// Copyright (C) 2023 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

// Qt-Security score:significant reason:default

#ifndef QPALETTE_P_H

#define QPALETTE_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 "qpalette.h"

#include <QtCore/qatomic.h>

QT_BEGIN_NAMESPACE

class Q_GUI_EXPORT QPalettePrivate

{

public:

    class Data : public QSharedData {

    public:

        // Every instance of Data has to have a unique serial number, even

        // if it gets created by copying another - we wouldn't create a copy

        // in the first place if the serial number should be the same!

        Data(const Data &other)

            : QSharedData(other)

        {

            for (int grp = 0; grp < int(QPalette::NColorGroups); grp++) {

                for (int role = 0; role < int(QPalette::NColorRoles); role++)

                    br[grp][role] = other.br[grp][role];

            }

        }

        Data() = default;

        QBrush br[QPalette::NColorGroups][QPalette::NColorRoles];

        const int ser_no = qt_palette_count++;

    };

    QPalettePrivate(const QExplicitlySharedDataPointer<Data> &data)

        : ref(1), data(data)

    { }

    QPalettePrivate()

        : QPalettePrivate(QExplicitlySharedDataPointer<Data>(new Data))

    { }

    static constexpr QPalette::ResolveMask colorRoleOffset(QPalette::ColorGroup colorGroup)

    {

        // Exclude NoRole; that bit is used for Accent

        return (qToUnderlying(QPalette::NColorRoles) - 1) * qToUnderlying(colorGroup);

    }

    static constexpr QPalette::ResolveMask bitPosition(QPalette::ColorGroup colorGroup,

                                                       QPalette::ColorRole colorRole)

    {

        // Map Accent into NoRole for resolving purposes

        if (colorRole == QPalette::Accent)

            colorRole = QPalette::NoRole;

        return colorRole + colorRoleOffset(colorGroup);

    }

    QAtomicInt ref;

    QPalette::ResolveMask resolveMask = {0};

    static QAtomicInt qt_palette_count;

    static QAtomicInt qt_palette_private_count;

    int detach_no = ++qt_palette_private_count;

    QExplicitlySharedDataPointer<Data> data;

};

QT_END_NAMESPACE

#endif // QPALETTE_P_H