] = 0;
|
|
}
|
|
|
|
|
|
void FontLoader::update()
|
|
{
|
|
for (int i1 = 0; i1 < NUM_FAMILIES; ++i1)
|
|
for (int i2 = 0; i2 < NUM_SERIES; ++i2)
|
|
for (int i3 = 0; i3 < NUM_SHAPE; ++i3)
|
|
for (int i4 = 0; i4 < NUM_SIZE; ++i4) {
|
|
delete fontinfo_[i1][i2][i3][i4];
|
|
fontinfo_[i1][i2][i3][i4] = 0;
|
|
}
|
|
}
|
|
|
|
|
|
FontLoader::~FontLoader()
|
|
{
|
|
update();
|
|
}
|
|
|
|
/////////////////////////////////////////////////
|
|
|
|
|
|
static QString makeFontName(QString const & family, QString const & foundry)
|
|
{
|
|
QString res = family;
|
|
if (!foundry.isEmpty())
|
|
res += " [" + foundry + ']';
|
|
return res;
|
|
}
|
|
|
|
|
|
GuiFontInfo::GuiFontInfo(FontInfo const & f)
|
|
: metrics(QFont())
|
|
{
|
|
font.setKerning(false);
|
|
QString const pat = symbolFamily(f.family());
|
|
if (!pat.isEmpty()) {
|
|
bool ok;
|
|
font = symbolFont(pat, &ok);
|
|
} else {
|
|
switch (f.family()) {
|
|
case ROMAN_FAMILY: {
|
|
QString family = makeFontName(toqstr(lyxrc.roman_font_name),
|
|
toqstr(lyxrc.roman_font_foundry));
|
|
font.setFamily(family);
|
|
#ifdef Q_WS_MACX
|
|
#if QT_VERSION >= 0x040300 //&& QT_VERSION < 0x040800
|
|
// Workaround for a Qt bug, see http://www.lyx.org/trac/ticket/3684
|
|
// and http://bugreports.qt.nokia.com/browse/QTBUG-11145.
|
|
// FIXME: Check whether this is really fixed in Qt 4.8
|
|
if (family == "Times" && !font.exactMatch())
|
|
font.setFamily("Times New Roman");
|
|
#endif
|
|
#endif
|
|
break;
|
|
}
|
|
case SANS_FAMILY:
|
|
font.setFamily(makeFontName(toqstr(lyxrc.sans_font_name),
|
|
toqstr(lyxrc.sans_font_foundry)));
|
|
break;
|
|
case TYPEWRITER_FAMILY:
|
|
font.setFamily(makeFontName(toqstr(lyxrc.typewriter_font_name),
|
|
toqstr(lyxrc.typewriter_font_foundry)));
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
switch (f.series()) {
|
|
case MEDIUM_SERIES:
|
|
font.setWeight(QFont::Normal);
|
|
break;
|
|
case BOLD_SERIES:
|
|
font.setWeight(QFont::Bold);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
switch (f.realShape()) {
|
|
case ITALIC_SHAPE:
|
|
case SLANTED_SHAPE:
|
|
font.setItalic(true);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
LYXERR(Debug::FONT, "Font '" << stateText(f)
|
|
<< "' matched by\n" << font.family());
|
|
|
|
// Is this an exact match?
|
|
if (font.exactMatch())
|
|
LYXERR(Debug::FONT, "This font is an exact match");
|
|
else
|
|
LYXERR(Debug::FONT, "This font is NOT an exact match");
|
|
|
|
LYXERR(Debug::FONT, "XFLD: " << font.rawName());
|
|
|
|
font.setPointSizeF(convert<double>(lyxrc.font_sizes[f.size()])
|
|
* lyxrc.zoom / 100.0);
|
|
|
|
LYXERR(Debug::FONT, "The font has size: " << font.pointSizeF());
|
|
|
|
if (f.realShape() != SMALLCAPS_SHAPE) {
|
|
metrics = GuiFontMetrics(font);
|
|
} else {
|
|
// handle small caps ourselves ...
|
|
FontInfo smallfont = f;
|
|
smallfont.decSize().decSize().setShape(UP_SHAPE);
|
|
QFont font2(font);
|
|
font2.setKerning(false);
|
|
font2.setPointSizeF(convert<double>(lyxrc.font_sizes[smallfont.size()])
|
|
* lyxrc.zoom / 100.0);
|
|
|
|
metrics = GuiFontMetrics(font, font2);
|
|
}
|
|
}
|
|
|
|
|
|
bool FontLoader::available(FontInfo const & f)
|
|
{
|
|
static vector<int> cache_set(NUM_FAMILIES, false);
|
|
static vector<int> cache(NUM_FAMILIES, false);
|
|
|
|
FontFamily family = f.family();
|
|
if (cache_set[family])
|
|
return cache[family];
|
|
cache_set[family] = true;
|
|
|
|
QString const pat = symbolFamily(family);
|
|
if (pat.isEmpty())
|
|
// We don't care about non-symbol fonts
|
|
return false;
|
|
|
|
bool ok;
|
|
symbolFont(pat, &ok);
|
|
if (!ok)
|
|
return false;
|
|
|
|
cache[family] = true;
|
|
return true;
|
|
}
|
|
|
|
|
|
FontMetrics const & FontLoader::metrics(FontInfo const & f)
|
|
{
|
|
return fontinfo(f).metrics;
|
|
}
|
|
|
|
|
|
GuiFontMetrics const & getFontMetrics(FontInfo const & f)
|
|
{
|
|
return fontinfo(f).metrics;
|
|
}
|
|
|
|
|
|
QFont const & getFont(FontInfo const & f)
|
|
{
|
|
return fontinfo(f).font;
|
|
}
|
|
|
|
} // namespace frontend
|
|
} // namespace lyx
|