123 lines
4.3 KiB
C++
123 lines
4.3 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/stdstream.h
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// Purpose: Header of std::istream and std::ostream derived wrappers for
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// wxInputStream and wxOutputStream
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// Author: Jonathan Liu <net147@gmail.com>
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// Created: 2009-05-02
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// Copyright: (c) 2009 Jonathan Liu
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_STDSTREAM_H_
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#define _WX_STDSTREAM_H_
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#include "wx/defs.h" // wxUSE_STD_IOSTREAM
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#if wxUSE_STREAMS && wxUSE_STD_IOSTREAM
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#include "wx/defs.h"
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#include "wx/stream.h"
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#include "wx/ioswrap.h"
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// ==========================================================================
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// wxStdInputStreamBuffer
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// ==========================================================================
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class WXDLLIMPEXP_BASE wxStdInputStreamBuffer : public std::streambuf
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{
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public:
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wxStdInputStreamBuffer(wxInputStream& stream);
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virtual ~wxStdInputStreamBuffer() { }
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protected:
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virtual std::streambuf *setbuf(char *s, std::streamsize n);
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virtual std::streampos seekoff(std::streamoff off,
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std::ios_base::seekdir way,
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std::ios_base::openmode which =
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std::ios_base::in |
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std::ios_base::out);
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virtual std::streampos seekpos(std::streampos sp,
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std::ios_base::openmode which =
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std::ios_base::in |
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std::ios_base::out);
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virtual std::streamsize showmanyc();
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virtual std::streamsize xsgetn(char *s, std::streamsize n);
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virtual int underflow();
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virtual int uflow();
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virtual int pbackfail(int c = EOF);
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// Special work around for VC8/9 (this bug was fixed in VC10 and later):
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// these versions have non-standard _Xsgetn_s() that it being called from
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// the stream code instead of xsgetn() and so our overridden implementation
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// never actually gets used. To work around this, forward to it explicitly.
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#if defined(__VISUALC8__) || defined(__VISUALC9__)
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virtual std::streamsize
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_Xsgetn_s(char *s, size_t WXUNUSED(size), std::streamsize n)
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{
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return xsgetn(s, n);
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}
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#endif // VC8 or VC9
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wxInputStream& m_stream;
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int m_lastChar;
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};
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// ==========================================================================
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// wxStdInputStream
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// ==========================================================================
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class WXDLLIMPEXP_BASE wxStdInputStream : public std::istream
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{
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public:
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wxStdInputStream(wxInputStream& stream);
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virtual ~wxStdInputStream() { }
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protected:
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wxStdInputStreamBuffer m_streamBuffer;
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};
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// ==========================================================================
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// wxStdOutputStreamBuffer
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// ==========================================================================
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class WXDLLIMPEXP_BASE wxStdOutputStreamBuffer : public std::streambuf
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{
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public:
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wxStdOutputStreamBuffer(wxOutputStream& stream);
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virtual ~wxStdOutputStreamBuffer() { }
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protected:
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virtual std::streambuf *setbuf(char *s, std::streamsize n);
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virtual std::streampos seekoff(std::streamoff off,
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std::ios_base::seekdir way,
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std::ios_base::openmode which =
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std::ios_base::in |
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std::ios_base::out);
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virtual std::streampos seekpos(std::streampos sp,
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std::ios_base::openmode which =
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std::ios_base::in |
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std::ios_base::out);
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virtual std::streamsize xsputn(const char *s, std::streamsize n);
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virtual int overflow(int c);
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wxOutputStream& m_stream;
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};
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// ==========================================================================
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// wxStdOutputStream
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// ==========================================================================
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class WXDLLIMPEXP_BASE wxStdOutputStream : public std::ostream
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{
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public:
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wxStdOutputStream(wxOutputStream& stream);
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virtual ~wxStdOutputStream() { }
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protected:
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wxStdOutputStreamBuffer m_streamBuffer;
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};
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#endif // wxUSE_STREAMS && wxUSE_STD_IOSTREAM
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#endif // _WX_STDSTREAM_H_
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