include/wx/fstream.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        fstream.h
   3 // Purpose:     File 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
  12 #ifndef _WX_WXFSTREAM_H__
  13 #define _WX_WXFSTREAM_H__
  14
  15 #ifdef __GNUG__
  16 #pragma interface "fstream.h"
  17 #endif
  18
  19 #include <wx/object.h>
  20 #include <wx/string.h>
  21 #include <wx/stream.h>
  22 #include <wx/file.h>
  23
  24 // Disable warnings such as
  25 // 'wxFileStream' : inherits 'wxFileInputStream::Peek' via dominance
  26
  27 #ifdef _MSC_VER
  28 #pragma warning(disable:4250)
  29 #endif
  30
  31 class wxFileStreamBase {
  32 protected:
  33   wxFile *m_file;
  34   bool m_file_destroy;
  35 };
  36
  37 class wxFileInputStream: public virtual wxInputStream,
  38                          public virtual wxFileStreamBase {
  39  public:
  40   wxFileInputStream(const wxString& fileName);
  41   virtual ~wxFileInputStream();
  42
  43   virtual char Peek();
  44
  45   bool Ok() const { return m_file->IsOpened(); }
  46
  47  protected:
  48   wxFileInputStream();
  49
  50   size_t DoRead(void *buffer, size_t size);
  51   off_t DoSeekInput(off_t pos, wxSeekMode mode);
  52   off_t DoTellInput() const;
  53 };
  54
  55 class wxFileOutputStream: public virtual wxOutputStream,
  56                           public virtual wxFileStreamBase {
  57  public:
  58   wxFileOutputStream(const wxString& fileName);
  59   virtual ~wxFileOutputStream();
  60
  61   // To solve an ambiguity on GCC
  62   inline wxOutputStream& Write(const void *buffer, size_t size)
  63      { return wxOutputStream::Write(buffer, size); }
  64
  65   void Sync();
  66
  67   bool Ok() const { return m_file->IsOpened(); }
  68
  69  protected:
  70   wxFileOutputStream();
  71
  72   size_t DoWrite(const void *buffer, size_t size);
  73   off_t DoSeekOutput(off_t pos, wxSeekMode mode);
  74   off_t DoTellOutput() const;
  75 };
  76
  77 class wxFileStream: public wxStream,
  78                     public wxFileInputStream, public wxFileOutputStream {
  79  public:
  80   wxFileStream(const wxString& fileName);
  81   virtual ~wxFileStream();
  82 };
  83
  84 #ifdef _MSC_VER
  85 #pragma warning(default:4250)
  86 #endif
  87
  88 #endif