qicohandler.h

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// 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 QTICOHANDLER_H
#define QTICOHANDLER_H
 
#include <QtGui/QImageIOHandler>
 
QT_BEGIN_NAMESPACE
 
class ICOReader;
class QtIcoHandler: public QImageIOHandler
{
public:
    QtIcoHandler(QIODevice *device);
    virtual ~QtIcoHandler();
 
    bool canRead() const override;
    bool read(QImage *image) override;
    bool write(const QImage &image) override;
 
    int imageCount() const override;
    bool jumpToImage(int imageNumber) override;
    bool jumpToNextImage() override;
 
    static bool canRead(QIODevice *device);
 
    bool supportsOption(ImageOption option) const override;
    QVariant option(ImageOption option) const override;
 
private:
    int m_currentIconIndex;
    ICOReader *m_pICOReader;
    mutable bool knownCanRead = false;
};
 
QT_END_NAMESPACE
 
#endif /* QTICOHANDLER_H */