/////////////////////////////////////////////////////////////////////////////
-// Name: wfstream.h
+// 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: wxWidgets licence
+// 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 && wxUSE_FILE
+#if wxUSE_STREAMS
#include "wx/object.h"
#include "wx/string.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();
+class WXDLLIMPEXP_BASE wxFileInputStream : public wxInputStream
+{
+public:
+ wxFileInputStream(const wxString& ifileName);
+ wxFileInputStream(wxFile& file);
+ wxFileInputStream(int fd);
+ virtual ~wxFileInputStream();
- size_t GetSize() const;
+ wxFileOffset GetLength() const;
- bool Ok() const { return m_file->IsOpened(); }
+ bool Ok() const { return IsOk(); }
+ virtual bool IsOk() const;
+ bool IsSeekable() const { return m_file->GetKind() == wxFILE_KIND_DISK; }
- protected:
- wxFileInputStream();
+protected:
+ wxFileInputStream();
- size_t OnSysRead(void *buffer, size_t size);
- off_t OnSysSeek(off_t pos, wxSeekMode mode);
- off_t OnSysTell() const;
+ 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;
+protected:
+ wxFile *m_file;
+ bool m_file_destroy;
- DECLARE_NO_COPY_CLASS(wxFileInputStream)
+ wxDECLARE_NO_COPY_CLASS(wxFileInputStream);
};
-class WXDLLIMPEXP_BASE wxFileOutputStream: public wxOutputStream {
- public:
- wxFileOutputStream(const wxString& fileName);
- wxFileOutputStream(wxFile& file);
- wxFileOutputStream(int fd);
- virtual ~wxFileOutputStream();
+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; }
- // To solve an ambiguity on GCC
-// inline wxOutputStream& Write(const void *buffer, size_t size)
-// { return wxOutputStream::Write(buffer, size); }
+protected:
+ wxFileOutputStream();
- void Sync();
- size_t GetSize() const;
+ size_t OnSysWrite(const void *buffer, size_t size);
+ wxFileOffset OnSysSeek(wxFileOffset pos, wxSeekMode mode);
+ wxFileOffset OnSysTell() const;
- bool Ok() const { return m_file->IsOpened(); }
+protected:
+ wxFile *m_file;
+ bool m_file_destroy;
- protected:
- wxFileOutputStream();
+ wxDECLARE_NO_COPY_CLASS(wxFileOutputStream);
+};
+
+class WXDLLIMPEXP_BASE wxTempFileOutputStream : public wxOutputStream
+{
+public:
+ wxTempFileOutputStream(const wxString& fileName);
+ virtual ~wxTempFileOutputStream();
- size_t OnSysWrite(const void *buffer, size_t size);
- off_t OnSysSeek(off_t pos, wxSeekMode mode);
- off_t OnSysTell() const;
+ bool Close() { return Commit(); }
+ WXDLLIMPEXP_INLINE_BASE virtual bool Commit() { return m_file->Commit(); }
+ WXDLLIMPEXP_INLINE_BASE virtual void Discard() { m_file->Discard(); }
- protected:
- wxFile *m_file;
- bool m_file_destroy;
+ wxFileOffset GetLength() const { return m_file->Length(); }
+ bool IsSeekable() const { return true; }
- DECLARE_NO_COPY_CLASS(wxFileOutputStream)
+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:
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:
- DECLARE_NO_COPY_CLASS(wxFileStream)
+ wxDECLARE_NO_COPY_CLASS(wxFileStream);
};
+#endif //wxUSE_FILE
+
+#if wxUSE_FFILE
+
// ----------------------------------------------------------------------------
// wxFFileStream using wxFFile
// ----------------------------------------------------------------------------
-class WXDLLIMPEXP_BASE wxFFileInputStream: public wxInputStream {
- public:
- wxFFileInputStream(const wxString& ifileName);
- wxFFileInputStream(wxFFile& file);
- wxFFileInputStream(FILE *file);
- ~wxFFileInputStream();
+class WXDLLIMPEXP_BASE wxFFileInputStream : public wxInputStream
+{
+public:
+ wxFFileInputStream(const wxString& fileName, const wxString& mode = "rb");
+ wxFFileInputStream(wxFFile& file);
+ wxFFileInputStream(FILE *file);
+ virtual ~wxFFileInputStream();
- size_t GetSize() const;
+ wxFileOffset GetLength() const;
- bool Ok() const { return m_file->IsOpened(); }
+ bool Ok() const { return IsOk(); }
+ virtual bool IsOk() const;
+ bool IsSeekable() const { return m_file->GetKind() == wxFILE_KIND_DISK; }
- protected:
- wxFFileInputStream();
+protected:
+ wxFFileInputStream();
- size_t OnSysRead(void *buffer, size_t size);
- off_t OnSysSeek(off_t pos, wxSeekMode mode);
- off_t OnSysTell() const;
+ 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;
+protected:
+ wxFFile *m_file;
+ bool m_file_destroy;
- DECLARE_NO_COPY_CLASS(wxFFileInputStream)
+ wxDECLARE_NO_COPY_CLASS(wxFFileInputStream);
};
-class WXDLLIMPEXP_BASE wxFFileOutputStream: public wxOutputStream {
- public:
- wxFFileOutputStream(const wxString& fileName);
- wxFFileOutputStream(wxFFile& file);
- wxFFileOutputStream(FILE *file);
- virtual ~wxFFileOutputStream();
-
- // To solve an ambiguity on GCC
-// inline wxOutputStream& Write(const void *buffer, size_t size)
-// { return wxOutputStream::Write(buffer, size); }
+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();
- size_t GetSize() const;
+ void Sync();
+ bool Close() { return m_file_destroy ? m_file->Close() : true; }
+ wxFileOffset GetLength() const;
- bool Ok() const { return m_file->IsOpened(); }
+ bool Ok() const { return IsOk(); }
+ virtual bool IsOk() const;
+ bool IsSeekable() const { return m_file->GetKind() == wxFILE_KIND_DISK; }
- protected:
- wxFFileOutputStream();
+protected:
+ wxFFileOutputStream();
- size_t OnSysWrite(const void *buffer, size_t size);
- off_t OnSysSeek(off_t pos, wxSeekMode mode);
- off_t OnSysTell() const;
+ 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;
+protected:
+ wxFFile *m_file;
+ bool m_file_destroy;
- DECLARE_NO_COPY_CLASS(wxFFileOutputStream)
+ wxDECLARE_NO_COPY_CLASS(wxFFileOutputStream);
};
class WXDLLIMPEXP_BASE wxFFileStream : public wxFFileInputStream,
public wxFFileOutputStream
{
public:
- wxFFileStream(const wxString& fileName);
-
-private:
- DECLARE_NO_COPY_CLASS(wxFFileStream)
-};
+ wxFFileStream(const wxString& fileName, const wxString& mode = "w+b");
-#endif
- // wxUSE_STREAMS && wxUSE_FILE
+ // override some virtual functions to resolve ambiguities, just as in
+ // wxFileStream
-#endif
- // _WX_WXFSTREAM_H__
+ 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__
projects / wxWidgets.git / blobdiff