qx-filestreamreader.h

#ifndef QX_FILESTREAMREADER_H
#define QX_FILESTREAMREADER_H
 
// Shared Lib Support
#include "qx/io/qx_io_export.h"
 
// Qt Includes
#include <QDataStream>
#include <QFile>
 
// Intra-component Includes
#include "qx/io/qx-ioopreport.h"
 
// Extra-component Includes
#include "qx/utility/qx-concepts.h"
 
namespace Qx
{
 
class QX_IO_EXPORT FileStreamReader // Specialized wrapper for QDataStream
{
//-Class Variables------------------------------------------------------------------------------------------------
private:
    static inline const IoOpReport NULL_FILE_REPORT = IoOpReport(IO_OP_READ, IO_ERR_NULL, static_cast<QFile*>(nullptr));
 
//-Instance Variables------------------------------------------------------------------------------------------------
private:
    QFile* mFile;
    QDataStream mStreamReader;
    IoOpReport mStatus;
 
//-Constructor-------------------------------------------------------------------------------------------------------
public:
    FileStreamReader();
    FileStreamReader(const QString& filePath);
 
//-Destructor-------------------------------------------------------------------------------------------------------
public:
    ~FileStreamReader();
 
//-Instance Functions------------------------------------------------------------------------------------------------
private:
    IoOpReport statusFromNative();
    IoOpReport preReadErrorCheck();
    void setFile(const QString& filePath);
    void unsetFile();
 
public:
    // Stock functions
    bool atEnd() const;
    QDataStream::ByteOrder byteOrder() const;
    const QFile* file() const;
    QDataStream::FloatingPointPrecision floatingPointPrecision() const;
    IoOpReport readRawData(QByteArray& data, int len);
    void resetStatus();
    void setByteOrder(QDataStream::ByteOrder bo);
    void setFloatingPointPrecision(QDataStream::FloatingPointPrecision precision);
    IoOpReport skipRawData(int len);
    IoOpReport status() const;
 
    template<typename T>
        requires defines_right_shift_for<QDataStream, T&>
    FileStreamReader& operator>>(T& d)
    {
        IoOpReport check = preReadErrorCheck();
 
        if(!check.isFailure())
        {
            mStreamReader >> d;
            mStatus = statusFromNative();
        }
 
        return *this;
    }
 
    QString filePath() const;
    void setFilePath(const QString& filePath);
 
    // New functions
    bool hasError() const;
    IoOpReport openFile();
    void closeFile();
    bool fileIsOpen() const;
};  
 
}
 
#endif // QX_FILESTREAMREADER_H