gd_io_stream.h

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/* *****************************************************************************
** Initial file written and documented by:
** Kevin Shepherd <kshepherd@php.net> December 2007
** of Scarlet Line http://www.scarletline.com/
*******************************************************************************/
#ifndef _gd_io_stream_h
#define _gd_io_stream_h
#ifdef __cplusplus
 
#include "gd.h"
#include <iostream>
 
class BGD_EXPORT_DATA_IMPL istreamIOCtx : public gdIOCtx {
  public:
    typedef std::istream stream_type;
    istreamIOCtx(stream_type &__stream) { init(&__stream); }
 
    static int Getbuf(gdIOCtxPtr ctx, void *buf, int size);
    static int Putbuf(gdIOCtxPtr, const void *, int);
    static void Putchar(gdIOCtxPtr, int);
    static int Getchar(gdIOCtxPtr ctx);
    static int Seek(gdIOCtxPtr ctx, const int pos);
    static long Tell(gdIOCtxPtr ctx);
    static void FreeCtx(gdIOCtxPtr ctx);
 
    void init(stream_type *__stream)
    {
        getC = Getchar;
        putC = Putchar;
        getBuf = Getbuf;
        putBuf = Putbuf;
        tell = Tell;
        seek = Seek;
        gd_free = FreeCtx;
        _M_stream = __stream;
    }
 
  private:
    stream_type *_M_stream;
};
inline gdIOCtxPtr gdNewIstreamCtx(std::istream *__stream) { return new istreamIOCtx(*__stream); }
 
class BGD_EXPORT_DATA_IMPL ostreamIOCtx : public gdIOCtx {
  public:
    typedef std::ostream stream_type;
    ostreamIOCtx(stream_type &__stream) { init(&__stream); }
 
    static int Getbuf(gdIOCtxPtr, void *, int);
    static int Putbuf(gdIOCtxPtr ctx, const void *buf, int size);
    static int Getchar(gdIOCtxPtr);
    static void Putchar(gdIOCtxPtr ctx, int a);
    static int Seek(gdIOCtxPtr ctx, const int pos);
    static long Tell(gdIOCtxPtr ctx);
    static void FreeCtx(gdIOCtxPtr ctx);
 
    void init(stream_type *__stream)
    {
        getC = Getchar;
        putC = Putchar;
        getBuf = Getbuf;
        putBuf = Putbuf;
        tell = Tell;
        seek = Seek;
        gd_free = FreeCtx;
        _M_stream = __stream;
    }
 
  private:
    stream_type *_M_stream;
};
inline gdIOCtxPtr gdNewOstreamCtx(std::ostream *__stream) { return new ostreamIOCtx(*__stream); }
 
#endif /* __cplusplus */
#endif /* _gd_io_stream_h */