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| ** |
| ** This file is part of the plugins of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** Commercial License Usage |
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| ** Public license version 3 or any later version approved by the KDE Free |
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| ****************************************************************************/ |
| |
| #ifndef QWINDOWSFONTDATABASE_H |
| #define QWINDOWSFONTDATABASE_H |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists purely as an |
| // implementation detail. This header file may change from version to |
| // version without notice, or even be removed. |
| // |
| // We mean it. |
| // |
| |
| #include <qpa/qplatformfontdatabase.h> |
| #include <QtCore/QSharedPointer> |
| #include <QtCore/QLoggingCategory> |
| #include <QtCore/qt_windows.h> |
| |
| #if !defined(QT_NO_DIRECTWRITE) |
| struct IDWriteFactory; |
| struct IDWriteGdiInterop; |
| #endif |
| |
| QT_BEGIN_NAMESPACE |
| |
| Q_DECLARE_LOGGING_CATEGORY(lcQpaFonts) |
| |
| class QWindowsFontEngineData |
| { |
| Q_DISABLE_COPY_MOVE(QWindowsFontEngineData) |
| public: |
| QWindowsFontEngineData(); |
| ~QWindowsFontEngineData(); |
| |
| uint pow_gamma[256]; |
| |
| bool clearTypeEnabled = false; |
| qreal fontSmoothingGamma; |
| HDC hdc = 0; |
| #if !defined(QT_NO_DIRECTWRITE) |
| IDWriteFactory *directWriteFactory = nullptr; |
| IDWriteGdiInterop *directWriteGdiInterop = nullptr; |
| #endif |
| }; |
| |
| class QWindowsFontDatabase : public QPlatformFontDatabase |
| { |
| Q_DISABLE_COPY_MOVE(QWindowsFontDatabase) |
| public: |
| enum FontOptions { |
| // Relevant bits from QWindowsIntegration::Options |
| DontUseDirectWriteFonts = 0x40, |
| DontUseColorFonts = 0x80 |
| }; |
| |
| QWindowsFontDatabase(); |
| ~QWindowsFontDatabase() override; |
| |
| void ensureFamilyPopulated(const QString &familyName); |
| |
| void populateFontDatabase() override; |
| void populateFamily(const QString &familyName) override; |
| QFontEngine *fontEngine(const QFontDef &fontDef, void *handle) override; |
| QFontEngine *fontEngine(const QByteArray &fontData, qreal pixelSize, QFont::HintingPreference hintingPreference) override; |
| QStringList fallbacksForFamily(const QString &family, QFont::Style style, QFont::StyleHint styleHint, QChar::Script script) const override; |
| QStringList addApplicationFont(const QByteArray &fontData, const QString &fileName) override; |
| void releaseHandle(void *handle) override; |
| QString fontDir() const override; |
| |
| QFont defaultFont() const override { return systemDefaultFont(); } |
| bool fontsAlwaysScalable() const override; |
| void derefUniqueFont(const QString &uniqueFont); |
| void refUniqueFont(const QString &uniqueFont); |
| bool isPrivateFontFamily(const QString &family) const override; |
| |
| static QFont systemDefaultFont(); |
| |
| static QFontEngine *createEngine(const QFontDef &request, const QString &faceName, |
| int dpi, |
| const QSharedPointer<QWindowsFontEngineData> &data); |
| |
| static HFONT systemFont(); |
| static QFont LOGFONT_to_QFont(const LOGFONT& lf, int verticalDPI = 0); |
| |
| static qreal fontSmoothingGamma(); |
| static LOGFONT fontDefToLOGFONT(const QFontDef &fontDef, const QString &faceName); |
| |
| static QStringList extraTryFontsForFamily(const QString &family); |
| static QString familyForStyleHint(QFont::StyleHint styleHint); |
| |
| static int defaultVerticalDPI(); |
| static void setDefaultVerticalDPI(int d); |
| |
| static void setFontOptions(unsigned options); |
| static unsigned fontOptions(); |
| |
| private: |
| void removeApplicationFonts(); |
| void addDefaultEUDCFont(); |
| |
| struct WinApplicationFont { |
| HANDLE handle; |
| QString fileName; |
| }; |
| |
| QList<WinApplicationFont> m_applicationFonts; |
| |
| struct UniqueFontData { |
| HANDLE handle; |
| QAtomicInt refCount; |
| }; |
| |
| QMap<QString, UniqueFontData> m_uniqueFontData; |
| |
| static unsigned m_fontOptions; |
| QStringList m_eudcFonts; |
| }; |
| |
| #ifndef QT_NO_DEBUG_STREAM |
| QDebug operator<<(QDebug, const QFontDef &def); |
| #endif |
| |
| inline quint16 qt_getUShort(const unsigned char *p) |
| { |
| quint16 val; |
| val = *p++ << 8; |
| val |= *p; |
| |
| return val; |
| } |
| |
| struct QFontNames |
| { |
| QString name; // e.g. "DejaVu Sans Condensed" |
| QString style; // e.g. "Italic" |
| QString preferredName; // e.g. "DejaVu Sans" |
| QString preferredStyle; // e.g. "Condensed Italic" |
| }; |
| |
| struct QFontValues |
| { |
| quint16 weight = 0; |
| bool isItalic = false; |
| bool isOverstruck = false; |
| bool isUnderlined = false; |
| }; |
| |
| bool qt_localizedName(const QString &name); |
| QString qt_getEnglishName(const QString &familyName, bool includeStyle = false); |
| QFontNames qt_getCanonicalFontNames(const LOGFONT &lf); |
| |
| QT_END_NAMESPACE |
| |
| #endif // QWINDOWSFONTDATABASE_H |