1 files changed, 115 insertions, 0 deletions
diff --git a/src/gui/text/windows/qwindowsfontdatabasebase_p.h b/src/gui/text/windows/qwindowsfontdatabasebase_p.h
new file mode 100644
index 0000000000..55a3363551
--- /dev/null
+++ b/src/gui/text/windows/qwindowsfontdatabasebase_p.h
@@ -0,0 +1,115 @@
+// Copyright (C) 2020 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#ifndef QWINDOWSFONTDATABASEBASE_P_H
+#define QWINDOWSFONTDATABASEBASE_P_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 <QtGui/private/qtgui-config_p.h>
+#include <QtCore/QSharedPointer>
+#include <QtCore/QLoggingCategory>
+#include <QtCore/qt_windows.h>
+
+#if QT_CONFIG(directwrite)
+    struct IDWriteFactory;
+    struct IDWriteGdiInterop;
+    struct IDWriteFontFace;
+#endif
+
+QT_BEGIN_NAMESPACE
+
+#if QT_CONFIG(directwrite)
+    class QCustomFontFileLoader;
+#endif
+
+class QWindowsFontEngineData
+{
+    Q_DISABLE_COPY_MOVE(QWindowsFontEngineData)
+public:
+    QWindowsFontEngineData();
+    ~QWindowsFontEngineData();
+
+    uint pow_gamma[256];
+
+    bool clearTypeEnabled = false;
+    qreal fontSmoothingGamma;
+    HDC hdc = 0;
+#if QT_CONFIG(directwrite)
+    IDWriteFactory *directWriteFactory = nullptr;
+    IDWriteGdiInterop *directWriteGdiInterop = nullptr;
+#endif
+};
+
+class Q_GUI_EXPORT QWindowsFontDatabaseBase : public QPlatformFontDatabase
+{
+public:
+    QWindowsFontDatabaseBase();
+    ~QWindowsFontDatabaseBase() override;
+
+    QFontEngine *fontEngine(const QFontDef &fontDef, void *handle) override;
+    QFontEngine *fontEngine(const QByteArray &fontData, qreal pixelSize, QFont::HintingPreference hintingPreference) override;
+
+    void invalidate() override;
+
+    static int defaultVerticalDPI();
+
+    static QSharedPointer<QWindowsFontEngineData> data();
+#if QT_CONFIG(directwrite)
+    static void createDirectWriteFactory(IDWriteFactory **factory);
+#endif
+    static QFont systemDefaultFont();
+    static HFONT systemFont();
+    static LOGFONT fontDefToLOGFONT(const QFontDef &fontDef, const QString &faceName);
+    static QFont LOGFONT_to_QFont(const LOGFONT& lf, int verticalDPI = 0);
+
+    static QString familyForStyleHint(QFont::StyleHint styleHint);
+    static QStringList extraTryFontsForFamily(const QString &family);
+
+    class FontTable{};
+    class EmbeddedFont
+    {
+    public:
+        EmbeddedFont(const QByteArray &fontData) : m_fontData(fontData) {}
+
+        QString changeFamilyName(const QString &newFamilyName);
+        QByteArray data() const { return m_fontData; }
+        void updateFromOS2Table(QFontEngine *fontEngine);
+        FontTable *tableDirectoryEntry(const QByteArray &tagName);
+        QString familyName(FontTable *nameTableDirectory = nullptr);
+
+    private:
+        QByteArray m_fontData;
+    };
+
+    QFontDef sanitizeRequest(QFontDef request) const;
+
+protected:
+
+#if QT_CONFIG(directwrite)
+    QList<IDWriteFontFace *> createDirectWriteFaces(const QByteArray &fontData,
+                                                    bool queryVariations = true) const;
+    IDWriteFontFace *createDirectWriteFace(const QByteArray &fontData);
+#endif
+
+private:
+    static bool init(QSharedPointer<QWindowsFontEngineData> data);
+
+#if QT_CONFIG(directwrite)
+    mutable std::unique_ptr<QCustomFontFileLoader> m_fontFileLoader;
+#endif
+};
+
+QT_END_NAMESPACE
+
+#endif // QWINDOWSFONTDATABASEBASE_P_H