// wxStream: base classes
// ---------------------------------------------------------------------------
-#define wxStream_NOERROR wxSTR_NOERROR
-#define wxStream_EOF wxSTR_EOF
-#define wxStream_WRITE_ERR wxSTR_WRITE_ERROR
-#define wxStream_READ_ERR wxSTR_READ_ERROR
-
-typedef enum {
- wxStream_NOERROR = 0,
- wxStream_EOF,
- wxStream_WRITE_ERR,
- wxStream_READ_ERR
-} wxStreamError;
-
-class WXDLLEXPORT wxStreamBase {
- public:
- wxStreamBase();
- virtual ~wxStreamBase();
+typedef enum
+{
+ wxSTREAM_NO_ERROR = 0,
+ wxSTREAM_NO_ERR = wxSTREAM_NO_ERROR,
+ wxSTREAM_NOERROR = wxSTREAM_NO_ERROR,
- wxStreamError LastError() const { return m_lasterror; }
- virtual size_t StreamSize() const { return ~((size_t)0); }
+ wxSTREAM_EOF,
- protected:
+ wxSTREAM_WRITE_ERROR,
+ wxSTREAM_WRITE_ERR = wxSTREAM_WRITE_ERROR,
- 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() const;
+ wxSTREAM_READ_ERROR,
+ wxSTREAM_READ_ERR = wxSTREAM_READ_ERROR
- protected:
- friend class wxStreamBuffer;
+} wxStreamError;
- size_t m_lastcount;
- wxStreamError m_lasterror;
+// compatibility
+#define wxStream_NOERROR wxSTREAM_NOERROR
+#define wxStream_EOF wxSTREAM_EOF
+#define wxStream_WRITE_ERR wxSTREAM_WRITE_ERROR
+#define wxStream_READ_ERR wxSTREAM_READ_ERROR
+
+class WXDLLEXPORT wxStreamBase
+{
+public:
+ wxStreamBase();
+ virtual ~wxStreamBase();
+
+ // error testing
+ wxStreamError LastError() const { return m_lasterror; }
+ wxStreamError GetLastError() const { return m_lasterror; }
+ bool IsOk() const { return LastError() == wxSTREAM_NOERROR; }
+ bool operator!() const { return LastError() != wxSTREAM_NOERROR; }
+
+ virtual size_t GetSize() const { return ~((size_t)0); }
+ size_t StreamSize() const { return GetSize(); }
+
+protected:
+ 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() const;
+
+ friend class wxStreamBuffer;
+
+ size_t m_lastcount;
+ wxStreamError m_lasterror;
};
-class WXDLLEXPORT wxInputStream: public wxStreamBase {
- public:
- wxInputStream();
- virtual ~wxInputStream();
+class WXDLLEXPORT wxInputStream: public wxStreamBase
+{
+public:
+ wxInputStream();
+ virtual ~wxInputStream();
+
+ // is the stream at EOF?
+ virtual bool Eof() const;
- // IO functions
- virtual char Peek();
- char GetC();
- virtual wxInputStream& Read(void *buffer, size_t size);
- wxInputStream& Read(wxOutputStream& stream_out);
+ // IO functions
+ virtual char Peek();
+ char GetC();
+ virtual wxInputStream& Read(void *buffer, size_t size);
+ wxInputStream& Read(wxOutputStream& stream_out);
- // Position functions
- virtual off_t SeekI(off_t pos, wxSeekMode mode = wxFromStart);
- virtual off_t TellI() const;
+ // Position functions
+ virtual off_t SeekI(off_t pos, wxSeekMode mode = wxFromStart);
+ virtual off_t TellI() const;
- // State functions
- virtual size_t LastRead() { return wxStreamBase::m_lastcount; }
+ // State functions
+ virtual size_t LastRead() { return wxStreamBase::m_lastcount; }
- // Ungetch
- size_t Ungetch(void *buffer, size_t size);
- bool Ungetch(char c);
+ // Ungetch
+ size_t Ungetch(const void *buffer, size_t size);
+ bool Ungetch(char c);
- // Operators
- wxInputStream& operator>>(wxOutputStream& out) { return Read(out); }
+ // Operators
+ wxInputStream& operator>>(wxOutputStream& out) { return Read(out); }
#if wxUSE_SERIAL
- wxInputStream& operator>>(wxObject *& obj);
+ wxInputStream& operator>>(wxObject *& obj);
#endif
- wxInputStream& operator>>( __wxInputManip func) { return func(*this); }
+ wxInputStream& operator>>( __wxInputManip func) { return func(*this); }
- protected:
- // Ungetch managers
- char *m_wback;
- size_t m_wbacksize;
- size_t m_wbackcur;
-
- char *AllocSpaceWBack(size_t needed_size);
- size_t GetWBack(char *buf, size_t bsize);
+protected:
+ // Ungetch managers
+ char *m_wback;
+ size_t m_wbacksize;
+ size_t m_wbackcur;
+ char *AllocSpaceWBack(size_t needed_size);
+ size_t GetWBack(char *buf, size_t bsize);
};
-class WXDLLEXPORT wxOutputStream: public wxStreamBase {
- public:
- wxOutputStream();
- virtual ~wxOutputStream();
+class WXDLLEXPORT wxOutputStream: public wxStreamBase
+{
+public:
+ wxOutputStream();
+ virtual ~wxOutputStream();
- virtual wxOutputStream& Write(const void *buffer, size_t size);
- wxOutputStream& Write(wxInputStream& stream_in);
+ void PutC(char c);
+ virtual wxOutputStream& Write(const void *buffer, size_t size);
+ wxOutputStream& Write(wxInputStream& stream_in);
- virtual off_t SeekO(off_t pos, wxSeekMode mode = wxFromStart);
- virtual off_t TellO() const;
+ virtual off_t SeekO(off_t pos, wxSeekMode mode = wxFromStart);
+ virtual off_t TellO() const;
- virtual size_t LastWrite() const { return wxStreamBase::m_lastcount; }
+ virtual size_t LastWrite() const { return wxStreamBase::m_lastcount; }
- virtual void Sync();
+ virtual void Sync();
- wxOutputStream& operator<<(wxInputStream& out) { return Write(out); }
+ wxOutputStream& operator<<(wxInputStream& out) { return Write(out); }
#if wxUSE_SERIAL
- wxOutputStream& operator<<(wxObject& obj);
+ wxOutputStream& operator<<(wxObject& obj);
#endif
- wxOutputStream& operator<<( __wxOutputManip func) { return func(*this); }
+ wxOutputStream& operator<<( __wxOutputManip func) { return func(*this); }
+};
+
+// ---------------------------------------------------------------------------
+// A stream for measuring streamed output
+// ---------------------------------------------------------------------------
+
+class WXDLLEXPORT wxCountingOutputStream: public wxOutputStream
+{
+public:
+ wxCountingOutputStream();
+
+ size_t GetSize() const;
+ bool Ok() const { return TRUE; }
+
+protected:
+ size_t OnSysWrite(const void *buffer, size_t size);
+ off_t OnSysSeek(off_t pos, wxSeekMode mode);
+ off_t OnSysTell() const;
+
+ size_t m_currentPos;
};
// ---------------------------------------------------------------------------
// "Filter" streams
// ---------------------------------------------------------------------------
-class WXDLLEXPORT wxFilterInputStream: public wxInputStream {
- public:
- wxFilterInputStream();
- wxFilterInputStream(wxInputStream& stream);
- ~wxFilterInputStream();
+class WXDLLEXPORT wxFilterInputStream: public wxInputStream
+{
+public:
+ wxFilterInputStream();
+ wxFilterInputStream(wxInputStream& stream);
+ ~wxFilterInputStream();
- char Peek() { return m_parent_i_stream->Peek(); }
+ 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(); }
+ size_t GetSize() const { return m_parent_i_stream->GetSize(); }
- protected:
- wxInputStream *m_parent_i_stream;
+protected:
+ wxInputStream *m_parent_i_stream;
};
-class WXDLLEXPORT wxFilterOutputStream: public wxOutputStream {
- public:
- wxFilterOutputStream();
- wxFilterOutputStream(wxOutputStream& stream);
- ~wxFilterOutputStream();
+class WXDLLEXPORT wxFilterOutputStream: public wxOutputStream
+{
+public:
+ wxFilterOutputStream();
+ wxFilterOutputStream(wxOutputStream& stream);
+ ~wxFilterOutputStream();
- wxStreamError LastError() const { return m_parent_o_stream->LastError(); }
- size_t StreamSize() const { return m_parent_o_stream->StreamSize(); }
+ size_t GetSize() const { return m_parent_o_stream->GetSize(); }
- protected:
- wxOutputStream *m_parent_o_stream;
+protected:
+ wxOutputStream *m_parent_o_stream;
};
// ---------------------------------------------------------------------------
// Stream buffer
// ---------------------------------------------------------------------------
-class WXDLLEXPORT wxStreamBuffer {
- public:
- typedef enum {
- read = 0, write, read_write
- } BufMode;
-
- // -----------
- // ctor & dtor
- // -----------
- wxStreamBuffer(wxStreamBase& stream, BufMode mode);
- wxStreamBuffer(BufMode mode);
- wxStreamBuffer(const wxStreamBuffer& buf);
- ~wxStreamBuffer();
-
- // -----------
- // Filtered IO
- // -----------
- size_t Read(void *buffer, size_t size);
- size_t Read(wxStreamBuffer *buf);
- size_t Write(const void *buffer, size_t size);
- size_t Write(wxStreamBuffer *buf);
-
- char GetChar();
- void PutChar(char c);
- off_t Tell() const;
- off_t Seek(off_t pos, wxSeekMode mode);
-
- // --------------
- // Buffer control
- // --------------
- void ResetBuffer();
- void SetBufferIO(char *buffer_start, char *buffer_end);
- void SetBufferIO(size_t bufsize);
- char *GetBufferStart() const { return m_buffer_start; }
- char *GetBufferEnd() const { return m_buffer_end; }
- char *GetBufferPos() const { return m_buffer_pos; }
- 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();
- size_t GetDataLeft();
-
- // --------------
- // Administration
- // --------------
- wxStreamBase *Stream() { return m_stream; }
-
- protected:
- void GetFromBuffer(void *buffer, size_t size);
- void PutToBuffer(const void *buffer, size_t size);
-
- protected:
- char *m_buffer_start, *m_buffer_end, *m_buffer_pos;
- size_t m_buffer_size;
-
- char *m_wback;
- size_t m_wbacksize, m_wbackcur;
-
- bool m_fixed, m_flushable;
-
- wxStreamBase *m_stream;
- BufMode m_mode;
- bool m_destroybuf, m_destroystream;
+class WXDLLEXPORT wxStreamBuffer
+{
+public:
+ typedef enum {
+ read = 0, write, read_write
+ } BufMode;
+
+ wxStreamBuffer(wxStreamBase& stream, BufMode mode);
+ wxStreamBuffer(BufMode mode);
+ wxStreamBuffer(const wxStreamBuffer& buf);
+ ~wxStreamBuffer();
+
+ // Filtered IO
+ size_t Read(void *buffer, size_t size);
+ size_t Read(wxStreamBuffer *buf);
+ size_t Write(const void *buffer, size_t size);
+ size_t Write(wxStreamBuffer *buf);
+
+ char Peek();
+ char GetChar();
+ void PutChar(char c);
+ off_t Tell() const;
+ off_t Seek(off_t pos, wxSeekMode mode);
+
+ // Buffer control
+ void ResetBuffer();
+ void SetBufferIO(char *buffer_start, char *buffer_end);
+ void SetBufferIO(size_t bufsize);
+ char *GetBufferStart() const { return m_buffer_start; }
+ char *GetBufferEnd() const { return m_buffer_end; }
+ char *GetBufferPos() const { return m_buffer_pos; }
+ 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();
+ size_t GetDataLeft();
+
+ // Misc.
+ wxStreamBase *Stream() { return m_stream; }
+
+protected:
+ void GetFromBuffer(void *buffer, size_t size);
+ void PutToBuffer(const void *buffer, size_t size);
+
+ char *m_buffer_start, *m_buffer_end, *m_buffer_pos;
+ size_t m_buffer_size;
+
+ bool m_fixed, m_flushable;
+
+ wxStreamBase *m_stream;
+ BufMode m_mode;
+ bool m_destroybuf, m_destroystream;
};
// ---------------------------------------------------------------------------
// wxBufferedStreams
// ---------------------------------------------------------------------------
-class wxBufferedInputStream: public wxFilterInputStream {
- public:
- wxBufferedInputStream(wxInputStream& stream);
- ~wxBufferedInputStream();
+class WXDLLEXPORT wxBufferedInputStream: public wxFilterInputStream
+{
+public:
+ wxBufferedInputStream(wxInputStream& stream);
+ ~wxBufferedInputStream();
+
+ char Peek();
+ wxInputStream& Read(void *buffer, size_t size);
- wxInputStream& Read(void *buffer, size_t size);
-
- // Position functions
- off_t SeekI(off_t pos, wxSeekMode mode = wxFromStart);
- off_t TellI() const;
+ // Position functions
+ off_t SeekI(off_t pos, wxSeekMode mode = wxFromStart);
+ off_t TellI() const;
- wxStreamBuffer *InputStreamBuffer() const { return m_i_streambuf; }
+ wxStreamBuffer *InputStreamBuffer() const { return m_i_streambuf; }
- protected:
- size_t OnSysRead(void *buffer, size_t bufsize);
- off_t OnSysSeek(off_t seek, wxSeekMode mode);
- off_t OnSysTell() const;
+protected:
+ size_t OnSysRead(void *buffer, size_t bufsize);
+ off_t OnSysSeek(off_t seek, wxSeekMode mode);
+ off_t OnSysTell() const;
- protected:
- wxStreamBuffer *m_i_streambuf;
+ wxStreamBuffer *m_i_streambuf;
};
-class wxBufferedOutputStream: public wxFilterOutputStream {
- public:
- wxBufferedOutputStream(wxOutputStream& stream);
- ~wxBufferedOutputStream();
+class WXDLLEXPORT wxBufferedOutputStream: public wxFilterOutputStream
+{
+public:
+ wxBufferedOutputStream(wxOutputStream& stream);
+ ~wxBufferedOutputStream();
+
+ wxOutputStream& Write(const void *buffer, size_t size);
+
+ // Position functions
+ off_t SeekO(off_t pos, wxSeekMode mode = wxFromStart);
+ off_t TellO() const;
- wxOutputStream& Write(const void *buffer, size_t size);
-
- // Position functions
- off_t SeekO(off_t pos, wxSeekMode mode = wxFromStart);
- off_t TellO() const;
+ void Sync();
- void Sync();
+ size_t GetSize() const;
- wxStreamBuffer *OutputStreamBuffer() const { return m_o_streambuf; }
+ wxStreamBuffer *OutputStreamBuffer() const { return m_o_streambuf; }
- protected:
- size_t OnSysWrite(const void *buffer, size_t bufsize);
- off_t OnSysSeek(off_t seek, wxSeekMode mode);
- off_t OnSysTell() const;
+protected:
+ size_t OnSysWrite(const void *buffer, size_t bufsize);
+ off_t OnSysSeek(off_t seek, wxSeekMode mode);
+ off_t OnSysTell() const;
- protected:
- wxStreamBuffer *m_o_streambuf;
+ wxStreamBuffer *m_o_streambuf;
};
#endif
projects / wxWidgets.git / blobdiff