/*+
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).+
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* All rights reserved.+
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*+
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* This program is free software: you can redistribute it and/or modify+
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* it under the terms of the GNU Lesser General Public License as published by+
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* the Free Software Foundation, either version 3 of the License, or+
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* (at your option) any later version.+
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*+
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* This program is distributed in the hope that it will be useful,+
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* but WITHOUT ANY WARRANTY; without even the implied warranty of+
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the+
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* GNU Lesser General Public License for more details.+
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* +
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* You should have received a copy of the GNU Lesser General Public License+
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* along with this program.  If not, see <http://www.gnu.org/licenses/>.+
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*/+
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+
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#ifndef FILEFRAGMENT_H_+
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#define FILEFRAGMENT_H_+
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+
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#include <stddef.h>+
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+
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class OutputFile;+
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+
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class FileFragmentData+
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{+
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+
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public:+
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	FileFragmentData() :+
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		iSize(0), iData(0)+
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		{};+
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	FileFragmentData(size_t aSize, char * aData) :+
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		iSize(aSize), iData(aData)+
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		{};+
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	virtual ~FileFragmentData();+
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	inline char* GetData() { return iData; };+
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	inline size_t GetSize() { return iSize; };+
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	inline void SetData(char * newVal) { iData = newVal; };+
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	inline void SetSize(size_t newVal) { iSize = newVal; };+
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+
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private:+
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	size_t iSize;+
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	char* iData;+
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};+
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+
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/**+
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 * Defines the interface for owners of FileFragments+
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 */+
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class FileFragmentOwner+
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{+
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public:+
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	FileFragmentOwner() :+
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		iOffset(0)+
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		{};+
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		+
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	FileFragmentOwner(size_t aOffset) :+
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		iOffset(aOffset)+
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		{};	+
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		+
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	virtual ~FileFragmentOwner();+
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+
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	virtual void GetFileFragmentData(FileFragmentData & aFileFragmentData ) =0;+
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	virtual size_t Size() = 0;+
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	virtual void DeleteFileFragmentData() = 0;+
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	+
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	virtual void AddData(OutputFile & aFile);+
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	virtual size_t GetOffset() { return iOffset; }+
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	virtual void SetOffset(size_t aOffset) { iOffset = aOffset; }+
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	+
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//protected:+
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	void SetFileFragmentData(FileFragmentData & aFileFragmentData, size_t aSize, char * aData){+
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		aFileFragmentData.SetSize(aSize);+
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		aFileFragmentData.SetData(aData);+
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	}		+
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	+
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protected:+
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	size_t iOffset;+
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};+
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+
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+
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/**+
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 * Represents a fragment of file of a given size (in bytes) at a given offset (in+
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 * bytes).+
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 */+
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class FileFragment+
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{+
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+
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public:+
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	FileFragment(size_t aOffset, size_t aSize, FileFragmentOwner * aOwner) :+
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		iOffset(aOffset), iSize(aSize), iOwner(aOwner)+
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		{};+
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	virtual ~FileFragment();+
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	+
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	inline size_t GetOffset() const { return iOffset; };+
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	inline size_t GetSize() const { return iSize; };+
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	inline void SetOffset(size_t newVal) { iOffset = newVal; };+
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	inline void SetSize(size_t newVal) { iSize = newVal; };+
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	void Write(OutputFile * aFile);+
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+
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private:+
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	/**+
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	 * offset in bytes at which the fragment occurs in the file+
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	 */+
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	size_t iOffset;+
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	/**+
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	 * size in bytes of the file fragment+
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	 */+
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	size_t iSize;+
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	/**+
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	 * the owner of the file fragment+
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	 */+
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	FileFragmentOwner * iOwner;+
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};+
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+
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#endif /*FILEFRAGMENT_H_*/+
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