88 lines
2.2 KiB
C
88 lines
2.2 KiB
C
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/////////////////////////////////////////////////////////////////////////////
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// Name: gzstream.h
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// Purpose: Streams for Gzip files
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// Author: Mike Wetherell
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// RCS-ID: $Id$
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// Copyright: (c) 2003 Mike Wetherell
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_GZSTREAM_H__
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#define _WX_GZSTREAM_H__
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#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
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#pragma interface "gzstream.h"
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#endif
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#include "wx/defs.h"
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#if wxUSE_STREAMS && wxUSE_GZSTREAM && wxUSE_ZLIB
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#include "wx/datetime.h"
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/////////////////////////////////////////////////////////////////////////////
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// wxGzipInputStream
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class WXDLLIMPEXP_BASE wxGzipInputStream : public wxFilterInputStream
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{
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public:
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wxGzipInputStream(wxInputStream& stream, wxMBConv& conv = wxConvFile);
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virtual ~wxGzipInputStream();
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wxString GetName() const { return m_name; }
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#if wxUSE_DATETIME
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wxDateTime GetDateTime() const { return m_datetime; }
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#endif
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virtual char Peek() { return wxInputStream::Peek(); }
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virtual size_t GetSize() const { return m_decomp ? m_decomp->GetSize() : 0; }
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protected:
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virtual size_t OnSysRead(void *buffer, size_t size);
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virtual off_t OnSysTell() const { return m_decomp ? m_decomp->TellI() : 0; }
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private:
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wxInputStream *m_decomp;
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wxUint32 m_crc;
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wxString m_name;
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#if wxUSE_DATETIME
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wxDateTime m_datetime;
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#endif
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DECLARE_NO_COPY_CLASS(wxGzipInputStream)
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};
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/////////////////////////////////////////////////////////////////////////////
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// wxGzipOutputStream
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class WXDLLIMPEXP_BASE wxGzipOutputStream : public wxFilterOutputStream
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{
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public:
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wxGzipOutputStream(wxOutputStream& stream,
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const wxString& originalName = wxEmptyString,
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int level = -1,
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wxMBConv& conv = wxConvFile);
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virtual ~wxGzipOutputStream();
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virtual void Sync();
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protected:
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virtual size_t OnSysWrite(const void *buffer, size_t size);
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virtual off_t OnSysTell() const { return m_comp ? m_comp->TellO() : 0; }
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private:
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wxOutputStream *m_comp;
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wxUint32 m_crc;
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DECLARE_NO_COPY_CLASS(wxGzipOutputStream)
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};
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#endif // wxUSE_STREAMS && wxUSE_GZSTREAM && wxUSE_ZLIB
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#endif // _WX_GZSTREAM_H__
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