// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
-#ifndef __WXSTREAM_H__
-#define __WXSTREAM_H__
+#ifndef _WX_WXSTREAM_H__
+#define _WX_WXSTREAM_H__
#ifdef __GNUG__
#pragma interface
#endif
#include <stdio.h>
-#include <wx/object.h>
-#include <wx/string.h>
+#include "wx/object.h"
+#include "wx/string.h"
+#include "wx/filefn.h" // for off_t, wxInvalidOffset and wxSeekMode
-/*
- * wxStream: base classes
- */
+class WXDLLEXPORT wxInputStream;
+class WXDLLEXPORT wxOutputStream;
-typedef enum {
- wxBeginPosition = 0, wxCurrentPosition = 1, wxEndPosition = 2
-} wxWhenceType;
+typedef wxInputStream& (*__wxInputManip)(wxInputStream&);
+typedef wxOutputStream& (*__wxOutputManip)(wxOutputStream&);
-class wxOutputStream;
-class wxInputStream: public wxObject {
- DECLARE_ABSTRACT_CLASS(wxInputStream);
+wxOutputStream& WXDLLEXPORT wxEndL(wxOutputStream& o_stream);
+
+// Disable warnings such as
+// 'wxFilterStream' : inherits 'wxFilterInputStream::Peek' via dominance
+
+#ifdef _MSC_VER
+#pragma warning(disable:4250)
+#endif
+
+// ---------------------------------------------------------------------------
+// Stream buffer
+// ---------------------------------------------------------------------------
+
+class WXDLLEXPORT wxStreamBuffer {
+ public:
+ wxStreamBuffer(wxInputStream& stream);
+ wxStreamBuffer(wxOutputStream& stream);
+ ~wxStreamBuffer();
+
+ void Read(void *buffer, size_t size);
+ void Write(const void *buffer, size_t size);
+ void WriteBack(char c);
+
+ void SetBufferIO(char *buffer_start, char *buffer_end);
+ void SetBufferIO(size_t bufsize);
+ void ResetBuffer();
+
+ void SetBufferPosition(char *buffer_position)
+ { m_buffer_pos = buffer_position; }
+ void SetIntPosition(size_t pos)
+ { m_buffer_pos = m_buffer_start + pos; }
+ char *GetBufferPosition() const { return m_buffer_pos; }
+ size_t GetIntPosition() const { return m_buffer_pos - m_buffer_start; }
+
+ char *GetBufferStart() const { return m_buffer_start; }
+ char *GetBufferEnd() const { return m_buffer_end; }
+ size_t GetBufferSize() const { return m_buffer_size; }
+ size_t GetLastAccess() const { return m_buffer_end - m_buffer_start; }
+
+ protected:
+ char *m_buffer_start, *m_buffer_end, *m_buffer_pos;
+ size_t m_buffer_size;
+
+ wxInputStream *m_istream;
+ wxOutputStream *m_ostream;
+};
+
+// ---------------------------------------------------------------------------
+// wxStream: base classes
+// ---------------------------------------------------------------------------
+
+class WXDLLEXPORT wxInputStream {
public:
wxInputStream();
virtual ~wxInputStream();
- virtual wxInputStream& Read(void *buffer, size_t size) = 0;
+ // IO functions
+ virtual char Peek() { return 0; }
+ virtual char GetC();
+ virtual wxInputStream& Read(void *buffer, size_t size);
wxInputStream& Read(wxOutputStream& stream_out);
- virtual size_t SeekI(int pos, wxWhenceType whence = wxBeginPosition) = 0;
- virtual size_t TellI() const = 0;
+ // Position functions
+ virtual off_t SeekI(off_t pos, wxSeekMode mode = wxFromStart);
+ virtual off_t TellI() const;
+
+ // State functions
+ bool Eof() const { return m_eof; }
+ size_t LastRead() { return m_lastread; }
+ wxStreamBuffer *InputStreamBuffer() { return m_i_streambuf; }
+
+ // 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>>(float& i);
+#if wxUSE_SERIAL
+ wxInputStream& operator>>(wxObject *& obj);
+#endif
+
+ 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:
+ friend class wxStreamBuffer;
+ friend class wxFilterInputStream;
+
+ wxInputStream(wxStreamBuffer *buffer);
- virtual bool Eof() const = 0;
- virtual size_t LastRead() const = 0;
+ virtual size_t DoRead(void *WXUNUSED(buffer), size_t WXUNUSED(size) )
+ { return 0; }
+ virtual off_t DoSeekInput( off_t WXUNUSED(pos), wxSeekMode WXUNUSED(mode) )
+ { return wxInvalidOffset; }
+ virtual off_t DoTellInput() const
+ { return wxInvalidOffset; }
+
+ protected:
+ bool m_eof, m_i_destroybuf;
+ size_t m_lastread;
+ wxStreamBuffer *m_i_streambuf;
};
-class wxOutputStream: public wxObject {
- DECLARE_ABSTRACT_CLASS(wxOutputStream);
+class WXDLLEXPORT wxOutputStream {
public:
wxOutputStream();
virtual ~wxOutputStream();
- virtual wxOutputStream& Write(const void *buffer, size_t size) = 0;
+ virtual wxOutputStream& Write(const void *buffer, size_t size);
wxOutputStream& Write(wxInputStream& stream_in);
- virtual size_t SeekO(int pos, wxWhenceType whence = wxBeginPosition) = 0;
- virtual size_t TellO() const = 0;
+ virtual off_t SeekO(off_t pos, wxSeekMode mode = wxFromStart);
+ virtual off_t TellO() const;
+
+ virtual bool Bad() const { return m_bad; }
+ virtual size_t LastWrite() const { return m_lastwrite; }
+ wxStreamBuffer *OutputStreamBuffer() { return m_o_streambuf; }
+
+ virtual 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
- virtual bool Bad() const = 0;
- virtual size_t LastWrite() const = 0;
+ 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); }
- virtual void Sync() {}
+ protected:
+ friend class wxStreamBuffer;
+ friend class wxFilterOutputStream;
+
+ wxOutputStream(wxStreamBuffer *buffer);
+
+ virtual size_t DoWrite( const void *WXUNUSED(buffer), size_t WXUNUSED(size) )
+ { return 0; }
+ virtual off_t DoSeekOutput( off_t WXUNUSED(pos), wxSeekMode WXUNUSED(mode) )
+ { return wxInvalidOffset; }
+ virtual off_t DoTellOutput() const
+ { return wxInvalidOffset; }
+
+ protected:
+ bool m_bad, m_o_destroybuf;
+ size_t m_lastwrite;
+ wxStreamBuffer *m_o_streambuf;
};
-class wxStream: public wxInputStream, public wxOutputStream {
- DECLARE_ABSTRACT_CLASS(wxStream)
+class WXDLLEXPORT wxStream: public virtual wxInputStream,
+ public virtual wxOutputStream
+{
public:
- wxStream() : wxInputStream(), wxOutputStream() {}
- virtual ~wxStream() {}
+ wxStream();
};
-/*
- * "Filter" streams
- */
+// ---------------------------------------------------------------------------
+// "Filter" streams
+// ---------------------------------------------------------------------------
-class wxFilterInputStream: public wxInputStream {
- DECLARE_CLASS(wxFilterInputStream)
+class WXDLLEXPORT wxFilterInputStream: public virtual wxInputStream {
public:
+ wxFilterInputStream();
wxFilterInputStream(wxInputStream& stream);
- virtual ~wxFilterInputStream();
+ ~wxFilterInputStream();
- virtual wxInputStream& Read(void *buffer, size_t size)
- { return m_parent_i_stream->Read(buffer, size); }
- virtual size_t SeekI(int pos, wxWhenceType whence = wxBeginPosition)
- { return m_parent_i_stream->SeekI(pos, whence); }
+ char Peek() { return m_parent_i_stream->Peek(); }
+
+ bool Eof() const { return m_parent_i_stream->Eof(); }
+ size_t LastRead() const { return m_parent_i_stream->LastRead(); }
+ off_t TellI() const { return m_parent_i_stream->TellI(); }
+
+ protected:
+ size_t DoRead(void *buffer, size_t size);
+ off_t DoSeekInput(off_t pos, wxSeekMode mode);
+ off_t DoTellInput() const;
- virtual bool Eof() const { return m_parent_i_stream->Eof(); }
- virtual size_t LastRead() const { return m_parent_i_stream->LastRead(); }
protected:
wxInputStream *m_parent_i_stream;
};
-class wxFilterOuputStream: pubilc wxOutputStream {
- DECLARE_CLASS(wxFilterOutputStream)
+class WXDLLEXPORT wxFilterOutputStream: public virtual wxOutputStream {
public:
+ wxFilterOutputStream();
wxFilterOutputStream(wxOutputStream& stream);
virtual ~wxFilterOutputStream();
- virtual wxOutputStream& Write(const void *buffer, size_t size)
- { return m_parent_o_stream->Write(buffer, size); }
- virtual size_t SeekO(int pos, wxWhenceType whence = wxBeginPosition)
- { return m_parent_o_stream->SeekO(pos, whence); }
+ bool Bad() const { return m_parent_o_stream->Bad(); }
+ size_t LastWrite() const { return m_parent_o_stream->LastWrite(); }
+ off_t TellO() const { return m_parent_o_stream->TellO(); }
+
+ protected:
+ // The forward is implicitely done by wxStreamBuffer.
- virtual bool Eof() const { return m_parent_o_sream->Eof(); }
- virtual size_t LastRead() const { return m_parent_o_stream->LastRead(); }
+ size_t DoWrite(const void *buffer, size_t size);
+ off_t DoSeekOutput(off_t pos, wxSeekMode mode);
+ off_t DoTellOutput() const;
protected:
wxOutputStream *m_parent_o_stream;
};
+class WXDLLEXPORT wxFilterStream: public wxStream,
+ public virtual wxFilterInputStream,
+ public virtual wxFilterOutputStream {
+ public:
+ wxFilterStream(wxStream& stream);
+ wxFilterStream();
+};
+
+#ifdef _MSC_VER
+#pragma warning(default:4250)
+#endif
+
#endif
projects / wxWidgets.git / blobdiff