X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/7513f9ffc5f8f6e75d55cc32cafe5ea6a111fcfc..8cb9f0d0f82650b707adc39823a73531d080ffec:/include/wx/stream.h diff --git a/include/wx/stream.h b/include/wx/stream.h index c2f6a3d45c..2e57b4ce7b 100644 --- a/include/wx/stream.h +++ b/include/wx/stream.h @@ -38,278 +38,288 @@ WXDLLEXPORT wxOutputStream& wxEndL(wxOutputStream& o_stream); // wxStream: base classes // --------------------------------------------------------------------------- +typedef enum +{ + wxSTREAM_NO_ERROR = 0, + wxSTREAM_NO_ERR = wxSTREAM_NO_ERROR, + wxSTREAM_NOERROR = wxSTREAM_NO_ERROR, + + wxSTREAM_EOF, + + wxSTREAM_WRITE_ERROR, + wxSTREAM_WRITE_ERR = wxSTREAM_WRITE_ERROR, + + wxSTREAM_READ_ERROR, + wxSTREAM_READ_ERR = wxSTREAM_READ_ERROR + +} wxStreamError; + +// 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 - -typedef enum { - wxStream_NOERROR = 0, - wxStream_EOF, - wxStream_WRITE_ERR, - wxStream_READ_ERR -} wxStreamError; -class WXDLLEXPORT wxStreamBase { - public: - wxStreamBase(); - virtual ~wxStreamBase(); +class WXDLLEXPORT wxStreamBase +{ +public: + wxStreamBase(); + virtual ~wxStreamBase(); - bool operator!() const { return (LastError() != wxSTREAM_NOERROR); } - wxStreamError LastError() const { return m_lasterror; } - virtual size_t GetSize() const { return ~((size_t)0); } - size_t StreamSize() const { return GetSize(); } + // 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; } - protected: + virtual size_t GetSize() const { return ~((size_t)0); } + size_t StreamSize() const { return GetSize(); } - 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; +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; - protected: - friend class wxStreamBuffer; + friend class wxStreamBuffer; - size_t m_lastcount; - wxStreamError m_lasterror; + 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(); - // IO functions - virtual char Peek(); - char GetC(); - virtual wxInputStream& Read(void *buffer, size_t size); - wxInputStream& Read(wxOutputStream& stream_out); + // is the stream at EOF? + virtual bool Eof() const; - // Position functions - virtual off_t SeekI(off_t pos, wxSeekMode mode = wxFromStart); - virtual off_t TellI() const; + // IO functions + virtual char Peek(); + char GetC(); + virtual wxInputStream& Read(void *buffer, size_t size); + wxInputStream& Read(wxOutputStream& stream_out); - // State functions - virtual size_t LastRead() { return wxStreamBase::m_lastcount; } + // Position functions + virtual off_t SeekI(off_t pos, wxSeekMode mode = wxFromStart); + virtual off_t TellI() const; - // Ungetch - size_t Ungetch(const void *buffer, size_t size); - bool Ungetch(char c); + // State functions + virtual size_t LastRead() { return wxStreamBase::m_lastcount; } - // Operators - wxInputStream& operator>>(wxOutputStream& out) { return Read(out); } + // Ungetch + size_t Ungetch(const void *buffer, size_t size); + bool Ungetch(char c); + + // 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); } - - protected: - // Ungetch managers - char *m_wback; - size_t m_wbacksize; - size_t m_wbackcur; + wxInputStream& operator>>( __wxInputManip func) { return func(*this); } - 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(); - void PutC(char c); - 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 wxCountingOutputStream: public wxOutputStream { - public: - wxCountingOutputStream(); +class WXDLLEXPORT wxCountingOutputStream: public wxOutputStream +{ +public: + wxCountingOutputStream(); - size_t GetSize() const; - bool Ok() const { return TRUE; } + size_t GetSize() const; + bool Ok() const { return TRUE; } - protected: +protected: + size_t OnSysWrite(const void *buffer, size_t size); + off_t OnSysSeek(off_t pos, wxSeekMode mode); + off_t OnSysTell() const; - size_t OnSysWrite(const void *buffer, size_t size); - off_t OnSysSeek(off_t pos, wxSeekMode mode); - off_t OnSysTell() const; - - protected: - size_t m_currentPos; + 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(); } - size_t GetSize() const { return m_parent_i_stream->GetSize(); } + 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(); - size_t GetSize() const { return m_parent_o_stream->GetSize(); } + 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 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(); - - // -------------- - // 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; - - 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); - - // Position functions - off_t SeekI(off_t pos, wxSeekMode mode = wxFromStart); - off_t TellI() const; + char Peek(); + wxInputStream& Read(void *buffer, size_t size); - wxStreamBuffer *InputStreamBuffer() const { return m_i_streambuf; } + // Position functions + off_t SeekI(off_t pos, wxSeekMode mode = wxFromStart); + off_t TellI() const; - protected: - size_t OnSysRead(void *buffer, size_t bufsize); - off_t OnSysSeek(off_t seek, wxSeekMode mode); - off_t OnSysTell() const; + wxStreamBuffer *InputStreamBuffer() const { return m_i_streambuf; } - protected: - wxStreamBuffer *m_i_streambuf; +protected: + size_t OnSysRead(void *buffer, size_t bufsize); + off_t OnSysSeek(off_t seek, wxSeekMode mode); + off_t OnSysTell() const; + + 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