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 #ifndef _WX_WXFSTREAM_H__
  12 #define _WX_WXFSTREAM_H__
  13
  14 #include <wx/object.h>
  15 #include <wx/string.h>
  16 #include <wx/stream.h>
  17 #include <wx/file.h>
  18
  19 class wxFileStreamBase {
  20 protected:
  21   wxFile *m_file;
  22   bool m_file_destroy;
  23 };
  24
  25 class wxFileInputStream: virtual public wxInputStream,
  26                          virtual public wxFileStreamBase {
  27  public:
  28   wxFileInputStream(const wxString& fileName);
  29   virtual ~wxFileInputStream();
  30
  31   virtual char Peek();
  32
  33   bool Ok() const { return m_file->IsOpened(); }
  34
  35  protected:
  36   wxFileInputStream();
  37
  38   size_t DoRead(void *buffer, size_t size);
  39   off_t DoSeekInput(off_t pos, wxSeekMode mode);
  40   off_t DoTellInput() const;
  41 };
  42
  43 class wxFileOutputStream: virtual public wxOutputStream,
  44                           virtual public wxFileStreamBase {
  45  public:
  46   wxFileOutputStream(const wxString& fileName);
  47   virtual ~wxFileOutputStream();
  48
  49   // To solve an ambiguity on GCC
  50   inline wxOutputStream& Write(const void *buffer, size_t size)
  51      { return wxOutputStream::Write(buffer, size); }
  52
  53   void Sync();
  54
  55   bool Ok() const { return m_file->IsOpened(); }
  56
  57  protected:
  58   wxFileOutputStream();
  59
  60   size_t DoWrite(const void *buffer, size_t size);
  61   off_t DoSeekOutput(off_t pos, wxSeekMode mode);
  62   off_t DoTellOutput() const;
  63 };
  64
  65 class wxFileStream: public wxStream,
  66                     public wxFileInputStream, public wxFileOutputStream {
  67  public:
  68   wxFileStream(const wxString& fileName);
  69   virtual ~wxFileStream();
  70 };
  71
  72 #endif