| 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 | #include "wx/defs.h" |
| 16 | |
| 17 | #if wxUSE_STREAMS |
| 18 | |
| 19 | #include "wx/object.h" |
| 20 | #include "wx/string.h" |
| 21 | #include "wx/stream.h" |
| 22 | #include "wx/file.h" |
| 23 | #include "wx/ffile.h" |
| 24 | |
| 25 | #if wxUSE_FILE |
| 26 | |
| 27 | // ---------------------------------------------------------------------------- |
| 28 | // wxFileStream using wxFile |
| 29 | // ---------------------------------------------------------------------------- |
| 30 | |
| 31 | class WXDLLIMPEXP_BASE wxFileInputStream : public wxInputStream |
| 32 | { |
| 33 | public: |
| 34 | wxFileInputStream(const wxString& ifileName); |
| 35 | wxFileInputStream(wxFile& file); |
| 36 | wxFileInputStream(int fd); |
| 37 | virtual ~wxFileInputStream(); |
| 38 | |
| 39 | wxFileOffset GetLength() const; |
| 40 | |
| 41 | bool Ok() const { return IsOk(); } |
| 42 | virtual bool IsOk() const { return (wxStreamBase::IsOk() && m_file->IsOpened()); } |
| 43 | bool IsSeekable() const { return m_file->GetKind() == wxFILE_KIND_DISK; } |
| 44 | |
| 45 | protected: |
| 46 | wxFileInputStream(); |
| 47 | |
| 48 | size_t OnSysRead(void *buffer, size_t size); |
| 49 | wxFileOffset OnSysSeek(wxFileOffset pos, wxSeekMode mode); |
| 50 | wxFileOffset OnSysTell() const; |
| 51 | |
| 52 | protected: |
| 53 | wxFile *m_file; |
| 54 | bool m_file_destroy; |
| 55 | |
| 56 | DECLARE_NO_COPY_CLASS(wxFileInputStream) |
| 57 | }; |
| 58 | |
| 59 | class WXDLLIMPEXP_BASE wxFileOutputStream : public wxOutputStream |
| 60 | { |
| 61 | public: |
| 62 | wxFileOutputStream(const wxString& fileName); |
| 63 | wxFileOutputStream(wxFile& file); |
| 64 | wxFileOutputStream(int fd); |
| 65 | virtual ~wxFileOutputStream(); |
| 66 | |
| 67 | void Sync(); |
| 68 | bool Close() { return m_file_destroy ? m_file->Close() : true; } |
| 69 | wxFileOffset GetLength() const; |
| 70 | |
| 71 | bool Ok() const { return IsOk(); } |
| 72 | virtual bool IsOk() const { return (wxStreamBase::IsOk() && m_file->IsOpened()); } |
| 73 | bool IsSeekable() const { return m_file->GetKind() == wxFILE_KIND_DISK; } |
| 74 | |
| 75 | protected: |
| 76 | wxFileOutputStream(); |
| 77 | |
| 78 | size_t OnSysWrite(const void *buffer, size_t size); |
| 79 | wxFileOffset OnSysSeek(wxFileOffset pos, wxSeekMode mode); |
| 80 | wxFileOffset OnSysTell() const; |
| 81 | |
| 82 | protected: |
| 83 | wxFile *m_file; |
| 84 | bool m_file_destroy; |
| 85 | |
| 86 | DECLARE_NO_COPY_CLASS(wxFileOutputStream) |
| 87 | }; |
| 88 | |
| 89 | class WXDLLIMPEXP_BASE wxTempFileOutputStream : public wxOutputStream |
| 90 | { |
| 91 | public: |
| 92 | wxTempFileOutputStream(const wxString& fileName); |
| 93 | virtual ~wxTempFileOutputStream(); |
| 94 | |
| 95 | bool Close() { return Commit(); } |
| 96 | virtual bool Commit() { return m_file->Commit(); } |
| 97 | virtual void Discard() { m_file->Discard(); } |
| 98 | |
| 99 | wxFileOffset GetLength() const { return m_file->Length(); } |
| 100 | bool IsSeekable() const { return true; } |
| 101 | |
| 102 | protected: |
| 103 | size_t OnSysWrite(const void *buffer, size_t size); |
| 104 | wxFileOffset OnSysSeek(wxFileOffset pos, wxSeekMode mode) |
| 105 | { return m_file->Seek(pos, mode); } |
| 106 | wxFileOffset OnSysTell() const { return m_file->Tell(); } |
| 107 | |
| 108 | private: |
| 109 | wxTempFile *m_file; |
| 110 | |
| 111 | DECLARE_NO_COPY_CLASS(wxTempFileOutputStream) |
| 112 | }; |
| 113 | |
| 114 | class WXDLLIMPEXP_BASE wxFileStream : public wxFileInputStream, |
| 115 | public wxFileOutputStream |
| 116 | { |
| 117 | public: |
| 118 | wxFileStream(const wxString& fileName); |
| 119 | |
| 120 | private: |
| 121 | DECLARE_NO_COPY_CLASS(wxFileStream) |
| 122 | }; |
| 123 | |
| 124 | #endif //wxUSE_FILE |
| 125 | |
| 126 | #if wxUSE_FFILE |
| 127 | |
| 128 | // ---------------------------------------------------------------------------- |
| 129 | // wxFFileStream using wxFFile |
| 130 | // ---------------------------------------------------------------------------- |
| 131 | |
| 132 | class WXDLLIMPEXP_BASE wxFFileInputStream : public wxInputStream |
| 133 | { |
| 134 | public: |
| 135 | wxFFileInputStream(const wxString& fileName, const wxChar *mode = _T("rb")); |
| 136 | wxFFileInputStream(wxFFile& file); |
| 137 | wxFFileInputStream(FILE *file); |
| 138 | virtual ~wxFFileInputStream(); |
| 139 | |
| 140 | wxFileOffset GetLength() const; |
| 141 | |
| 142 | bool Ok() const { return IsOk(); } |
| 143 | virtual bool IsOk() const { return (wxStreamBase::IsOk() && m_file->IsOpened()); } |
| 144 | bool IsSeekable() const { return m_file->GetKind() == wxFILE_KIND_DISK; } |
| 145 | |
| 146 | protected: |
| 147 | wxFFileInputStream(); |
| 148 | |
| 149 | size_t OnSysRead(void *buffer, size_t size); |
| 150 | wxFileOffset OnSysSeek(wxFileOffset pos, wxSeekMode mode); |
| 151 | wxFileOffset OnSysTell() const; |
| 152 | |
| 153 | protected: |
| 154 | wxFFile *m_file; |
| 155 | bool m_file_destroy; |
| 156 | |
| 157 | DECLARE_NO_COPY_CLASS(wxFFileInputStream) |
| 158 | }; |
| 159 | |
| 160 | class WXDLLIMPEXP_BASE wxFFileOutputStream : public wxOutputStream |
| 161 | { |
| 162 | public: |
| 163 | wxFFileOutputStream(const wxString& fileName, const wxChar *mode = _T("w+b")); |
| 164 | wxFFileOutputStream(wxFFile& file); |
| 165 | wxFFileOutputStream(FILE *file); |
| 166 | virtual ~wxFFileOutputStream(); |
| 167 | |
| 168 | void Sync(); |
| 169 | bool Close() { return m_file_destroy ? m_file->Close() : true; } |
| 170 | wxFileOffset GetLength() const; |
| 171 | |
| 172 | bool Ok() const { return IsOk(); } |
| 173 | virtual bool IsOk() const { return (wxStreamBase::IsOk() && m_file->IsOpened()); } |
| 174 | bool IsSeekable() const { return m_file->GetKind() == wxFILE_KIND_DISK; } |
| 175 | |
| 176 | protected: |
| 177 | wxFFileOutputStream(); |
| 178 | |
| 179 | size_t OnSysWrite(const void *buffer, size_t size); |
| 180 | wxFileOffset OnSysSeek(wxFileOffset pos, wxSeekMode mode); |
| 181 | wxFileOffset OnSysTell() const; |
| 182 | |
| 183 | protected: |
| 184 | wxFFile *m_file; |
| 185 | bool m_file_destroy; |
| 186 | |
| 187 | DECLARE_NO_COPY_CLASS(wxFFileOutputStream) |
| 188 | }; |
| 189 | |
| 190 | class WXDLLIMPEXP_BASE wxFFileStream : public wxFFileInputStream, |
| 191 | public wxFFileOutputStream |
| 192 | { |
| 193 | public: |
| 194 | wxFFileStream(const wxString& fileName); |
| 195 | |
| 196 | private: |
| 197 | DECLARE_NO_COPY_CLASS(wxFFileStream) |
| 198 | }; |
| 199 | |
| 200 | #endif //wxUSE_FFILE |
| 201 | |
| 202 | #endif // wxUSE_STREAMS |
| 203 | |
| 204 | #endif // _WX_WXFSTREAM_H__ |