src/stream/ZStream_String.h

/*  @(#) $Id: ZStream_String.h,v 1.4 2006/04/10 20:44:21 agreen Exp $ */

/* ------------------------------------------------------------
Copyright (c) 2004 Andrew Green and Learning in Motion, Inc.
http://www.zoolib.org

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
------------------------------------------------------------ */

#ifndef __ZStream_String__
#define __ZStream_String__ 1
#include "zconfig.h"

#include "ZStream.h"

#include <string>

// =================================================================================================
#pragma mark -
#pragma mark * ZStreamRPos_String


class ZStreamRPos_String : public ZStreamRPos
        {
public:
        ZStreamRPos_String(const std::string& inString);
        ~ZStreamRPos_String();

// From ZStreamR via ZStreamRPos
        virtual void Imp_Read(void* iDest, size_t iCount, size_t* oCountRead);

// From ZStreamRPos
        virtual uint64 Imp_GetPosition();
        virtual void Imp_SetPosition(uint64 inPosition);

        virtual uint64 Imp_GetSize();

protected:
        const std::string& fString;
        uint64 fPosition;
        };

// =================================================================================================
#pragma mark -
#pragma mark * ZStreamWPos_String


class ZStreamWPos_String : public ZStreamWPos
        {
public:
        ZStreamWPos_String(std::string& inString);
        ~ZStreamWPos_String();

// From ZStreamW via ZStreamWPos
        virtual void Imp_Write(const void* iSource, size_t iCount, size_t* oCountWritten);

// From ZStreamWPos
        virtual uint64 Imp_GetPosition();
        virtual void Imp_SetPosition(uint64 inPosition);

        virtual uint64 Imp_GetSize();
        virtual void Imp_SetSize(uint64 iSize);

protected:
        std::string& fString;
        uint64 fPosition;
        };

// =================================================================================================
#pragma mark -
#pragma mark * ZStreamRWPos_String


class ZStreamRWPos_String : public ZStreamRWPos
        {
public:
        ZStreamRWPos_String(std::string& inString);
        ~ZStreamRWPos_String();

// From ZStreamR via ZStreamRWPos
        virtual void Imp_Read(void* iDest, size_t iCount, size_t* oCountRead);

// From ZStreamW via ZStreamRWPos
        virtual void Imp_Write(const void* iSource, size_t iCount, size_t* oCountWritten);
        virtual void Imp_Flush();

// From ZStreamRPos/ZStreamWPos via ZStreamRWPos
        virtual uint64 Imp_GetPosition();
        virtual void Imp_SetPosition(uint64 inPosition);

        virtual uint64 Imp_GetSize();

// From ZStreamWPos via ZStreamRWPos
        virtual void Imp_SetSize(uint64 inSize);

protected:
        std::string& fString;
        uint64 fPosition;
        };

// =================================================================================================

#endif // __ZStream_String__

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