* New wxStreams (to be documented), new classes: wxBufferedStreams,
wxTextStreams git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@2962 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
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@@ -34,85 +34,6 @@ typedef wxOutputStream& (*__wxOutputManip)(wxOutputStream&);
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WXDLLEXPORT wxOutputStream& wxEndL(wxOutputStream& o_stream);
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// ---------------------------------------------------------------------------
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// Stream buffer
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// ---------------------------------------------------------------------------
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class WXDLLEXPORT wxStreamBuffer {
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public:
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typedef enum {
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read = 0, write, read_write
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} BufMode;
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// -----------
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// ctor & dtor
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// -----------
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wxStreamBuffer(wxStreamBase& stream, BufMode mode);
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wxStreamBuffer(BufMode mode);
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wxStreamBuffer(const wxStreamBuffer& buf);
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~wxStreamBuffer();
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// -----------
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// Filtered IO
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// -----------
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size_t Read(void *buffer, size_t size);
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size_t Read(wxStreamBuffer *buf);
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size_t Write(const void *buffer, size_t size);
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size_t Write(wxStreamBuffer *buf);
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size_t WriteBack(const char *buffer, size_t size);
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bool WriteBack(char c);
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char GetChar();
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void PutChar(char c);
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off_t Tell() const;
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off_t Seek(off_t pos, wxSeekMode mode);
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// --------------
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// Buffer control
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// --------------
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void ResetBuffer();
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void SetBufferIO(char *buffer_start, char *buffer_end);
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void SetBufferIO(size_t bufsize);
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char *GetBufferStart() const { return m_buffer_start; }
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char *GetBufferEnd() const { return m_buffer_end; }
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char *GetBufferPos() const { return m_buffer_pos; }
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off_t GetIntPosition() const { return m_buffer_pos-m_buffer_start; }
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void SetIntPosition(off_t pos) { m_buffer_pos = m_buffer_start+pos; }
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size_t GetLastAccess() const { return m_buffer_end-m_buffer_start; }
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void Fixed(bool fixed) { m_fixed = fixed; }
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void Flushable(bool f) { m_flushable = f; }
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bool FlushBuffer();
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bool FillBuffer();
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size_t GetDataLeft();
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// --------------
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// Administration
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// --------------
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wxStreamBase *Stream() { return m_stream; }
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protected:
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char *AllocSpaceWBack(size_t needed_size);
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size_t GetWBack(char *buf, size_t bsize);
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void GetFromBuffer(void *buffer, size_t size);
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void PutToBuffer(const void *buffer, size_t size);
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protected:
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char *m_buffer_start, *m_buffer_end, *m_buffer_pos;
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size_t m_buffer_size;
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char *m_wback;
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size_t m_wbacksize, m_wbackcur;
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bool m_fixed, m_flushable;
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wxStreamBase *m_stream;
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BufMode m_mode;
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bool m_destroybuf, m_destroystream;
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};
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// ---------------------------------------------------------------------------
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// wxStream: base classes
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// ---------------------------------------------------------------------------
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@@ -138,7 +59,6 @@ class WXDLLEXPORT wxStreamBase {
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virtual size_t StreamSize() const { return ~((size_t)0); }
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protected:
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friend class wxStreamBuffer;
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virtual size_t OnSysRead(void *buffer, size_t bufsize);
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virtual size_t OnSysWrite(const void *buffer, size_t bufsize);
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@@ -146,6 +66,8 @@ class WXDLLEXPORT wxStreamBase {
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virtual off_t OnSysTell() const;
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protected:
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friend class wxStreamBuffer;
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size_t m_lastcount;
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wxStreamError m_lasterror;
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};
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@@ -153,7 +75,6 @@ class WXDLLEXPORT wxStreamBase {
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class WXDLLEXPORT wxInputStream: public wxStreamBase {
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public:
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wxInputStream();
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wxInputStream(wxStreamBuffer *sbuf);
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virtual ~wxInputStream();
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// IO functions
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@@ -161,78 +82,56 @@ class WXDLLEXPORT wxInputStream: public wxStreamBase {
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char GetC();
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virtual wxInputStream& Read(void *buffer, size_t size);
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wxInputStream& Read(wxOutputStream& stream_out);
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wxString ReadLine();
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// Position functions
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off_t SeekI(off_t pos, wxSeekMode mode = wxFromStart);
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off_t TellI() const;
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virtual off_t SeekI(off_t pos, wxSeekMode mode = wxFromStart);
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virtual off_t TellI() const;
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// State functions
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wxStreamBuffer *InputStreamBuffer() { return m_i_streambuf; }
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size_t LastRead() { return wxStreamBase::m_lastcount; }
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virtual size_t LastRead() { return wxStreamBase::m_lastcount; }
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// Ungetch
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size_t Ungetch(void *buffer, size_t size);
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bool Ungetch(char c);
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// Operators
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wxInputStream& operator>>(wxOutputStream& out) { return Read(out); }
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wxInputStream& operator>>(wxString& line);
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wxInputStream& operator>>(char& c);
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wxInputStream& operator>>(signed short& i);
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wxInputStream& operator>>(signed int& i);
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wxInputStream& operator>>(signed long& i);
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wxInputStream& operator>>(unsigned char& c);
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wxInputStream& operator>>(unsigned short& i);
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wxInputStream& operator>>(unsigned int& i);
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wxInputStream& operator>>(unsigned long& i);
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wxInputStream& operator>>(double& i);
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wxInputStream& operator>>(float& f) { double d; operator>>((double&)d); f = (float)d; return *this; }
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#if wxUSE_SERIAL
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wxInputStream& operator>>(wxObject *& obj);
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#endif
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wxInputStream& operator>>( __wxInputManip func) { return func(*this); }
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protected:
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bool m_i_destroybuf;
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wxStreamBuffer *m_i_streambuf;
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// Ungetch managers
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char *m_wback;
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size_t m_wbacksize;
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size_t m_wbackcur;
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char *AllocSpaceWBack(size_t needed_size);
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size_t GetWBack(char *buf, size_t bsize);
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};
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class WXDLLEXPORT wxOutputStream: public wxStreamBase {
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public:
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wxOutputStream();
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wxOutputStream(wxStreamBuffer *sbuf);
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virtual ~wxOutputStream();
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virtual wxOutputStream& Write(const void *buffer, size_t size);
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wxOutputStream& Write(wxInputStream& stream_in);
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void WriteLine(const wxString& line);
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off_t SeekO(off_t pos, wxSeekMode mode = wxFromStart);
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off_t TellO() const;
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virtual off_t SeekO(off_t pos, wxSeekMode mode = wxFromStart);
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virtual off_t TellO() const;
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size_t LastWrite() const { return wxStreamBase::m_lastcount; }
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wxStreamBuffer *OutputStreamBuffer() { return m_o_streambuf; }
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virtual size_t LastWrite() const { return wxStreamBase::m_lastcount; }
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void Sync();
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virtual void Sync();
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wxOutputStream& operator<<(wxInputStream& out) { return Write(out); }
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wxOutputStream& operator<<(const char *string);
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wxOutputStream& operator<<(wxString& string);
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wxOutputStream& operator<<(char c);
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wxOutputStream& operator<<(signed short i);
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wxOutputStream& operator<<(signed int i);
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wxOutputStream& operator<<(signed long i);
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wxOutputStream& operator<<(unsigned char c);
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wxOutputStream& operator<<(unsigned short i);
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wxOutputStream& operator<<(unsigned int i);
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wxOutputStream& operator<<(unsigned long i);
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wxOutputStream& operator<<(double f);
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wxOutputStream& operator<<(float f) { return operator<<((double)f); }
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#if wxUSE_SERIAL
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wxOutputStream& operator<<(wxObject& obj);
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#endif
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wxOutputStream& operator<<( __wxOutputManip func) { return func(*this); }
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protected:
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bool m_o_destroybuf;
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wxStreamBuffer *m_o_streambuf;
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};
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// ---------------------------------------------------------------------------
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@@ -267,6 +166,130 @@ class WXDLLEXPORT wxFilterOutputStream: public wxOutputStream {
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wxOutputStream *m_parent_o_stream;
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};
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// ---------------------------------------------------------------------------
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// Stream buffer
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// ---------------------------------------------------------------------------
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class WXDLLEXPORT wxStreamBuffer {
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public:
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typedef enum {
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read = 0, write, read_write
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} BufMode;
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// -----------
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// ctor & dtor
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// -----------
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wxStreamBuffer(wxStreamBase& stream, BufMode mode);
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wxStreamBuffer(BufMode mode);
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wxStreamBuffer(const wxStreamBuffer& buf);
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~wxStreamBuffer();
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// -----------
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// Filtered IO
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// -----------
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size_t Read(void *buffer, size_t size);
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size_t Read(wxStreamBuffer *buf);
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size_t Write(const void *buffer, size_t size);
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size_t Write(wxStreamBuffer *buf);
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char GetChar();
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void PutChar(char c);
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off_t Tell() const;
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off_t Seek(off_t pos, wxSeekMode mode);
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// --------------
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// Buffer control
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// --------------
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void ResetBuffer();
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void SetBufferIO(char *buffer_start, char *buffer_end);
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void SetBufferIO(size_t bufsize);
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char *GetBufferStart() const { return m_buffer_start; }
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char *GetBufferEnd() const { return m_buffer_end; }
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char *GetBufferPos() const { return m_buffer_pos; }
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off_t GetIntPosition() const { return m_buffer_pos-m_buffer_start; }
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void SetIntPosition(off_t pos) { m_buffer_pos = m_buffer_start+pos; }
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size_t GetLastAccess() const { return m_buffer_end-m_buffer_start; }
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void Fixed(bool fixed) { m_fixed = fixed; }
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void Flushable(bool f) { m_flushable = f; }
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bool FlushBuffer();
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bool FillBuffer();
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size_t GetDataLeft();
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// --------------
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// Administration
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// --------------
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wxStreamBase *Stream() { return m_stream; }
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protected:
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void GetFromBuffer(void *buffer, size_t size);
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void PutToBuffer(const void *buffer, size_t size);
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protected:
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char *m_buffer_start, *m_buffer_end, *m_buffer_pos;
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size_t m_buffer_size;
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char *m_wback;
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size_t m_wbacksize, m_wbackcur;
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bool m_fixed, m_flushable;
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wxStreamBase *m_stream;
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BufMode m_mode;
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bool m_destroybuf, m_destroystream;
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};
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// ---------------------------------------------------------------------------
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// wxBufferedStreams
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// ---------------------------------------------------------------------------
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class wxBufferedInputStream: public wxFilterInputStream {
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public:
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wxBufferedInputStream(wxInputStream& stream);
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~wxBufferedInputStream();
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wxInputStream& Read(void *buffer, size_t size);
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// Position functions
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off_t SeekI(off_t pos, wxSeekMode mode = wxFromStart);
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off_t TellI() const;
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wxStreamBuffer *InputStreamBuffer() const { return m_i_streambuf; }
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protected:
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size_t OnSysRead(void *buffer, size_t bufsize);
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off_t OnSysSeek(off_t seek, wxSeekMode mode);
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off_t OnSysTell() const;
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protected:
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wxStreamBuffer *m_i_streambuf;
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};
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class wxBufferedOutputStream: public wxFilterOutputStream {
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public:
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wxBufferedOutputStream(wxOutputStream& stream);
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~wxBufferedOutputStream();
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wxOutputStream& Write(const void *buffer, size_t size);
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// Position functions
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off_t SeekO(off_t pos, wxSeekMode mode = wxFromStart);
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off_t TellO() const;
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void Sync();
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wxStreamBuffer *OutputStreamBuffer() const { return m_o_streambuf; }
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protected:
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size_t OnSysWrite(const void *buffer, size_t bufsize);
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off_t OnSysSeek(off_t seek, wxSeekMode mode);
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off_t OnSysTell() const;
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protected:
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wxStreamBuffer *m_o_streambuf;
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};
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#endif
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// wxUSE_STREAMS
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