/////////////////////////////////////////////////////////////////////////////
-// Name: mstream.h
+// Name: wx/mstream.h
// Purpose: Memory stream classes
// Author: Guilhem Lavaux
// Modified by:
// Created: 11/07/98
-// RCS-ID: $Id$
// Copyright: (c) Guilhem Lavaux
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
+
#ifndef _WX_WXMMSTREAM_H__
#define _WX_WXMMSTREAM_H__
-#include <wx/stream.h>
+#include "wx/defs.h"
#if wxUSE_STREAMS
-class wxMemoryInputStream: public wxInputStream {
- private:
- size_t m_length;
-
- public:
- wxMemoryInputStream(const char *data, size_t length);
- virtual ~wxMemoryInputStream();
- virtual size_t StreamSize() const { return m_length; }
+#include "wx/stream.h"
+
+class WXDLLIMPEXP_FWD_BASE wxMemoryOutputStream;
+
+class WXDLLIMPEXP_BASE wxMemoryInputStream : public wxInputStream
+{
+public:
+ wxMemoryInputStream(const void *data, size_t length);
+ wxMemoryInputStream(const wxMemoryOutputStream& stream);
+ wxMemoryInputStream(wxInputStream& stream,
+ wxFileOffset lenFile = wxInvalidOffset)
+ {
+ InitFromStream(stream, lenFile);
+ }
+ wxMemoryInputStream(wxMemoryInputStream& stream)
+ : wxInputStream()
+ {
+ InitFromStream(stream, wxInvalidOffset);
+ }
+
+ virtual ~wxMemoryInputStream();
+ virtual wxFileOffset GetLength() const { return m_length; }
+ virtual bool IsSeekable() const { return true; }
+
+ virtual char Peek();
+ virtual bool CanRead() const;
+
+ wxStreamBuffer *GetInputStreamBuffer() const { return m_i_streambuf; }
+
+#if WXWIN_COMPATIBILITY_2_6
+ // deprecated, compatibility only
+ wxDEPRECATED( wxStreamBuffer *InputStreamBuffer() const );
+#endif // WXWIN_COMPATIBILITY_2_6
+
+protected:
+ wxStreamBuffer *m_i_streambuf;
+
+ size_t OnSysRead(void *buffer, size_t nbytes);
+ wxFileOffset OnSysSeek(wxFileOffset pos, wxSeekMode mode);
+ wxFileOffset OnSysTell() const;
+
+private:
+ // common part of ctors taking wxInputStream
+ void InitFromStream(wxInputStream& stream, wxFileOffset lenFile);
- char Peek();
+ size_t m_length;
+
+ // copy ctor is implemented above: it copies the other stream in this one
+ DECLARE_ABSTRACT_CLASS(wxMemoryInputStream)
+ wxDECLARE_NO_ASSIGN_CLASS(wxMemoryInputStream);
};
-class wxMemoryOutputStream: public wxOutputStream {
- public:
- wxMemoryOutputStream(char *data = NULL, size_t length = 0);
- virtual ~wxMemoryOutputStream();
+class WXDLLIMPEXP_BASE wxMemoryOutputStream : public wxOutputStream
+{
+public:
+ // if data is !NULL it must be allocated with malloc()
+ wxMemoryOutputStream(void *data = NULL, size_t length = 0);
+ virtual ~wxMemoryOutputStream();
+ virtual wxFileOffset GetLength() const { return m_o_streambuf->GetLastAccess(); }
+ virtual bool IsSeekable() const { return true; }
+
+ size_t CopyTo(void *buffer, size_t len) const;
+
+ wxStreamBuffer *GetOutputStreamBuffer() const { return m_o_streambuf; }
+
+#if WXWIN_COMPATIBILITY_2_6
+ // deprecated, compatibility only
+ wxDEPRECATED( wxStreamBuffer *OutputStreamBuffer() const );
+#endif // WXWIN_COMPATIBILITY_2_6
+
+protected:
+ wxStreamBuffer *m_o_streambuf;
+
+protected:
+ size_t OnSysWrite(const void *buffer, size_t nbytes);
+ wxFileOffset OnSysSeek(wxFileOffset pos, wxSeekMode mode);
+ wxFileOffset OnSysTell() const;
+
+ DECLARE_DYNAMIC_CLASS(wxMemoryOutputStream)
+ wxDECLARE_NO_COPY_CLASS(wxMemoryOutputStream);
};
+#if WXWIN_COMPATIBILITY_2_6
+ inline wxStreamBuffer *wxMemoryInputStream::InputStreamBuffer() const { return m_i_streambuf; }
+ inline wxStreamBuffer *wxMemoryOutputStream::OutputStreamBuffer() const { return m_o_streambuf; }
+#endif // WXWIN_COMPATIBILITY_2_6
+
#endif
// wxUSE_STREAMS
#endif
// _WX_WXMMSTREAM_H__
-