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+/****************************************************************************
+**
+** Copyright (C) 2020 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#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 <QtCore/QSharedPointer>
+#include <QtCore/QLoggingCategory>
+#include <QtCore/qt_windows.h>
+
+#if !defined(QT_NO_DIRECTWRITE)
+ struct IDWriteFactory;
+ struct IDWriteGdiInterop;
+ struct IDWriteFontFace;
+#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 QWindowsFontDatabaseBase : public QPlatformFontDatabase
+{
+public:
+ QWindowsFontDatabaseBase();
+ ~QWindowsFontDatabaseBase() override;
+
+ QFontEngine *fontEngine(const QByteArray &fontData, qreal pixelSize, QFont::HintingPreference hintingPreference) override;
+
+ static int defaultVerticalDPI();
+ static QSharedPointer<QWindowsFontEngineData> data();
+#if !defined(QT_NO_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;
+ };
+
+protected:
+
+#if !defined(QT_NO_DIRECTWRITE)
+ IDWriteFontFace *createDirectWriteFace(const QByteArray &fontData) const;
+#endif
+
+private:
+ static bool init(QSharedPointer<QWindowsFontEngineData> data);
+};
+
+QT_END_NAMESPACE
+
+#endif // QWINDOWSFONTDATABASEBASE_P_H