Get rid of qt_determine_writing_systems_from_truetype_bits()

Move this code to QPlatformFontDatabase and get rid of all dups of it.

Change-Id: Idea6c84819039bf3b345b1305305951ade8d1ac4
Reviewed-by: Lars Knoll <lars.knoll@digia.com>

2 files changed, 1 insertions, 126 deletions

diff --git a/src/platformsupport/fontdatabases/basic/qbasicfontdatabase.cpp b/src/platformsupport/fontdatabases/basic/qbasicfontdatabase.cpp
index f17eff4dd7..49440c8566 100644
--- a/src/platformsupport/fontdatabases/basic/qbasicfontdatabase.cpp
+++ b/src/platformsupport/fontdatabases/basic/qbasicfontdatabase.cpp
@@ -60,82 +60,6 @@
 
 QT_BEGIN_NAMESPACE
 
-#define SimplifiedChineseCsbBit 18
-#define TraditionalChineseCsbBit 20
-#define JapaneseCsbBit 17
-#define KoreanCsbBit 21
-
-static int requiredUnicodeBits[QFontDatabase::WritingSystemsCount][2] = {
-        // Any,
-    { 127, 127 },
-        // Latin,
-    { 0, 127 },
-        // Greek,
-    { 7, 127 },
-        // Cyrillic,
-    { 9, 127 },
-        // Armenian,
-    { 10, 127 },
-        // Hebrew,
-    { 11, 127 },
-        // Arabic,
-    { 13, 127 },
-        // Syriac,
-    { 71, 127 },
-    //Thaana,
-    { 72, 127 },
-    //Devanagari,
-    { 15, 127 },
-    //Bengali,
-    { 16, 127 },
-    //Gurmukhi,
-    { 17, 127 },
-    //Gujarati,
-    { 18, 127 },
-    //Oriya,
-    { 19, 127 },
-    //Tamil,
-    { 20, 127 },
-    //Telugu,
-    { 21, 127 },
-    //Kannada,
-    { 22, 127 },
-    //Malayalam,
-    { 23, 127 },
-    //Sinhala,
-    { 73, 127 },
-    //Thai,
-    { 24, 127 },
-    //Lao,
-    { 25, 127 },
-    //Tibetan,
-    { 70, 127 },
-    //Myanmar,
-    { 74, 127 },
-        // Georgian,
-    { 26, 127 },
-        // Khmer,
-    { 80, 127 },
-        // SimplifiedChinese,
-    { 126, 127 },
-        // TraditionalChinese,
-    { 126, 127 },
-        // Japanese,
-    { 126, 127 },
-        // Korean,
-    { 56, 127 },
-        // Vietnamese,
-    { 0, 127 }, // same as latin1
-        // Other,
-    { 126, 127 },
-        // Ogham,
-    { 78, 127 },
-        // Runic,
-    { 79, 127 },
-        // Nko,
-    { 14, 127 },
-};
-
 typedef struct {
     quint16 majorVersion;
     quint16 minorVersion;
@@ -167,54 +91,6 @@ typedef struct {
     quint16 stringOffset;
 } NAME_RECORD;
 
-QSupportedWritingSystems QBasicFontDatabase::determineWritingSystemsFromTrueTypeBits(quint32 unicodeRange[4], quint32 codePageRange[2])
-{
-    QSupportedWritingSystems writingSystems;
-    bool hasScript = false;
-
-    int i;
-    for(i = 0; i < QFontDatabase::WritingSystemsCount; i++) {
-        int bit = requiredUnicodeBits[i][0];
-        int index = bit/32;
-        int flag =  1 << (bit&31);
-        if (bit != 126 && unicodeRange[index] & flag) {
-            bit = requiredUnicodeBits[i][1];
-            index = bit/32;
-
-            flag =  1 << (bit&31);
-            if (bit == 127 || unicodeRange[index] & flag) {
-                writingSystems.setSupported(QFontDatabase::WritingSystem(i));
-                hasScript = true;
-                // qDebug("font %s: index=%d, flag=%8x supports script %d", familyName.latin1(), index, flag, i);
-            }
-        }
-    }
-    if(codePageRange[0] & (1 << SimplifiedChineseCsbBit)) {
-        writingSystems.setSupported(QFontDatabase::SimplifiedChinese);
-        hasScript = true;
-        //qDebug("font %s supports Simplified Chinese", familyName.latin1());
-    }
-    if(codePageRange[0] & (1 << TraditionalChineseCsbBit)) {
-        writingSystems.setSupported(QFontDatabase::TraditionalChinese);
-        hasScript = true;
-        //qDebug("font %s supports Traditional Chinese", familyName.latin1());
-    }
-    if(codePageRange[0] & (1 << JapaneseCsbBit)) {
-        writingSystems.setSupported(QFontDatabase::Japanese);
-        hasScript = true;
-        //qDebug("font %s supports Japanese", familyName.latin1());
-    }
-    if(codePageRange[0] & (1 << KoreanCsbBit)) {
-        writingSystems.setSupported(QFontDatabase::Korean);
-        hasScript = true;
-        //qDebug("font %s supports Korean", familyName.latin1());
-    }
-    if (!hasScript)
-        writingSystems.setSupported(QFontDatabase::Symbol);
-
-    return writingSystems;
-}
-
 static inline bool scriptRequiresOpenType(int script)
 {
     return ((script >= QChar::Script_Syriac && script <= QChar::Script_Sinhala)
@@ -414,7 +290,7 @@ QStringList QBasicFontDatabase::addTTFile(const QByteArray &fontData, const QByt
                 quint32(os2->ulCodePageRange2)
             };
 
-            writingSystems = determineWritingSystemsFromTrueTypeBits(unicodeRange, codePageRange);
+            writingSystems = QPlatformFontDatabase::writingSystemsFromTrueTypeBits(unicodeRange, codePageRange);
 
             if (os2->usWeightClass == 0)
                 ;
diff --git a/src/platformsupport/fontdatabases/basic/qbasicfontdatabase_p.h b/src/platformsupport/fontdatabases/basic/qbasicfontdatabase_p.h
index 8bb574f335..4d6fd2ceeb 100644
--- a/src/platformsupport/fontdatabases/basic/qbasicfontdatabase_p.h
+++ b/src/platformsupport/fontdatabases/basic/qbasicfontdatabase_p.h
@@ -65,7 +65,6 @@ public:
     void releaseHandle(void *handle);
 
     static QStringList addTTFile(const QByteArray &fontData, const QByteArray &file);
-    static QSupportedWritingSystems determineWritingSystemsFromTrueTypeBits(quint32 unicodeRange[4], quint32 codePageRange[2]);
     static QString fontNameFromTTFile(const QString &filename);
 };