wxWidgets/include/wx/wfstream.h
Michael Wetherell e126517457 Add wxTempFileOutputStream
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@32796 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2005-03-13 16:20:51 +00:00

205 lines
5.3 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Name: wx/wfstream.h
// Purpose: File stream classes
// Author: Guilhem Lavaux
// Modified by:
// Created: 11/07/98
// RCS-ID: $Id$
// Copyright: (c) Guilhem Lavaux
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_WXFSTREAM_H__
#define _WX_WXFSTREAM_H__
#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma interface "wfstream.h"
#endif
#include "wx/defs.h"
#if wxUSE_STREAMS
#include "wx/object.h"
#include "wx/string.h"
#include "wx/stream.h"
#include "wx/file.h"
#include "wx/ffile.h"
#if wxUSE_FILE
// ----------------------------------------------------------------------------
// wxFileStream using wxFile
// ----------------------------------------------------------------------------
class WXDLLIMPEXP_BASE wxFileInputStream : public wxInputStream
{
public:
wxFileInputStream(const wxString& ifileName);
wxFileInputStream(wxFile& file);
wxFileInputStream(int fd);
~wxFileInputStream();
wxFileOffset GetLength() const;
bool Ok() const { return m_file->IsOpened(); }
bool IsSeekable() const { return m_file->GetKind() == wxFILE_KIND_DISK; }
protected:
wxFileInputStream();
size_t OnSysRead(void *buffer, size_t size);
wxFileOffset OnSysSeek(wxFileOffset pos, wxSeekMode mode);
wxFileOffset OnSysTell() const;
protected:
wxFile *m_file;
bool m_file_destroy;
DECLARE_NO_COPY_CLASS(wxFileInputStream)
};
class WXDLLIMPEXP_BASE wxFileOutputStream : public wxOutputStream
{
public:
wxFileOutputStream(const wxString& fileName);
wxFileOutputStream(wxFile& file);
wxFileOutputStream(int fd);
virtual ~wxFileOutputStream();
void Sync();
bool Close() { return m_file_destroy ? m_file->Close() : true; }
wxFileOffset GetLength() const;
bool Ok() const { return m_file->IsOpened(); }
bool IsSeekable() const { return m_file->GetKind() == wxFILE_KIND_DISK; }
protected:
wxFileOutputStream();
size_t OnSysWrite(const void *buffer, size_t size);
wxFileOffset OnSysSeek(wxFileOffset pos, wxSeekMode mode);
wxFileOffset OnSysTell() const;
protected:
wxFile *m_file;
bool m_file_destroy;
DECLARE_NO_COPY_CLASS(wxFileOutputStream)
};
class WXDLLIMPEXP_BASE wxTempFileOutputStream : public wxOutputStream
{
public:
wxTempFileOutputStream(const wxString& fileName);
virtual ~wxTempFileOutputStream();
bool Close() { return Commit(); }
virtual bool Commit() { return m_file->Commit(); }
virtual void Discard() { m_file->Discard(); }
wxFileOffset GetLength() const { return m_file->Length(); }
bool IsSeekable() const { return true; }
protected:
size_t OnSysWrite(const void *buffer, size_t size);
wxFileOffset OnSysSeek(wxFileOffset pos, wxSeekMode mode)
{ return m_file->Seek(pos, mode); }
wxFileOffset OnSysTell() const { return m_file->Tell(); }
private:
wxTempFile *m_file;
DECLARE_NO_COPY_CLASS(wxTempFileOutputStream)
};
class WXDLLIMPEXP_BASE wxFileStream : public wxFileInputStream,
public wxFileOutputStream
{
public:
wxFileStream(const wxString& fileName);
private:
DECLARE_NO_COPY_CLASS(wxFileStream)
};
#endif //wxUSE_FILE
#if wxUSE_FFILE
// ----------------------------------------------------------------------------
// wxFFileStream using wxFFile
// ----------------------------------------------------------------------------
class WXDLLIMPEXP_BASE wxFFileInputStream : public wxInputStream
{
public:
wxFFileInputStream(const wxString& fileName, const wxChar *mode = _T("rb"));
wxFFileInputStream(wxFFile& file);
wxFFileInputStream(FILE *file);
~wxFFileInputStream();
wxFileOffset GetLength() const;
bool Ok() const { return m_file->IsOpened(); }
bool IsSeekable() const { return m_file->GetKind() == wxFILE_KIND_DISK; }
protected:
wxFFileInputStream();
size_t OnSysRead(void *buffer, size_t size);
wxFileOffset OnSysSeek(wxFileOffset pos, wxSeekMode mode);
wxFileOffset OnSysTell() const;
protected:
wxFFile *m_file;
bool m_file_destroy;
DECLARE_NO_COPY_CLASS(wxFFileInputStream)
};
class WXDLLIMPEXP_BASE wxFFileOutputStream : public wxOutputStream
{
public:
wxFFileOutputStream(const wxString& fileName, const wxChar *mode = _T("w+b"));
wxFFileOutputStream(wxFFile& file);
wxFFileOutputStream(FILE *file);
virtual ~wxFFileOutputStream();
void Sync();
bool Close() { return m_file_destroy ? m_file->Close() : true; }
wxFileOffset GetLength() const;
bool Ok() const { return m_file->IsOpened(); }
bool IsSeekable() const { return m_file->GetKind() == wxFILE_KIND_DISK; }
protected:
wxFFileOutputStream();
size_t OnSysWrite(const void *buffer, size_t size);
wxFileOffset OnSysSeek(wxFileOffset pos, wxSeekMode mode);
wxFileOffset OnSysTell() const;
protected:
wxFFile *m_file;
bool m_file_destroy;
DECLARE_NO_COPY_CLASS(wxFFileOutputStream)
};
class WXDLLIMPEXP_BASE wxFFileStream : public wxFFileInputStream,
public wxFFileOutputStream
{
public:
wxFFileStream(const wxString& fileName);
private:
DECLARE_NO_COPY_CLASS(wxFFileStream)
};
#endif //wxUSE_FFILE
#endif // wxUSE_STREAMS
#endif // _WX_WXFSTREAM_H__