include/wx/wfstream.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/wfstream.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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  16 #pragma interface "wfstream.h"
  17 #endif
  18
  19 #include "wx/defs.h"
  20
  21 #if wxUSE_STREAMS
  22
  23 #include "wx/object.h"
  24 #include "wx/string.h"
  25 #include "wx/stream.h"
  26 #include "wx/file.h"
  27 #include "wx/ffile.h"
  28
  29 #if wxUSE_FILE
  30
  31 // ----------------------------------------------------------------------------
  32 // wxFileStream using wxFile
  33 // ----------------------------------------------------------------------------
  34
  35 class WXDLLIMPEXP_BASE wxFileInputStream : public wxInputStream
  36 {
  37 public:
  38     wxFileInputStream(const wxString& ifileName);
  39     wxFileInputStream(wxFile& file);
  40     wxFileInputStream(int fd);
  41     ~wxFileInputStream();
  42
  43     wxFileOffset GetLength() const;
  44
  45     bool Ok() const { return m_file->IsOpened(); }
  46     bool IsSeekable() const { return m_file->GetKind() == wxFILE_KIND_DISK; }
  47
  48 protected:
  49     wxFileInputStream();
  50
  51     size_t OnSysRead(void *buffer, size_t size);
  52     wxFileOffset OnSysSeek(wxFileOffset pos, wxSeekMode mode);
  53     wxFileOffset OnSysTell() const;
  54
  55 protected:
  56     wxFile *m_file;
  57     bool m_file_destroy;
  58
  59     DECLARE_NO_COPY_CLASS(wxFileInputStream)
  60 };
  61
  62 class WXDLLIMPEXP_BASE wxFileOutputStream : public wxOutputStream
  63 {
  64 public:
  65     wxFileOutputStream(const wxString& fileName);
  66     wxFileOutputStream(wxFile& file);
  67     wxFileOutputStream(int fd);
  68     virtual ~wxFileOutputStream();
  69
  70     void Sync();
  71     bool Close() { return m_file_destroy ? m_file->Close() : true; }
  72     wxFileOffset GetLength() const;
  73
  74     bool Ok() const { return m_file->IsOpened(); }
  75     bool IsSeekable() const { return m_file->GetKind() == wxFILE_KIND_DISK; }
  76
  77 protected:
  78     wxFileOutputStream();
  79
  80     size_t OnSysWrite(const void *buffer, size_t size);
  81     wxFileOffset OnSysSeek(wxFileOffset pos, wxSeekMode mode);
  82     wxFileOffset OnSysTell() const;
  83
  84 protected:
  85     wxFile *m_file;
  86     bool m_file_destroy;
  87
  88     DECLARE_NO_COPY_CLASS(wxFileOutputStream)
  89 };
  90
  91 class WXDLLIMPEXP_BASE wxFileStream : public wxFileInputStream,
  92                                       public wxFileOutputStream
  93 {
  94 public:
  95     wxFileStream(const wxString& fileName);
  96
  97 private:
  98     DECLARE_NO_COPY_CLASS(wxFileStream)
  99 };
 100
 101 #endif //wxUSE_FILE
 102
 103 #if wxUSE_FFILE
 104
 105 // ----------------------------------------------------------------------------
 106 // wxFFileStream using wxFFile
 107 // ----------------------------------------------------------------------------
 108
 109 class WXDLLIMPEXP_BASE wxFFileInputStream : public wxInputStream
 110 {
 111 public:
 112     wxFFileInputStream(const wxString& fileName, const wxChar *mode = _T("rb"));
 113     wxFFileInputStream(wxFFile& file);
 114     wxFFileInputStream(FILE *file);
 115     ~wxFFileInputStream();
 116
 117     wxFileOffset GetLength() const;
 118
 119     bool Ok() const { return m_file->IsOpened(); }
 120     bool IsSeekable() const { return m_file->GetKind() == wxFILE_KIND_DISK; }
 121
 122 protected:
 123     wxFFileInputStream();
 124
 125     size_t OnSysRead(void *buffer, size_t size);
 126     wxFileOffset OnSysSeek(wxFileOffset pos, wxSeekMode mode);
 127     wxFileOffset OnSysTell() const;
 128
 129 protected:
 130     wxFFile *m_file;
 131     bool m_file_destroy;
 132
 133     DECLARE_NO_COPY_CLASS(wxFFileInputStream)
 134 };
 135
 136 class WXDLLIMPEXP_BASE wxFFileOutputStream : public wxOutputStream
 137 {
 138 public:
 139     wxFFileOutputStream(const wxString& fileName, const wxChar *mode = _T("w+b"));
 140     wxFFileOutputStream(wxFFile& file);
 141     wxFFileOutputStream(FILE *file);
 142     virtual ~wxFFileOutputStream();
 143
 144     void Sync();
 145     bool Close() { return m_file_destroy ? m_file->Close() : true; }
 146     wxFileOffset GetLength() const;
 147
 148     bool Ok() const { return m_file->IsOpened(); }
 149     bool IsSeekable() const { return m_file->GetKind() == wxFILE_KIND_DISK; }
 150
 151 protected:
 152     wxFFileOutputStream();
 153
 154     size_t OnSysWrite(const void *buffer, size_t size);
 155     wxFileOffset OnSysSeek(wxFileOffset pos, wxSeekMode mode);
 156     wxFileOffset OnSysTell() const;
 157
 158 protected:
 159     wxFFile *m_file;
 160     bool m_file_destroy;
 161
 162     DECLARE_NO_COPY_CLASS(wxFFileOutputStream)
 163 };
 164
 165 class WXDLLIMPEXP_BASE wxFFileStream : public wxFFileInputStream,
 166                                        public wxFFileOutputStream
 167 {
 168 public:
 169     wxFFileStream(const wxString& fileName);
 170
 171 private:
 172     DECLARE_NO_COPY_CLASS(wxFFileStream)
 173 };
 174
 175 #endif //wxUSE_FFILE
 176
 177 #endif // wxUSE_STREAMS
 178
 179 #endif // _WX_WXFSTREAM_H__