/////////////////////////////////////////////////////////////////////////////
-// Name: mstream.h
+// Name: wx/mstream.h
// Purpose: Memory stream classes
// Author: Guilhem Lavaux
// Modified by:
// Copyright: (c) Guilhem Lavaux
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-#ifndef __WXMMSTREAM_H__
-#define __WXMMSTREAM_H__
-#include <wx/stream.h>
+#ifndef _WX_WXMMSTREAM_H__
+#define _WX_WXMMSTREAM_H__
-class wxMemoryStreamBase {
- protected:
- wxMemoryStreamBase();
- virtual ~wxMemoryStreamBase();
+#include "wx/defs.h"
- bool ChangeBufferSize(size_t new_length);
+#if wxUSE_STREAMS
- protected:
- bool m_persistent;
- size_t m_length;
- char *m_buffer;
- int m_iolimit;
-};
+#include "wx/stream.h"
-class wxMemoryInputStream: virtual public wxMemoryStreamBase, public wxInputStream {
- DECLARE_CLASS(wxMemoryInputStream)
- public:
- wxMemoryInputStream(const char *data, size_t length);
- virtual ~wxMemoryInputStream();
-
- wxInputStream& Read(void *buffer, size_t size);
- off_t SeekI(off_t pos, wxSeekMode mode);
- off_t TellI() const { return m_position_i; }
-
- bool Eof() const { return m_eof; }
- size_t LastRead() const { return m_lastread; }
-
- protected:
- bool m_eof;
- off_t m_position_i;
- size_t m_lastread;
-};
+class WXDLLIMPEXP_BASE wxMemoryOutputStream;
+
+class WXDLLIMPEXP_BASE wxMemoryInputStream : public wxInputStream
+{
+public:
+ wxMemoryInputStream(const void *data, size_t length);
+ wxMemoryInputStream(const wxMemoryOutputStream& stream);
+ virtual ~wxMemoryInputStream();
+ virtual wxFileOffset GetLength() const { return m_length; }
+ virtual bool IsSeekable() const { return true; }
+
+ char Peek();
-class wxMemoryOutputStream: virtual public wxMemoryStreamBase, public wxOutputStream {
- DECLARE_CLASS(wxMemoryOutputStream)
- public:
- wxMemoryOutputStream(char *data = NULL, size_t length = 0);
- virtual ~wxMemoryOutputStream();
+ wxStreamBuffer *GetInputStreamBuffer() const { return m_i_streambuf; }
- wxOutputStream& Write(const void *buffer, size_t size);
- off_t SeekO(off_t pos, wxSeekMode mode);
- off_t TellO() const { return m_position_o; }
+#if WXWIN_COMPATIBILITY_2_6
+ // deprecated, compatibility only
+ wxDEPRECATED( wxStreamBuffer *InputStreamBuffer() const );
+#endif // WXWIN_COMPATIBILITY_2_6
- bool Bad() const { return m_bad; }
- size_t LastWrite() const { return m_lastwrite; }
+protected:
+ wxStreamBuffer *m_i_streambuf;
- char *GetData() { return m_buffer; }
- size_t GetLength() { return m_length; }
+ size_t OnSysRead(void *buffer, size_t nbytes);
+ wxFileOffset OnSysSeek(wxFileOffset pos, wxSeekMode mode);
+ wxFileOffset OnSysTell() const;
- protected:
- bool m_bad;
- off_t m_position_o;
- size_t m_lastwrite;
+private:
+ size_t m_length;
+
+ DECLARE_NO_COPY_CLASS(wxMemoryInputStream)
};
-class wxMemoryStream: public wxMemoryInputStream, public wxMemoryOutputStream {
- DECLARE_CLASS(wxMemoryStream)
- public:
- wxMemoryStream(char *data = NULL, size_t length = 0);
- virtual ~wxMemoryStream();
+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_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__