X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/77ffb5937e89927b621128789401db8921fe580f..6968a3b87cee46f5c5af9b46e1ef97f17133cef7:/include/wx/wfstream.h

diff --git a/include/wx/wfstream.h b/include/wx/wfstream.h
index 4ca3e9d40d..1c44202177 100644
--- a/include/wx/wfstream.h
+++ b/include/wx/wfstream.h
@@ -1,24 +1,20 @@
 /////////////////////////////////////////////////////////////////////////////
-// 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"
@@ -26,63 +22,93 @@
 #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,
@@ -90,90 +116,141 @@ 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__