qbasicunixfontdatabase.cpp File Reference

#include "qbasicunixfontdatabase.h"
#include <QtGui/private/qapplication_p.h>
#include <QtGui/QPlatformScreen>
#include <QtCore/QFile>
#include <QtCore/QLibraryInfo>
#include <QtCore/QDir>
#include <QtGui/private/qfontengine_ft_p.h>
#include <QtGui/private/qfontengine_p.h>
#include <ft2build.h>
#include <FT_TRUETYPE_TABLES_H>

Go to the source code of this file.

Macros
#define	JapaneseCsbBit   17
#define	KoreanCsbBit   21
#define	SimplifiedChineseCsbBit   18
#define	TraditionalChineseCsbBit   20

Functions
static QSupportedWritingSystems	determineWritingSystemsFromTrueTypeBits (quint32 unicodeRange[4], quint32 codePageRange[2])
static bool	scriptRequiresOpenType (int script)

Variables
static int	requiredUnicodeBits [QFontDatabase::WritingSystemsCount][2]

Macro Definition Documentation

JapaneseCsbBit

#define JapaneseCsbBit   17

Definition at line 60 of file qbasicunixfontdatabase.cpp.

Referenced by determineWritingSystemsFromTrueTypeBits().

KoreanCsbBit

#define KoreanCsbBit   21

Definition at line 61 of file qbasicunixfontdatabase.cpp.

Referenced by determineWritingSystemsFromTrueTypeBits().

SimplifiedChineseCsbBit

#define SimplifiedChineseCsbBit   18

Definition at line 58 of file qbasicunixfontdatabase.cpp.

Referenced by determineWritingSystemsFromTrueTypeBits().

TraditionalChineseCsbBit

#define TraditionalChineseCsbBit   20

Definition at line 59 of file qbasicunixfontdatabase.cpp.

Referenced by determineWritingSystemsFromTrueTypeBits().

Function Documentation

determineWritingSystemsFromTrueTypeBits()

static QSupportedWritingSystems determineWritingSystemsFromTrueTypeBits ( quint32  unicodeRange[4], quint32  codePageRange[2]  )

static

Definition at line 134 of file qbasicunixfontdatabase.cpp.

Referenced by QBasicUnixFontDatabase::addTTFile().

{
    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;
}

scriptRequiresOpenType()

static bool scriptRequiresOpenType ( int  script )

inlinestatic

Definition at line 182 of file qbasicunixfontdatabase.cpp.

Referenced by QBasicUnixFontDatabase::fontEngine().

{
    return ((script >= QUnicodeTables::Syriac && script <= QUnicodeTables::Sinhala)
            || script == QUnicodeTables::Khmer || script == QUnicodeTables::Nko);
}

Variable Documentation

requiredUnicodeBits

int requiredUnicodeBits[QFontDatabase::WritingSystemsCount][2]

static

Definition at line 63 of file qbasicunixfontdatabase.cpp.

Referenced by determineWritingSystemsFromTrueTypeBits().