mirror of
https://github.com/clementine-player/Clementine
synced 2024-12-16 11:19:18 +01:00
86 lines
2.1 KiB
C
86 lines
2.1 KiB
C
|
/*
|
||
|
|
Copyright (c) 2005-2009 by Jakob Schroeter <js@camaya.net>
|
||
|
|
This file is part of the gloox library. http://camaya.net/gloox
|
||
|
|
|
||
|
|
This software is distributed under a license. The full license
|
||
|
|
agreement can be found in the file LICENSE in this distribution.
|
||
|
|
This software may not be copied, modified, sold or distributed
|
||
|
|
other than expressed in the named license agreement.
|
||
|
|
|
||
|
|
This software is distributed without any warranty.
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
#ifndef COMPRESSIONBASE_H__
|
||
|
|
#define COMPRESSIONBASE_H__
|
||
|
|
|
||
|
|
#include "gloox.h"
|
||
|
|
#include "compressiondatahandler.h"
|
||
|
|
|
||
|
|
#include <string>
|
||
|
|
|
||
|
|
namespace gloox
|
||
|
|
{
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @brief This is an abstract base class for stream compression implementations.
|
||
|
|
*
|
||
|
|
* You should not need to use this class directly.
|
||
|
|
*
|
||
|
|
* @author Jakob Schroeter <js@camaya.net>
|
||
|
|
* @since 0.9
|
||
|
|
*/
|
||
|
|
class GLOOX_API CompressionBase
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
/**
|
||
|
|
* Contructor.
|
||
|
|
* @param cdh A CompressionDataHandler-derived object that will be notified
|
||
|
|
* about finished de/compression.
|
||
|
|
*/
|
||
|
|
CompressionBase( CompressionDataHandler* cdh ) : m_handler( cdh ), m_valid( false ) {}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Virtual Destructor.
|
||
|
|
*/
|
||
|
|
virtual ~CompressionBase() {}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* This function initializes the compression module.
|
||
|
|
* it is mandatory to be called.
|
||
|
|
* @return @b True if the module was initialized successfully, false otherwise.
|
||
|
|
*/
|
||
|
|
virtual bool init() = 0;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Compresses the given chunk of data.
|
||
|
|
* @param data The original (uncompressed) data.
|
||
|
|
*/
|
||
|
|
virtual void compress( const std::string& data ) = 0;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Decompresses the given chunk of data.
|
||
|
|
* @param data The compressed data.
|
||
|
|
*/
|
||
|
|
virtual void decompress( const std::string& data ) = 0;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Performs internal cleanup.
|
||
|
|
* @since 1.0
|
||
|
|
*/
|
||
|
|
virtual void cleanup() = 0;
|
||
|
|
|
||
|
|
protected:
|
||
|
|
/** A handler for compressed/uncompressed data. */
|
||
|
|
CompressionDataHandler* m_handler;
|
||
|
|
|
||
|
|
/** Whether the compression module can be used. */
|
||
|
|
bool m_valid;
|
||
|
|
|
||
|
|
};
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif // COMPRESSIONBASE_H__
|