// 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

// Qt-Security score:significant reason:default

#ifndef QICON_P_H

#define QICON_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 <QtCore/qsize.h>

#include <QtCore/qlist.h>

#include <QtGui/qpixmap.h>

#include <QtGui/qicon.h>

#include <QtGui/qiconengine.h>

#ifndef QT_NO_ICON

QT_BEGIN_NAMESPACE

class QIconPrivate

{

public:

    explicit QIconPrivate(QIconEngine *e);

    ~QIconPrivate() {

        delete engine;

    }

    static QIconPrivate *get(QIcon *icon) { return icon->d; }

    static const QIconPrivate *get(const QIcon *icon) { return icon->d; }

    enum IconEngineHook { PlatformIconHook = 1000 };

    static qreal pixmapDevicePixelRatio(qreal displayDevicePixelRatio, const QSize &requestedSize, const QSize &actualSize);

    QIconEngine *engine;

    QAtomicInt ref;

    int serialNum;

    int detach_no;

    bool is_mask;

    static void clearIconCache();

};

struct QPixmapIconEngineEntry

{

    QPixmapIconEngineEntry(const QPixmap &pm, QIcon::Mode m, QIcon::State s)

        : pixmap(pm), size(pm.size()), mode(m), state(s) {}

    QPixmapIconEngineEntry(const QString &file, const QSize &sz, QIcon::Mode m, QIcon::State s)

        : fileName(file), size(sz), mode(m), state(s) {}

    QPixmapIconEngineEntry(const QString &file, const QImage &image, QIcon::Mode m, QIcon::State s);

    QPixmap pixmap;

    QString fileName;

    QSize size;

    QIcon::Mode mode = QIcon::Normal;

    QIcon::State state = QIcon::Off;

};

Q_DECLARE_TYPEINFO(QPixmapIconEngineEntry, Q_RELOCATABLE_TYPE);

inline QPixmapIconEngineEntry::QPixmapIconEngineEntry(const QString &file, const QImage &image, QIcon::Mode m, QIcon::State s)

    : fileName(file), size(image.size()), mode(m), state(s)

{

    pixmap.convertFromImage(image);

}

class Q_GUI_EXPORT QPixmapIconEngine : public QIconEngine {

public:

    QPixmapIconEngine();

    QPixmapIconEngine(const QPixmapIconEngine &);

    ~QPixmapIconEngine();

    void paint(QPainter *painter, const QRect &rect, QIcon::Mode mode, QIcon::State state) override;

    QPixmap pixmap(const QSize &size, QIcon::Mode mode, QIcon::State state) override;

    QPixmap scaledPixmap(const QSize &size, QIcon::Mode mode, QIcon::State state, qreal scale) override;

    QPixmapIconEngineEntry *bestMatch(const QSize &size, qreal scale, QIcon::Mode mode, QIcon::State state);

    QSize actualSize(const QSize &size, QIcon::Mode mode, QIcon::State state) override;

    QList<QSize> availableSizes(QIcon::Mode mode, QIcon::State state) override;

    void addPixmap(const QPixmap &pixmap, QIcon::Mode mode, QIcon::State state) override;

    void addFile(const QString &fileName, const QSize &size, QIcon::Mode mode, QIcon::State state) override;

    bool isNull() override;

    QString key() const override;

    QIconEngine *clone() const override;

    bool read(QDataStream &in) override;

    bool write(QDataStream &out) const override;

    static inline QSize adjustSize(const QSize &expectedSize, QSize size)

    {

        if (!size.isNull() && (size.width() > expectedSize.width() || size.height() > expectedSize.height()))

            size.scale(expectedSize, Qt::KeepAspectRatio);

        return size;

    }

private:

    void removePixmapEntry(QPixmapIconEngineEntry *pe)

    {

        const auto pred = [pe](const auto &entry) { return pe == &entry; };

        const auto it = std::find_if(pixmaps.begin(), pixmaps.end(), pred);

        if (it != pixmaps.end())

            pixmaps.erase(it);

    }

    QPixmapIconEngineEntry *tryMatch(const QSize &size, qreal scale, QIcon::Mode mode, QIcon::State state);

    QList<QPixmapIconEngineEntry> pixmaps;

    friend Q_GUI_EXPORT QDataStream &operator<<(QDataStream &s, const QIcon &icon);

    friend class QIconThemeEngine;

};

QT_END_NAMESPACE

#endif //QT_NO_ICON

#endif // QICON_P_H