// Copyright (C) 2016 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 QRAWFONTPRIVATE_P_H

#define QRAWFONTPRIVATE_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 <QtGui/private/qtguiglobal_p.h>

#include "qrawfont.h"

#include "qfontengine_p.h"

#include <QtCore/qthread.h>

#include <QtCore/qthreadstorage.h>

#if !defined(QT_NO_RAWFONT)

QT_BEGIN_NAMESPACE

namespace { class CustomFontFileLoader; }

class Q_GUI_EXPORT QRawFontPrivate

{

public:

    QRawFontPrivate()

        : fontEngine(nullptr)

        , hintingPreference(QFont::PreferDefaultHinting)

        , thread(nullptr)

    {}

    QRawFontPrivate(const QRawFontPrivate &other)

        : fontEngine(other.fontEngine)

        , hintingPreference(other.hintingPreference)

        , thread(other.thread)

    {

#ifndef QT_NO_DEBUG

        Q_ASSERT(fontEngine == nullptr || thread == QThread::currentThread());

#endif

        if (fontEngine != nullptr)

            fontEngine->ref.ref();

    }

    ~QRawFontPrivate()

    {

#ifndef QT_NO_DEBUG

        Q_ASSERT(ref.loadRelaxed() == 0);

#endif

        cleanUp();

    }

    inline void cleanUp()

    {

        setFontEngine(nullptr);

        hintingPreference = QFont::PreferDefaultHinting;

    }

    inline bool isValid() const

    {

#ifndef QT_NO_DEBUG

        Q_ASSERT(fontEngine == nullptr || thread == QThread::currentThread());

#endif

        return fontEngine != nullptr;

    }

    inline void setFontEngine(QFontEngine *engine)

    {

#ifndef QT_NO_DEBUG

        Q_ASSERT(fontEngine == nullptr || thread == QThread::currentThread());

#endif

        if (fontEngine == engine)

            return;

        if (fontEngine != nullptr) {

            if (!fontEngine->ref.deref())

                delete fontEngine;

#ifndef QT_NO_DEBUG

            thread = nullptr;

#endif

        }

        fontEngine = engine;

        if (fontEngine != nullptr) {

            fontEngine->ref.ref();

#ifndef QT_NO_DEBUG

            thread = QThread::currentThread();

            Q_ASSERT(thread);

#endif

        }

    }

    void loadFromData(const QByteArray &fontData,

                              qreal pixelSize,

                              QFont::HintingPreference hintingPreference);

    static QRawFontPrivate *get(const QRawFont &font) { return font.d.data(); }

    QFontEngine *fontEngine;

    QFont::HintingPreference hintingPreference;

    QAtomicInt ref;

private:

    QThread *thread;

};

QT_END_NAMESPACE

#endif // QT_NO_RAWFONT

#endif // QRAWFONTPRIVATE_P_H