/////////////////////////////////////////////////////////////////////////////
-// Name: mstream.h
+// Name: wx/mstream.h
// Purpose: Memory stream classes
// Author: Guilhem Lavaux
// Modified by:
// Copyright: (c) Guilhem Lavaux
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
+
#ifndef _WX_WXMMSTREAM_H__
#define _WX_WXMMSTREAM_H__
-#include <wx/stream.h>
+#include "wx/stream.h"
-class wxMemoryStreamBase {
- protected:
- wxMemoryStreamBase();
- virtual ~wxMemoryStreamBase();
+#if wxUSE_STREAMS
- bool ChangeBufferSize(size_t new_length);
+class WXDLLEXPORT wxMemoryInputStream : public wxInputStream
+{
+public:
+ wxMemoryInputStream(const void *data, size_t length);
+ virtual ~wxMemoryInputStream();
+ virtual size_t GetSize() const { return m_length; }
+ virtual bool Eof() const;
- protected:
- bool m_persistent;
- size_t m_length;
- char *m_buffer;
- int m_iolimit;
-};
+ char Peek();
-class wxMemoryInputStream: public virtual wxMemoryStreamBase, public wxInputStream {
- public:
- wxMemoryInputStream(const char *data, size_t length);
- virtual ~wxMemoryInputStream();
+ wxStreamBuffer *GetInputStreamBuffer() const { return m_i_streambuf; }
- char Peek();
+ // deprecated, compatibility only
+ wxStreamBuffer *InputStreamBuffer() const { return m_i_streambuf; }
- protected:
-
- size_t DoRead(void *buffer, size_t size);
- off_t DoSeekInput(off_t pos, wxSeekMode mode);
- off_t DoTellInput() const { return m_position_i; }
+protected:
+ wxStreamBuffer *m_i_streambuf;
- protected:
- off_t m_position_i;
+ size_t OnSysRead(void *buffer, size_t nbytes);
+ off_t OnSysSeek(off_t pos, wxSeekMode mode);
+ off_t OnSysTell() const;
+
+private:
+ size_t m_length;
};
-class wxMemoryOutputStream: public virtual wxMemoryStreamBase, public wxOutputStream {
- public:
- wxMemoryOutputStream(char *data = NULL, size_t length = 0);
- virtual ~wxMemoryOutputStream();
+class WXDLLEXPORT 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 size_t GetSize() const { return m_o_streambuf->GetLastAccess(); }
- char *GetData() { Sync(); return m_buffer; }
- size_t GetLength() { Sync(); return m_length; }
+ size_t CopyTo(void *buffer, size_t len) const;
- protected:
+ wxStreamBuffer *GetOutputStreamBuffer() const { return m_o_streambuf; }
- size_t DoWrite(const void *buffer, size_t size);
- off_t DoSeekOutput(off_t pos, wxSeekMode mode);
- off_t DoTellOutput() const { return m_position_o; }
+ // deprecated, compatibility only
+ wxStreamBuffer *OutputStreamBuffer() const { return m_o_streambuf; }
- protected:
- off_t m_position_o;
-};
+protected:
+ wxStreamBuffer *m_o_streambuf;
-class wxMemoryStream: public wxMemoryInputStream, public wxMemoryOutputStream {
- public:
- wxMemoryStream(char *data = NULL, size_t length = 0);
- virtual ~wxMemoryStream();
+protected:
+ size_t OnSysWrite(const void *buffer, size_t nbytes);
+ off_t OnSysSeek(off_t pos, wxSeekMode mode);
+ off_t OnSysTell() const;
};
#endif
+ // wxUSE_STREAMS
+
+#endif
+ // _WX_WXMMSTREAM_H__
+