image_decoder.h

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#ifndef IMAGE_DECODER_H
#define IMAGE_DECODER_H
 
#include <QObject>

class ImageDecoder final : public QObject {
    Q_OBJECT
 
public:
    explicit ImageDecoder(const QByteArray &image_data, QObject *parent = nullptr)
        : QObject(parent), image_data_(image_data) {
    }

    ~ImageDecoder() override {
    }

    static void ReleaseResources() {
    }

    QImage Decode();
 
signals:
    void imageReady(const QImage &image);

    void error(const QString &message);

    void imageInfo(int width, int height, bool has_alpha);
 
private:
    QByteArray image_data_;
};
 
#endif // IMAGE_DECODER_H