#ifndef _WX_WXSTREAM_H__
#define _WX_WXSTREAM_H__
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma interface "stream.h"
-#endif
-
#include "wx/defs.h"
#if wxUSE_STREAMS
wxSTREAM_READ_ERROR // generic read error
};
-// compatibility
-#if WXWIN_COMPATIBILITY_2_2
- #define wxStream_NOERROR wxSTREAM_NOERROR
- #define wxStream_EOF wxSTREAM_EOF
- #define wxStream_WRITE_ERR wxSTREAM_WRITE_ERROR
- #define wxStream_READ_ERR wxSTREAM_READ_ERROR
-
- #define wxSTREAM_NO_ERR wxSTREAM_NO_ERROR
- #define wxSTREAM_NOERROR wxSTREAM_NO_ERROR
- #define wxSTREAM_WRITE_ERR wxSTREAM_WRITE_ERROR
- #define wxSTREAM_READ_ERR wxSTREAM_READ_ERROR
-#endif // WXWIN_COMPATIBILITY_2_2
-
// ============================================================================
// base stream classes: wxInputStream and wxOutputStream
// ============================================================================
void Reset() { m_lasterror = wxSTREAM_NO_ERROR; }
// this doesn't make sense for all streams, always test its return value
- virtual size_t GetSize() const { return 0; }
+ virtual size_t GetSize() const;
+ virtual wxFileOffset GetLength() const { return wxInvalidOffset; }
-#if WXWIN_COMPATIBILITY_2_2
- // deprecated, for compatibility only
- wxStreamError LastError() const { return m_lasterror; }
- size_t StreamSize() const { return GetSize(); }
-#endif // WXWIN_COMPATIBILITY_2_2
+ // returns true if the streams supports seeking to arbitrary offsets
+ virtual bool IsSeekable() const { return false; }
protected:
virtual wxFileOffset OnSysSeek(wxFileOffset seek, wxSeekMode mode);
protected:
// do read up to size bytes of data into the provided buffer
//
- // this method should return 0 if EOF has been reached or an error occured
+ // this method should return 0 if EOF has been reached or an error occurred
// (m_lasterror should be set accordingly as well) or the number of bytes
// read
virtual size_t OnSysRead(void *buffer, size_t size) = 0;
virtual size_t LastWrite() const { return wxStreamBase::m_lastcount; }
virtual void Sync();
+ virtual bool Close() { return true; }
wxOutputStream& operator<<(wxInputStream& out) { return Write(out); }
wxOutputStream& operator<<( __wxOutputManip func) { return func(*this); }
public:
wxCountingOutputStream();
- size_t GetSize() const;
+ wxFileOffset GetLength() const;
bool Ok() const { return true; }
protected:
char Peek() { return m_parent_i_stream->Peek(); }
- size_t GetSize() const { return m_parent_i_stream->GetSize(); }
+ wxFileOffset GetLength() const { return m_parent_i_stream->GetLength(); }
wxInputStream *GetFilterInputStream() const { return m_parent_i_stream; }
wxFilterOutputStream(wxOutputStream& stream);
virtual ~wxFilterOutputStream();
- size_t GetSize() const { return m_parent_o_stream->GetSize(); }
+ wxFileOffset GetLength() const { return m_parent_o_stream->GetLength(); }
wxOutputStream *GetFilterOutputStream() const { return m_parent_o_stream; }
wxInputStream *GetInputStream() const;
wxOutputStream *GetOutputStream() const;
+#if WXWIN_COMPATIBILITY_2_6
// deprecated, for compatibility only
- wxStreamBase *Stream() { return m_stream; }
+ wxDEPRECATED( wxStreamBase *Stream() );
+#endif // WXWIN_COMPATIBILITY_2_6
// this constructs a dummy wxStreamBuffer, used by (and exists for)
// wxMemoryStreams only, don't use!
// Position functions
wxFileOffset SeekI(wxFileOffset pos, wxSeekMode mode = wxFromStart);
wxFileOffset TellI() const;
+ bool IsSeekable() const { return m_parent_i_stream->IsSeekable(); }
// the buffer given to the stream will be deleted by it
void SetInputStreamBuffer(wxStreamBuffer *buffer);
wxStreamBuffer *GetInputStreamBuffer() const { return m_i_streambuf; }
+#if WXWIN_COMPATIBILITY_2_6
// deprecated, for compatibility only
- wxStreamBuffer *InputStreamBuffer() const { return m_i_streambuf; }
+ wxDEPRECATED( wxStreamBuffer *InputStreamBuffer() const );
+#endif // WXWIN_COMPATIBILITY_2_6
protected:
virtual size_t OnSysRead(void *buffer, size_t bufsize);
// Position functions
wxFileOffset SeekO(wxFileOffset pos, wxSeekMode mode = wxFromStart);
wxFileOffset TellO() const;
+ bool IsSeekable() const { return m_parent_o_stream->IsSeekable(); }
void Sync();
+ bool Close();
- size_t GetSize() const;
+ wxFileOffset GetLength() const;
// the buffer given to the stream will be deleted by it
void SetOutputStreamBuffer(wxStreamBuffer *buffer);
wxStreamBuffer *GetOutputStreamBuffer() const { return m_o_streambuf; }
+#if WXWIN_COMPATIBILITY_2_6
// deprecated, for compatibility only
- wxStreamBuffer *OutputStreamBuffer() const { return m_o_streambuf; }
+ wxDEPRECATED( wxStreamBuffer *OutputStreamBuffer() const );
+#endif // WXWIN_COMPATIBILITY_2_6
protected:
virtual size_t OnSysWrite(const void *buffer, size_t bufsize);
DECLARE_NO_COPY_CLASS(wxBufferedOutputStream)
};
+#if WXWIN_COMPATIBILITY_2_6
+ inline wxStreamBase *wxStreamBuffer::Stream() { return m_stream; }
+ inline wxStreamBuffer *wxBufferedInputStream::InputStreamBuffer() const { return m_i_streambuf; }
+ inline wxStreamBuffer *wxBufferedOutputStream::OutputStreamBuffer() const { return m_o_streambuf; }
+#endif // WXWIN_COMPATIBILITY_2_6
+
#endif // wxUSE_STREAMS
#endif // _WX_WXSTREAM_H__
-