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: public wxInputStream, virtual public wxFileStreamBase {
  26  public:
  27   wxFileInputStream(const wxString& fileName);
  28   virtual ~wxFileInputStream();
  29
  30   virtual char Peek();
  31
  32   bool Ok() const { return m_file->IsOpened(); }
  33
  34  protected:
  35   wxFileInputStream();
  36
  37   size_t DoRead(void *buffer, size_t size);
  38   off_t DoSeekInput(off_t pos, wxSeekMode mode);
  39   off_t DoTellInput() const;
  40 };
  41
  42 class wxFileOutputStream: public wxOutputStream, virtual public wxFileStreamBase {
  43  public:
  44   wxFileOutputStream(const wxString& fileName);
  45   virtual ~wxFileOutputStream();
  46
  47   // To solve an ambiguity on GCC
  48   inline wxOutputStream& Write(const void *buffer, size_t size)
  49      { return wxOutputStream::Write(buffer, size); }
  50
  51   void Sync();
  52
  53   bool Ok() const { return m_file->IsOpened(); }
  54
  55  protected:
  56   wxFileOutputStream();
  57
  58   size_t DoWrite(const void *buffer, size_t size);
  59   off_t DoSeekOutput(off_t pos, wxSeekMode mode);
  60   off_t DoTellOutput() const;
  61 };
  62
  63 class wxFileStream: public wxFileInputStream, public wxFileOutputStream {
  64  public:
  65   wxFileStream(const wxString& fileName);
  66   virtual ~wxFileStream();
  67 };
  68
  69 #endif