1998-07-12 15:24:52 +00:00
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/////////////////////////////////////////////////////////////////////////////
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2000-11-23 16:26:12 +00:00
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// Name: wx/mstream.h
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1998-07-12 15:24:52 +00:00
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// Purpose: Memory stream classes
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// Author: Guilhem Lavaux
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// Modified by:
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// Created: 11/07/98
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// Copyright: (c) Guilhem Lavaux
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2004-05-23 20:53:33 +00:00
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// Licence: wxWindows licence
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1998-07-12 15:24:52 +00:00
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/////////////////////////////////////////////////////////////////////////////
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2000-09-12 15:15:44 +00:00
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1998-08-15 00:23:28 +00:00
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#ifndef _WX_WXMMSTREAM_H__
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#define _WX_WXMMSTREAM_H__
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1998-07-12 15:24:52 +00:00
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2005-03-16 16:18:31 +00:00
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#include "wx/defs.h"
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1998-07-12 15:24:52 +00:00
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1999-06-15 20:21:59 +00:00
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#if wxUSE_STREAMS
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2005-03-16 16:18:31 +00:00
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#include "wx/stream.h"
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2007-07-09 10:09:52 +00:00
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class WXDLLIMPEXP_FWD_BASE wxMemoryOutputStream;
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2005-04-02 22:37:58 +00:00
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2003-07-02 01:59:24 +00:00
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class WXDLLIMPEXP_BASE wxMemoryInputStream : public wxInputStream
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2000-09-12 15:15:44 +00:00
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{
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public:
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2000-11-23 16:26:12 +00:00
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wxMemoryInputStream(const void *data, size_t length);
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2005-04-02 22:37:58 +00:00
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wxMemoryInputStream(const wxMemoryOutputStream& stream);
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2007-03-17 15:28:28 +00:00
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wxMemoryInputStream(wxInputStream& stream,
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wxFileOffset lenFile = wxInvalidOffset)
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{
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InitFromStream(stream, lenFile);
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}
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wxMemoryInputStream(wxMemoryInputStream& stream)
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2008-05-15 17:24:48 +00:00
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: wxInputStream()
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2007-03-17 15:28:28 +00:00
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{
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InitFromStream(stream, wxInvalidOffset);
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}
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2000-09-12 15:15:44 +00:00
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virtual ~wxMemoryInputStream();
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2014-03-30 00:02:23 +00:00
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virtual wxFileOffset GetLength() const wxOVERRIDE { return m_length; }
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virtual bool IsSeekable() const wxOVERRIDE { return true; }
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2000-09-12 15:15:44 +00:00
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2014-03-30 00:02:23 +00:00
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virtual char Peek() wxOVERRIDE;
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virtual bool CanRead() const wxOVERRIDE;
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1998-07-14 12:06:50 +00:00
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2000-11-23 16:26:12 +00:00
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wxStreamBuffer *GetInputStreamBuffer() const { return m_i_streambuf; }
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2000-09-12 15:15:44 +00:00
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protected:
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wxStreamBuffer *m_i_streambuf;
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1999-07-19 17:34:59 +00:00
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2014-03-30 00:02:23 +00:00
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size_t OnSysRead(void *buffer, size_t nbytes) wxOVERRIDE;
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wxFileOffset OnSysSeek(wxFileOffset pos, wxSeekMode mode) wxOVERRIDE;
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wxFileOffset OnSysTell() const wxOVERRIDE;
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1999-07-15 18:08:57 +00:00
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2000-09-12 15:15:44 +00:00
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private:
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2007-03-17 15:28:28 +00:00
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// common part of ctors taking wxInputStream
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void InitFromStream(wxInputStream& stream, wxFileOffset lenFile);
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2000-09-12 15:15:44 +00:00
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size_t m_length;
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2003-01-02 23:38:11 +00:00
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2007-03-17 15:28:28 +00:00
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// copy ctor is implemented above: it copies the other stream in this one
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2007-04-14 23:35:13 +00:00
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DECLARE_ABSTRACT_CLASS(wxMemoryInputStream)
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2009-02-08 11:45:59 +00:00
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wxDECLARE_NO_ASSIGN_CLASS(wxMemoryInputStream);
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1998-07-12 15:24:52 +00:00
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};
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2003-07-02 01:59:24 +00:00
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class WXDLLIMPEXP_BASE wxMemoryOutputStream : public wxOutputStream
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2000-09-12 15:15:44 +00:00
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{
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public:
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2000-11-23 16:26:12 +00:00
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// if data is !NULL it must be allocated with malloc()
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wxMemoryOutputStream(void *data = NULL, size_t length = 0);
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2000-09-12 15:15:44 +00:00
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virtual ~wxMemoryOutputStream();
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2014-03-30 00:02:23 +00:00
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virtual wxFileOffset GetLength() const wxOVERRIDE { return m_o_streambuf->GetLastAccess(); }
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virtual bool IsSeekable() const wxOVERRIDE { return true; }
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1999-07-19 17:34:59 +00:00
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2000-11-23 16:26:12 +00:00
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size_t CopyTo(void *buffer, size_t len) const;
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1999-07-15 18:08:57 +00:00
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2000-11-23 16:26:12 +00:00
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wxStreamBuffer *GetOutputStreamBuffer() const { return m_o_streambuf; }
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2000-09-12 15:15:44 +00:00
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protected:
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wxStreamBuffer *m_o_streambuf;
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1999-07-15 18:08:57 +00:00
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2000-09-12 15:15:44 +00:00
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protected:
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2014-03-30 00:02:23 +00:00
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size_t OnSysWrite(const void *buffer, size_t nbytes) wxOVERRIDE;
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wxFileOffset OnSysSeek(wxFileOffset pos, wxSeekMode mode) wxOVERRIDE;
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wxFileOffset OnSysTell() const wxOVERRIDE;
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2003-01-02 23:38:11 +00:00
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2007-04-14 23:35:13 +00:00
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DECLARE_DYNAMIC_CLASS(wxMemoryOutputStream)
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2009-02-08 11:45:59 +00:00
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wxDECLARE_NO_COPY_CLASS(wxMemoryOutputStream);
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1998-07-12 15:24:52 +00:00
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};
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#endif
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1999-06-15 20:21:59 +00:00
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// wxUSE_STREAMS
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#endif
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1999-07-09 15:30:31 +00:00
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// _WX_WXMMSTREAM_H__
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