include/wx/zstream.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        zstream.h
   3 // Purpose:     Memory stream classes
   4 // Author:      Guilhem Lavaux
   5 // Modified by:
   6 // Created:     11/07/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Guilhem Lavaux
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11 #ifndef _WX_WXZSTREAM_H__
  12 #define _WX_WXZSTREAM_H__
  13
  14 #ifdef __GNUG__
  15 #pragma interface
  16 #endif
  17
  18 #include "wx/defs.h"
  19
  20 #if wxUSE_ZLIB && wxUSE_STREAMS
  21
  22 #include "wx/stream.h"
  23
  24 class WXDLLEXPORT wxZlibInputStream: public wxFilterInputStream {
  25  public:
  26   wxZlibInputStream(wxInputStream& stream);
  27   virtual ~wxZlibInputStream();
  28
  29  protected:
  30   size_t OnSysRead(void *buffer, size_t size);
  31
  32  protected:
  33   size_t m_z_size;
  34   unsigned char *m_z_buffer;
  35   struct z_stream_s *m_inflate;
  36 };
  37
  38 class WXDLLEXPORT wxZlibOutputStream: public wxFilterOutputStream {
  39  public:
  40   wxZlibOutputStream(wxOutputStream& stream, int level = -1);
  41   virtual ~wxZlibOutputStream();
  42
  43   void Sync();
  44
  45  protected:
  46   size_t OnSysWrite(const void *buffer, size_t size);
  47
  48  protected:
  49   size_t m_z_size;
  50   unsigned char *m_z_buffer;
  51   struct z_stream_s *m_deflate;
  52 };
  53
  54 #endif
  55   // wxUSE_ZLIB && wxUSE_STREAMS
  56
  57 #endif
  58    // _WX_WXZSTREAM_H__
  59