src/stream/ZStrim_Stream.h

/*  @(#) $Id: ZStrim_Stream.h,v 1.15 2006/07/23 21:58:20 agreen Exp $ */

/* ------------------------------------------------------------
Copyright (c) 2003 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 __ZStrim_Stream__
#define __ZStrim_Stream__ 1

#include "ZStrim.h"

class ZStreamR;
class ZStreamW;
class ZTextDecoder;
class ZTextEncoder;

// =================================================================================================
#pragma mark -
#pragma mark * ZStrimR_StreamUTF32BE


class ZStrimR_StreamUTF32BE : public ZStrimR
        {
public:
        ZStrimR_StreamUTF32BE(const ZStreamR& iStreamR);

// From ZStrimR
        virtual void Imp_ReadUTF32(UTF32* iDest, size_t iCount, size_t* oCount);

private:
        const ZStreamR& fStreamR;
        };

// =================================================================================================
#pragma mark -
#pragma mark * ZStrimR_StreamUTF32LE


class ZStrimR_StreamUTF32LE : public ZStrimR
        {
public:
        ZStrimR_StreamUTF32LE(const ZStreamR& iStreamR);

// From ZStrimR
        virtual void Imp_ReadUTF32(UTF32* iDest, size_t iCount, size_t* oCount);

private:
        const ZStreamR& fStreamR;
        };

// =================================================================================================
#pragma mark -
#pragma mark * ZStrimR_StreamUTF16BE


class ZStrimR_StreamUTF16BE : public ZStrimR
        {
public:
        ZStrimR_StreamUTF16BE(const ZStreamR& iStreamR);

// From ZStrimR
        virtual void Imp_ReadUTF32(UTF32* iDest, size_t iCount, size_t* oCount);

private:
        const ZStreamR& fStreamR;
        };

// =================================================================================================
#pragma mark -
#pragma mark * ZStrimR_StreamUTF16LE


class ZStrimR_StreamUTF16LE : public ZStrimR
        {
public:
        ZStrimR_StreamUTF16LE(const ZStreamR& iStreamR);

// From ZStrimR
        virtual void Imp_ReadUTF32(UTF32* iDest, size_t iCount, size_t* oCount);

private:
        const ZStreamR& fStreamR;
        };

// =================================================================================================
#pragma mark -
#pragma mark * ZStrimR_StreamUTF8


class ZStrimR_StreamUTF8 : public ZStrimR
        {
public:
        ZStrimR_StreamUTF8(const ZStreamR& iStreamR);

// From ZStrimR
        virtual void Imp_ReadUTF32(UTF32* iDest, size_t iCount, size_t* oCount);

        virtual void Imp_ReadUTF8(UTF8*
                iDest, size_t iCountCU, size_t* oCountCU, size_t iCountCP, size_t* oCountCP);

private:
        const ZStreamR& fStreamR;
        };

// =================================================================================================
#pragma mark -
#pragma mark * ZStrimW_StreamUTF32BE


class ZStrimW_StreamUTF32BE : public ZStrimW_NativeUTF32
        {
public:
        ZStrimW_StreamUTF32BE(const ZStreamW& iStreamW);

// From ZStrimW via ZStrimW_NativeUTF32
        virtual void Imp_WriteUTF32(const UTF32* iSource, size_t iCountCU, size_t* oCountCU);
        virtual void Imp_Flush();

private:
        const ZStreamW& fStreamW;
        };

// =================================================================================================
#pragma mark -
#pragma mark * ZStrimW_StreamUTF32LE


class ZStrimW_StreamUTF32LE : public ZStrimW_NativeUTF32
        {
public:
        ZStrimW_StreamUTF32LE(const ZStreamW& iStreamW);

// From ZStrimW via ZStrimW_NativeUTF32
        virtual void Imp_WriteUTF32(const UTF32* iSource, size_t iCountCU, size_t* oCountCU);
        virtual void Imp_Flush();

private:
        const ZStreamW& fStreamW;
        };

// =================================================================================================
#pragma mark -
#pragma mark * ZStrimW_StreamUTF16BE


class ZStrimW_StreamUTF16BE : public ZStrimW_NativeUTF16
        {
public:
        ZStrimW_StreamUTF16BE(const ZStreamW& iStreamW);

// From ZStrimW via ZStrimW_NativeUTF16
        virtual void Imp_WriteUTF16(const UTF16* iSource, size_t iCountCU, size_t* oCountCU);
        virtual void Imp_Flush();

private:
        const ZStreamW& fStreamW;
        };

// =================================================================================================
#pragma mark -
#pragma mark * ZStrimW_StreamUTF16LE


class ZStrimW_StreamUTF16LE : public ZStrimW_NativeUTF16
        {
public:
        ZStrimW_StreamUTF16LE(const ZStreamW& iStreamW);

// From ZStrimW via ZStrimW_NativeUTF16
        virtual void Imp_WriteUTF16(const UTF16* iSource, size_t iCountCU, size_t* oCountCU);
        virtual void Imp_Flush();

private:
        const ZStreamW& fStreamW;
        };

// =================================================================================================
#pragma mark -
#pragma mark * ZStrimW_StreamUTF8


class ZStrimW_StreamUTF8 : public ZStrimW_NativeUTF8
        {
public:
        ZStrimW_StreamUTF8(const ZStreamW& iStreamW);

// From ZStrimW via ZStrimW_NativeUTF8
        virtual void Imp_WriteUTF8(const UTF8* iSource, size_t iCountCU, size_t* oCountCU);
        virtual void Imp_Flush();

private:
        const ZStreamW& fStreamW;
        };

// =================================================================================================
#pragma mark -
#pragma mark * ZStrimR_StreamDecoder

class ZStrimR_StreamDecoder : public ZStrimR
        {
public:
        ZStrimR_StreamDecoder(ZTextDecoder* iDecoder, const ZStreamR& iStreamR);
        ZStrimR_StreamDecoder(const std::pair<ZTextDecoder*, const ZStreamR*>& iParam);
        ~ZStrimR_StreamDecoder();

// From ZStrimR
        virtual void Imp_ReadUTF32(UTF32* iDest, size_t iCount, size_t* oCount);

// Our protocol
        void SetDecoder(ZTextDecoder* iDecoder);
        ZTextDecoder* SetDecoderReturnOld(ZTextDecoder* iDecoder);

private:
        const ZStreamR& fStreamR;
        ZTextDecoder* fDecoder;
        };

// =================================================================================================
#pragma mark -
#pragma mark * ZStrimW_StreamEncoder

class ZStrimW_StreamEncoder : public ZStrimW_NativeUTF32
        {
public:
        ZStrimW_StreamEncoder(ZTextEncoder* iEncoder, const ZStreamW& iStreamW);
        ZStrimW_StreamEncoder(const std::pair<ZTextEncoder*, const ZStreamW*>& iParam);
        ~ZStrimW_StreamEncoder();

// From ZStrimW via ZStrimW_NativeUTF32
        virtual void Imp_WriteUTF32(const UTF32* iSource, size_t iCountCU, size_t* oCountCU);
        virtual void Imp_Flush();

// Our protocol
        void SetEncoder(ZTextEncoder* iEncoder);
        ZTextEncoder* SetEncoderReturnOld(ZTextEncoder* iEncoder);

private:
        const ZStreamW& fStreamW;
        ZTextEncoder* fEncoder;
        };

#endif // __ZStrim_Stream__

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