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Add support for reading fonts from TTC files on Windows Embedded 

Task-number: QTBUG-49810
Change-Id: Ibfc999a15b17899ab2c87d6741dc69b0871699bb
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@theqtcompany.com>
bb10
Andy Shaw 2015-12-10 14:10:01 +01:00 committed by Andy Shaw
parent 0150cd3617
commit 482165057d
1 changed files with 59 additions and 12 deletions
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71
src/plugins/platforms/windows/qwindowsfontdatabase_ft.cpp
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@ -194,7 +194,14 @@ typedef struct {
quint16 stringOffset;
} NAME_RECORD;
static QString fontNameFromTTFile(const QString &filename)
typedef struct {
quint32 tag;
quint16 majorVersion;
quint16 minorVersion;
quint32 numFonts;
} TTC_TABLE_HEADER;
static QString fontNameFromTTFile(const QString &filename, int startPos = 0)
{
QFile f(filename);
QString retVal;
@ -202,6 +209,7 @@ static QString fontNameFromTTFile(const QString &filename)
qint64 bytesToRead;
if (f.open(QIODevice::ReadOnly)) {
f.seek(startPos);
OFFSET_TABLE ttOffsetTable;
bytesToRead = sizeof(OFFSET_TABLE);
bytesRead = f.read((char*)&ttOffsetTable, bytesToRead);
@ -282,6 +290,37 @@ static QString fontNameFromTTFile(const QString &filename)
return retVal;
}
static QStringList fontNamesFromTTCFile(const QString &filename)
{
QFile f(filename);
QStringList retVal;
qint64 bytesRead;
qint64 bytesToRead;
if (f.open(QIODevice::ReadOnly)) {
TTC_TABLE_HEADER ttcTableHeader;
bytesToRead = sizeof(TTC_TABLE_HEADER);
bytesRead = f.read((char*)&ttcTableHeader, bytesToRead);
if (bytesToRead != bytesRead)
return retVal;
ttcTableHeader.majorVersion = qFromBigEndian(ttcTableHeader.majorVersion);
ttcTableHeader.minorVersion = qFromBigEndian(ttcTableHeader.minorVersion);
ttcTableHeader.numFonts = qFromBigEndian(ttcTableHeader.numFonts);
if (ttcTableHeader.majorVersion < 1 || ttcTableHeader.majorVersion > 2)
return retVal;
QVarLengthArray<quint32> offsetTable(ttcTableHeader.numFonts);
bytesToRead = sizeof(offsetTable) * ttcTableHeader.numFonts;
bytesRead = f.read((char*)offsetTable.data(), bytesToRead);
if (bytesToRead != bytesRead)
return retVal;
f.close();
for (int i = 0; i < (int)ttcTableHeader.numFonts; ++i)
retVal << fontNameFromTTFile(filename, qFromBigEndian(offsetTable[i]));
}
return retVal;
}
static inline QString fontSettingsOrganization() { return QStringLiteral("Qt-Project"); }
static inline QString fontSettingsApplication() { return QStringLiteral("Qtbase"); }
static inline QString fontSettingsGroup() { return QStringLiteral("CEFontCache"); }
@ -308,20 +347,28 @@ static QString findFontFile(const QString &faceName)
//empty the cache first, as it seems that it is dirty
settings.remove(QString());
QDirIterator it(QStringLiteral("/Windows"), QStringList(QStringLiteral("*.ttf")), QDir::Files | QDir::Hidden | QDir::System);
QDirIterator it(QStringLiteral("/Windows"), QStringList() << QStringLiteral("*.ttf") << QStringLiteral("*.ttc"), QDir::Files | QDir::Hidden | QDir::System);
const QLatin1Char lowerF('f');
const QLatin1Char upperF('F');
while (it.hasNext()) {
const QString fontFile = it.next();
const QString fontName = fontNameFromTTFile(fontFile);
if (fontName.isEmpty())
continue;
fontCache.insert(fontName, fontFile);
settings.setValue(fontName, fontFile);
QStringList fontNames;
const QChar c = fontFile[fontFile.size() - 1];
if (c == lowerF || c == upperF)
fontNames << fontNameFromTTFile(fontFile);
else
fontNames << fontNamesFromTTCFile(fontFile);
foreach (const QString fontName, fontNames) {
if (fontName.isEmpty())
continue;
fontCache.insert(fontName, fontFile);
settings.setValue(fontName, fontFile);
if (localizedName(fontName)) {
QString englishFontName = getEnglishName(fontName);
fontCache.insert(englishFontName, fontFile);
settings.setValue(englishFontName, fontFile);
if (localizedName(fontName)) {
QString englishFontName = getEnglishName(fontName);
fontCache.insert(englishFontName, fontFile);
settings.setValue(englishFontName, fontFile);
}
}
}
settings.endGroup();