+/////////////////////////////////////////////////////////////////////////////
+// Name: stream.h
+// Purpose: "wxWindows stream" base classes
+// Author: Guilhem Lavaux
+// Modified by:
+// Created: 11/07/98
+// RCS-ID: $Id$
+// Copyright: (c) Guilhem Lavaux
+// Licence: wxWindows license
+/////////////////////////////////////////////////////////////////////////////
+
+#ifndef __WXSTREAM_H__
+#define __WXSTREAM_H__
+
+#ifdef __GNUG__
+#pragma interface
+#endif
+
+#include <stdio.h>
+#include <wx/object.h>
+#include <wx/string.h>
+
+/*
+ * wxStream: base classes
+ */
+
+typedef enum {
+ wxBeginPosition = 0, wxCurrentPosition = 1, wxEndPosition = 2
+} wxWhenceType;
+
+class wxOutputStream;
+class wxInputStream: public wxObject {
+ DECLARE_ABSTRACT_CLASS(wxInputStream);
+ public:
+ wxInputStream();
+ virtual ~wxInputStream();
+
+ virtual wxInputStream& Read(void *buffer, size_t size) = 0;
+ wxInputStream& Read(wxOutputStream& stream_out);
+
+ virtual size_t SeekI(int pos, wxWhenceType whence = wxBeginPosition) = 0;
+ virtual size_t TellI() const = 0;
+
+ virtual bool Eof() const = 0;
+ virtual size_t LastRead() const = 0;
+};
+
+class wxOutputStream: public wxObject {
+ DECLARE_ABSTRACT_CLASS(wxOutputStream);
+ public:
+ wxOutputStream();
+ virtual ~wxOutputStream();
+
+ virtual wxOutputStream& Write(const void *buffer, size_t size) = 0;
+ wxOutputStream& Write(wxInputStream& stream_in);
+
+ virtual size_t SeekO(int pos, wxWhenceType whence = wxBeginPosition) = 0;
+ virtual size_t TellO() const = 0;
+
+ virtual bool Bad() const = 0;
+ virtual size_t LastWrite() const = 0;
+
+ virtual void Sync() {}
+};
+
+class wxStream: public wxInputStream, public wxOutputStream {
+ DECLARE_ABSTRACT_CLASS(wxStream)
+ public:
+ wxStream() : wxInputStream(), wxOutputStream() {}
+ virtual ~wxStream() {}
+};
+
+/*
+ * "Filter" streams
+ */
+
+class wxFilterInputStream: public wxInputStream {
+ DECLARE_CLASS(wxFilterInputStream)
+ public:
+ wxFilterInputStream(wxInputStream& stream);
+ virtual ~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); }
+
+ 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)
+ public:
+ 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); }
+
+ virtual bool Eof() const { return m_parent_o_sream->Eof(); }
+ virtual size_t LastRead() const { return m_parent_o_stream->LastRead(); }
+
+ protected:
+ wxOutputStream *m_parent_o_stream;
+};
+
+#endif