class WXDLLEXPORT wxStreamBuffer {
public:
typedef enum {
- read, write
+ read, write, read_write
} BufMode;
// -----------
// ctor & dtor
// -----------
wxStreamBuffer(wxStreamBase& stream, BufMode mode);
+ wxStreamBuffer(BufMode mode);
+ wxStreamBuffer(const wxStreamBuffer& buf);
~wxStreamBuffer();
// -----------
void Write(const void *buffer, size_t size);
bool WriteBack(const char *buffer, size_t size);
bool WriteBack(char c);
+ char GetChar();
+ void PutChar(char c);
off_t Tell() const;
off_t Seek(off_t pos, wxSeekMode mode);
off_t GetIntPosition() const { return m_buffer_pos-m_buffer_start; }
void SetIntPosition(off_t pos) { m_buffer_pos = m_buffer_start+pos; }
size_t GetLastAccess() const { return m_buffer_end-m_buffer_start; }
+
void Fixed(bool fixed) { m_fixed = fixed; }
+ void Flushable(bool f) { m_flushable = f; }
bool FlushBuffer();
bool FillBuffer();
char *m_wback;
size_t m_wbacksize, m_wbackcur;
- bool m_fixed;
+ bool m_fixed, m_flushable;
wxStreamBase *m_stream;
BufMode m_mode;
+ bool m_destroybuf;
};
// ---------------------------------------------------------------------------
wxStreamBase();
virtual ~wxStreamBase();
- wxStreamError LastError() { return m_lasterror; }
+ wxStreamError LastError() const { return m_lasterror; }
+ virtual size_t StreamSize() const { return ~((size_t)0); }
protected:
friend class wxStreamBuffer;
virtual size_t OnSysRead(void *buffer, size_t bufsize);
virtual size_t OnSysWrite(const void *buffer, size_t bufsize);
virtual off_t OnSysSeek(off_t seek, wxSeekMode mode);
- virtual off_t OnSysTell();
+ virtual off_t OnSysTell() const;
protected:
size_t m_lastcount;
char Peek() { return m_parent_i_stream->Peek(); }
+ wxStreamError LastError() const { return m_parent_i_stream->LastError(); }
+ size_t StreamSize() const { return m_parent_i_stream->StreamSize(); }
+
protected:
wxInputStream *m_parent_i_stream;
};
wxFilterOutputStream(wxOutputStream& stream);
~wxFilterOutputStream();
+ wxStreamError LastError() const { return m_parent_o_stream->LastError(); }
+ size_t StreamSize() const { return m_parent_o_stream->StreamSize(); }
+
protected:
wxOutputStream *m_parent_o_stream;
};