abstractmetadataloader.h

#ifndef AMETADATALOADER_H
#define AMETADATALOADER_H

#include "metadatavalue.h"

//start
namespace Abstract {
class METADATAEXPORT MetaDataLoader : public QObject {
    Q_OBJECT
public:
    
    explicit MetaDataLoader(QObject *parent = 0) 
        : QObject(parent) {}
    
    static MetaDataLoader* instance();
    virtual MetaDataLoader* clone(QObject* parent=0) = 0;
    virtual ~MetaDataLoader();
    virtual const QStringList& supportedExtensions() = 0;
    virtual void get(QString path) = 0;
    virtual void get(QStringList path) = 0;
    virtual bool isRunning() const = 0;
public slots:
    virtual void cancel() = 0;
    
signals:
    void fetched(const MetaDataValue& mdv);
    void progressValueChanged(int);
    void progressRangeChanged(int, int);
    void finished();

};
}

#endif // AMETADATALOADER_H