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Fix writingSystems determination by code page range bits

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Do exactly what windows font database does to determine
writingSystems in case of non-truetype fonts.

Task-number: QTBUG-13585

Change-Id: I4a1a48d74c36e403c31f20847cf80295d89a34bc
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
This commit is contained in:
Konstantin Ritt 2013-12-17 09:49:40 +02:00 committed by The Qt Project
parent dbf3c559da
commit 4b2c73b476
3 changed files with 42 additions and 8 deletions
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44
src/gui/text/qplatformfontdatabase.cpp
View File

@ -459,10 +459,20 @@ static const ushort requiredUnicodeBits[QFontDatabase::WritingSystemsCount][2] =
};
enum {
Latin1CsbBit = 0,
CentralEuropeCsbBit = 1,
TurkishCsbBit = 4,
BalticCsbBit = 7,
CyrillicCsbBit = 2,
GreekCsbBit = 3,
HebrewCsbBit = 5,
ArabicCsbBit = 6,
VietnameseCsbBit = 8,
SimplifiedChineseCsbBit = 18,
TraditionalChineseCsbBit = 20,
JapaneseCsbBit = 17,
KoreanCsbBit = 21
KoreanCsbBit = 19,
KoreanJohabCsbBit = 21
};
/*!
@ -492,6 +502,36 @@ QSupportedWritingSystems QPlatformFontDatabase::writingSystemsFromTrueTypeBits(q
}
}
}
if (codePageRange[0] & ((1 << Latin1CsbBit) | (1 << CentralEuropeCsbBit) | (1 << TurkishCsbBit) | (1 << BalticCsbBit))) {
writingSystems.setSupported(QFontDatabase::Latin);
hasScript = true;
//qDebug("font %s supports Latin", familyName.latin1());
}
if (codePageRange[0] & (1 << CyrillicCsbBit)) {
writingSystems.setSupported(QFontDatabase::Cyrillic);
hasScript = true;
//qDebug("font %s supports Cyrillic", familyName.latin1());
}
if (codePageRange[0] & (1 << GreekCsbBit)) {
writingSystems.setSupported(QFontDatabase::Greek);
hasScript = true;
//qDebug("font %s supports Greek", familyName.latin1());
}
if (codePageRange[0] & (1 << HebrewCsbBit)) {
writingSystems.setSupported(QFontDatabase::Hebrew);
hasScript = true;
//qDebug("font %s supports Hebrew", familyName.latin1());
}
if (codePageRange[0] & (1 << ArabicCsbBit)) {
writingSystems.setSupported(QFontDatabase::Arabic);
hasScript = true;
//qDebug("font %s supports Arabic", familyName.latin1());
}
if (codePageRange[0] & (1 << VietnameseCsbBit)) {
writingSystems.setSupported(QFontDatabase::Vietnamese);
hasScript = true;
//qDebug("font %s supports Vietnamese", familyName.latin1());
}
if (codePageRange[0] & (1 << SimplifiedChineseCsbBit)) {
writingSystems.setSupported(QFontDatabase::SimplifiedChinese);
hasScript = true;
@ -507,7 +547,7 @@ QSupportedWritingSystems QPlatformFontDatabase::writingSystemsFromTrueTypeBits(q
hasScript = true;
//qDebug("font %s supports Japanese", familyName.latin1());
}
if (codePageRange[0] & (1 << KoreanCsbBit)) {
if (codePageRange[0] & ((1 << KoreanCsbBit) | (1 << KoreanJohabCsbBit))) {
writingSystems.setSupported(QFontDatabase::Korean);
hasScript = true;
//qDebug("font %s supports Korean", familyName.latin1());

3
src/plugins/platforms/windows/qwindowsfontdatabase.cpp
View File

@ -627,7 +627,6 @@ static inline QFontDatabase::WritingSystem writingSystemFromCharSet(uchar charSe
case EASTEUROPE_CHARSET:
case BALTIC_CHARSET:
case TURKISH_CHARSET:
case OEM_CHARSET:
return QFontDatabase::Latin;
case GREEK_CHARSET:
return QFontDatabase::Greek;
@ -652,8 +651,6 @@ static inline QFontDatabase::WritingSystem writingSystemFromCharSet(uchar charSe
return QFontDatabase::Vietnamese;
case SYMBOL_CHARSET:
return QFontDatabase::Symbol;
// ### case MAC_CHARSET:
// ### case DEFAULT_CHARSET:
default:
break;
}

3
src/plugins/platforms/windows/qwindowsfontdatabase_ft.cpp
View File

@ -81,7 +81,6 @@ static inline QFontDatabase::WritingSystem writingSystemFromCharSet(uchar charSe
case EASTEUROPE_CHARSET:
case BALTIC_CHARSET:
case TURKISH_CHARSET:
case OEM_CHARSET:
return QFontDatabase::Latin;
case GREEK_CHARSET:
return QFontDatabase::Greek;
@ -106,8 +105,6 @@ static inline QFontDatabase::WritingSystem writingSystemFromCharSet(uchar charSe
return QFontDatabase::Vietnamese;
case SYMBOL_CHARSET:
return QFontDatabase::Symbol;
// ### case MAC_CHARSET:
// ### case DEFAULT_CHARSET:
default:
break;
}