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CodeBlocksPortable/wxWidgets-3.0.5/include/wx/wfstream.h

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/////////////////////////////////////////////////////////////////////////////
// Name: wx/wfstream.h
// Purpose: File stream classes
// Author: Guilhem Lavaux
// Modified by:
// Created: 11/07/98
// Copyright: (c) Guilhem Lavaux
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_WXFSTREAM_H__
#define _WX_WXFSTREAM_H__
#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);
virtual ~wxFileInputStream();
wxFileOffset GetLength() const;
bool Ok() const { return IsOk(); }
virtual bool IsOk() const;
bool IsSeekable() const { return m_file->GetKind() == wxFILE_KIND_DISK; }
wxFile* GetFile() const { return m_file; }
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;
wxDECLARE_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 IsOk(); }
virtual bool IsOk() const;
bool IsSeekable() const { return m_file->GetKind() == wxFILE_KIND_DISK; }
wxFile* GetFile() const { return m_file; }
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;
wxDECLARE_NO_COPY_CLASS(wxFileOutputStream);
};
class WXDLLIMPEXP_BASE wxTempFileOutputStream : public wxOutputStream
{
public:
wxTempFileOutputStream(const wxString& fileName);
virtual ~wxTempFileOutputStream();
bool Close() { return Commit(); }
WXDLLIMPEXP_INLINE_BASE virtual bool Commit() { return m_file->Commit(); }
WXDLLIMPEXP_INLINE_BASE 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;
wxDECLARE_NO_COPY_CLASS(wxTempFileOutputStream);
};
class WXDLLIMPEXP_BASE wxFileStream : public wxFileInputStream,
public wxFileOutputStream
{
public:
wxFileStream(const wxString& fileName);
virtual bool IsOk() const;
// override (some) virtual functions inherited from both classes to resolve
// ambiguities (this wouldn't be necessary if wxStreamBase were a virtual
// base class but it isn't)
virtual bool IsSeekable() const
{
return wxFileInputStream::IsSeekable();
}
virtual wxFileOffset GetLength() const
{
return wxFileInputStream::GetLength();
}
protected:
virtual wxFileOffset OnSysSeek(wxFileOffset pos, wxSeekMode mode)
{
return wxFileInputStream::OnSysSeek(pos, mode);
}
virtual wxFileOffset OnSysTell() const
{
return wxFileInputStream::OnSysTell();
}
private:
wxDECLARE_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 wxString& mode = "rb");
wxFFileInputStream(wxFFile& file);
wxFFileInputStream(FILE *file);
virtual ~wxFFileInputStream();
wxFileOffset GetLength() const;
bool Ok() const { return IsOk(); }
virtual bool IsOk() const;
bool IsSeekable() const { return m_file->GetKind() == wxFILE_KIND_DISK; }
wxFFile* GetFile() const { return m_file; }
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;
wxDECLARE_NO_COPY_CLASS(wxFFileInputStream);
};
class WXDLLIMPEXP_BASE wxFFileOutputStream : public wxOutputStream
{
public:
wxFFileOutputStream(const wxString& fileName, const wxString& mode = "wb");
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 IsOk(); }
virtual bool IsOk() const;
bool IsSeekable() const { return m_file->GetKind() == wxFILE_KIND_DISK; }
wxFFile* GetFile() const { return m_file; }
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;
wxDECLARE_NO_COPY_CLASS(wxFFileOutputStream);
};
class WXDLLIMPEXP_BASE wxFFileStream : public wxFFileInputStream,
public wxFFileOutputStream
{
public:
wxFFileStream(const wxString& fileName, const wxString& mode = "w+b");
// override some virtual functions to resolve ambiguities, just as in
// wxFileStream
virtual bool IsOk() const;
virtual bool IsSeekable() const
{
return wxFFileInputStream::IsSeekable();
}
virtual wxFileOffset GetLength() const
{
return wxFFileInputStream::GetLength();
}
protected:
virtual wxFileOffset OnSysSeek(wxFileOffset pos, wxSeekMode mode)
{
return wxFFileInputStream::OnSysSeek(pos, mode);
}
virtual wxFileOffset OnSysTell() const
{
return wxFFileInputStream::OnSysTell();
}
private:
wxDECLARE_NO_COPY_CLASS(wxFFileStream);
};
#endif //wxUSE_FFILE
#endif // wxUSE_STREAMS
#endif // _WX_WXFSTREAM_H__