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/*************************************************************************
RecoverySource.h - base class for recovered audio file data
-------------------
begin : Sun May 12 2002
copyright : (C) 2002 by Thomas Eschenbacher
email : Thomas.Eschenbacher@gmx.de
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#ifndef RECOVERY_SOURCE_H
#define RECOVERY_SOURCE_H
#include "config.h"
#include <qglobal.h>
namespace Kwave
{
class RecoverySource
{
public:
/**
* Constructor
* @param offset position within the recovered file
* @param length number of bytes of the recovered area
*/
RecoverySource(quint64 offset, quint64 length);
/** Destructor */
virtual ~RecoverySource() {}
/** Returns the start offset in the recovered file */
virtual quint64 offset() const;
/** Returns the number of bytes of the recovered range */
virtual quint64 length() const;
/** Returns the end offset in the recovered file */
virtual quint64 end() const;
/**
* Reads bytes from the recovered file into a buffer
* @param offset position within the recovered file
* @param data pointer to the buffer to be filled
* @param bytes number of bytes to read
* @return number of successfully read bytes
*/
virtual qint64 read(quint64 offset, char *data,
unsigned int bytes) = 0;
private:
/** offset in the file */
quint64 m_offset;
/** length in bytes */
quint64 m_length;
};
}
#endif /* RECOVERY_SOURCE_H */
//***************************************************************************
//***************************************************************************
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