#pragma interface
#endif
+#include "wx/defs.h"
+
+#if wxUSE_STREAMS
+
#include <stdio.h>
#include "wx/object.h"
#include "wx/string.h"
WXDLLEXPORT wxOutputStream& wxEndL(wxOutputStream& o_stream);
+// ---------------------------------------------------------------------------
+// wxStream: base classes
+// ---------------------------------------------------------------------------
+
+#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();
+
+ 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(); }
+
+ 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;
+
+ size_t m_lastcount;
+ wxStreamError m_lasterror;
+};
+
+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);
+
+ // 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; }
+
+ // 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);
+#endif
+ 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);
+
+};
+
+class WXDLLEXPORT wxOutputStream: public wxStreamBase {
+ public:
+ wxOutputStream();
+ virtual ~wxOutputStream();
+
+ 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 size_t LastWrite() const { return wxStreamBase::m_lastcount; }
+
+ virtual void Sync();
+
+ wxOutputStream& operator<<(wxInputStream& out) { return Write(out); }
+#if wxUSE_SERIAL
+ wxOutputStream& operator<<(wxObject& obj);
+#endif
+ wxOutputStream& operator<<( __wxOutputManip func) { return func(*this); }
+};
+
+// ---------------------------------------------------------------------------
+// A stream for measuring streamed output
+// ---------------------------------------------------------------------------
+
+class 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;
+
+ protected:
+ size_t m_currentPos;
+};
+
+
+// ---------------------------------------------------------------------------
+// "Filter" streams
+// ---------------------------------------------------------------------------
+
+class WXDLLEXPORT wxFilterInputStream: public wxInputStream {
+ public:
+ wxFilterInputStream();
+ wxFilterInputStream(wxInputStream& stream);
+ ~wxFilterInputStream();
+
+ char Peek() { return m_parent_i_stream->Peek(); }
+
+ size_t GetSize() const { return m_parent_i_stream->GetSize(); }
+
+ protected:
+ wxInputStream *m_parent_i_stream;
+};
+
+class WXDLLEXPORT wxFilterOutputStream: public wxOutputStream {
+ public:
+ wxFilterOutputStream();
+ wxFilterOutputStream(wxOutputStream& stream);
+ ~wxFilterOutputStream();
+
+ size_t GetSize() const { return m_parent_o_stream->GetSize(); }
+
+ protected:
+ wxOutputStream *m_parent_o_stream;
+};
+
// ---------------------------------------------------------------------------
// Stream buffer
// ---------------------------------------------------------------------------
size_t Write(const void *buffer, size_t size);
size_t Write(wxStreamBuffer *buf);
- size_t WriteBack(const char *buffer, size_t size);
- bool WriteBack(char c);
+ char Peek();
char GetChar();
void PutChar(char c);
off_t Tell() const;
wxStreamBase *Stream() { return m_stream; }
protected:
- char *AllocSpaceWBack(size_t needed_size);
- size_t GetWBack(char *buf, size_t bsize);
-
void GetFromBuffer(void *buffer, size_t size);
void PutToBuffer(const void *buffer, size_t size);
};
// ---------------------------------------------------------------------------
-// wxStream: base classes
+// wxBufferedStreams
// ---------------------------------------------------------------------------
-typedef enum {
- wxStream_NOERROR,
- wxStream_EOF
-} wxStreamError;
-
-class WXDLLEXPORT wxStreamBase {
+class wxBufferedInputStream: public wxFilterInputStream {
public:
- wxStreamBase();
- virtual ~wxStreamBase();
+ wxBufferedInputStream(wxInputStream& stream);
+ ~wxBufferedInputStream();
- 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() const;
-
- protected:
- size_t m_lastcount;
- wxStreamError m_lasterror;
-};
-
-class WXDLLEXPORT wxInputStream: public wxStreamBase {
- public:
- wxInputStream();
- wxInputStream(wxStreamBuffer *sbuf);
- virtual ~wxInputStream();
-
- // IO functions
- virtual char Peek();
- char GetC();
+ char Peek();
wxInputStream& Read(void *buffer, size_t size);
- wxInputStream& Read(wxOutputStream& stream_out);
-
+
// Position functions
off_t SeekI(off_t pos, wxSeekMode mode = wxFromStart);
off_t TellI() const;
- // State functions
- wxStreamBuffer *InputStreamBuffer() { return m_i_streambuf; }
- size_t LastRead() { return wxStreamBase::m_lastcount; }
-
- // Operators
- wxInputStream& operator>>(wxOutputStream& out) { return Read(out); }
- wxInputStream& operator>>(wxString& line);
- wxInputStream& operator>>(char& c);
- wxInputStream& operator>>(short& i);
- wxInputStream& operator>>(int& i);
- wxInputStream& operator>>(long& i);
- wxInputStream& operator>>(double& i);
-#if wxUSE_SERIAL
- wxInputStream& operator>>(wxObject *& obj);
-#endif
+ wxStreamBuffer *InputStreamBuffer() const { return m_i_streambuf; }
- wxInputStream& operator>>(float& f) { double d; operator>>((double&)d); f = (float)d; return *this; }
- wxInputStream& operator>>(unsigned char& c) { return operator>>((char&)c); }
- wxInputStream& operator>>(unsigned short& i) { return operator>>((short&)i); }
- wxInputStream& operator>>(unsigned int& i) { return operator>>((int&)i); }
- wxInputStream& operator>>(unsigned long& i) { return operator>>((long&)i); }
- wxInputStream& operator>>( __wxInputManip func) { return func(*this); }
+ protected:
+ size_t OnSysRead(void *buffer, size_t bufsize);
+ off_t OnSysSeek(off_t seek, wxSeekMode mode);
+ off_t OnSysTell() const;
protected:
- bool m_i_destroybuf;
wxStreamBuffer *m_i_streambuf;
};
-class WXDLLEXPORT wxOutputStream: public wxStreamBase {
+class wxBufferedOutputStream: public wxFilterOutputStream {
public:
- wxOutputStream();
- wxOutputStream(wxStreamBuffer *sbuf);
- virtual ~wxOutputStream();
+ wxBufferedOutputStream(wxOutputStream& stream);
+ ~wxBufferedOutputStream();
wxOutputStream& Write(const void *buffer, size_t size);
- wxOutputStream& Write(wxInputStream& stream_in);
-
+
+ // Position functions
off_t SeekO(off_t pos, wxSeekMode mode = wxFromStart);
off_t TellO() const;
- size_t LastWrite() const { return wxStreamBase::m_lastcount; }
- wxStreamBuffer *OutputStreamBuffer() { return m_o_streambuf; }
-
void Sync();
- wxOutputStream& operator<<(wxInputStream& out) { return Write(out); }
- wxOutputStream& operator<<(const char *string);
- wxOutputStream& operator<<(wxString& string);
- wxOutputStream& operator<<(char c);
- wxOutputStream& operator<<(short i);
- wxOutputStream& operator<<(int i);
- wxOutputStream& operator<<(long i);
- wxOutputStream& operator<<(double f);
-#if wxUSE_SERIAL
- wxOutputStream& operator<<(wxObject& obj);
-#endif
-
- wxOutputStream& operator<<(float f) { return operator<<((double)f); }
- wxOutputStream& operator<<(unsigned char c) { return operator<<((char)c); }
- wxOutputStream& operator<<(unsigned short i) { return operator<<((short)i); }
- wxOutputStream& operator<<(unsigned int i) { return operator<<((int)i); }
- wxOutputStream& operator<<(unsigned long i) { return operator<<((long)i); }
- wxOutputStream& operator<<( __wxOutputManip func) { return func(*this); }
+ wxStreamBuffer *OutputStreamBuffer() const { return m_o_streambuf; }
protected:
- bool m_o_destroybuf;
- wxStreamBuffer *m_o_streambuf;
-};
-
-// ---------------------------------------------------------------------------
-// "Filter" streams
-// ---------------------------------------------------------------------------
-
-class WXDLLEXPORT wxFilterInputStream: public wxInputStream {
- public:
- wxFilterInputStream();
- wxFilterInputStream(wxInputStream& stream);
- ~wxFilterInputStream();
-
- 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 OnSysWrite(const void *buffer, size_t bufsize);
+ off_t OnSysSeek(off_t seek, wxSeekMode mode);
+ off_t OnSysTell() const;
protected:
- wxInputStream *m_parent_i_stream;
+ wxStreamBuffer *m_o_streambuf;
};
-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(); }
-
- protected:
- wxOutputStream *m_parent_o_stream;
-};
+#endif
+ // wxUSE_STREAMS
#endif
+ // _WX_WXSTREAM_H__
projects / wxWidgets.git / blobdiff