X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/5fec5bb62084ea8241adbc52945d812bf5e659c3..05c3f0fc73d9124061c08e3d707b4e3d6bab4ff4:/include/wx/wfstream.h

diff --git a/include/wx/wfstream.h b/include/wx/wfstream.h
index 249453f183..79cdb866cf 100644
--- a/include/wx/wfstream.h
+++ b/include/wx/wfstream.h
@@ -18,7 +18,7 @@
 
 #include "wx/defs.h"
 
-#if wxUSE_STREAMS && wxUSE_FILE
+#if wxUSE_STREAMS
 
 #include "wx/object.h"
 #include "wx/string.h"
@@ -26,6 +26,8 @@
 #include "wx/file.h"
 #include "wx/ffile.h"
 
+#if wxUSE_FILE
+
 // ----------------------------------------------------------------------------
 // wxFileStream using wxFile
 // ----------------------------------------------------------------------------
@@ -41,6 +43,7 @@ public:
     wxFileOffset GetLength() const;
 
     bool Ok() const { return m_file->IsOpened(); }
+    bool IsSeekable() const { return m_file->GetKind() == wxFILE_KIND_DISK; }
 
 protected:
     wxFileInputStream();
@@ -69,6 +72,7 @@ public:
     wxFileOffset GetLength() const;
 
     bool Ok() const { return m_file->IsOpened(); }
+    bool IsSeekable() const { return m_file->GetKind() == wxFILE_KIND_DISK; }
 
 protected:
     wxFileOutputStream();
@@ -84,6 +88,31 @@ protected:
     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
 {
@@ -94,6 +123,10 @@ private:
     DECLARE_NO_COPY_CLASS(wxFileStream)
 };
 
+#endif //wxUSE_FILE
+
+#if wxUSE_FFILE
+
 // ----------------------------------------------------------------------------
 // wxFFileStream using wxFFile
 // ----------------------------------------------------------------------------
@@ -109,6 +142,7 @@ public:
     wxFileOffset GetLength() const;
 
     bool Ok() const { return m_file->IsOpened(); }
+    bool IsSeekable() const { return m_file->GetKind() == wxFILE_KIND_DISK; }
 
 protected:
     wxFFileInputStream();
@@ -137,6 +171,7 @@ public:
     wxFileOffset GetLength() const;
 
     bool Ok() const { return m_file->IsOpened(); }
+    bool IsSeekable() const { return m_file->GetKind() == wxFILE_KIND_DISK; }
 
 protected:
     wxFFileOutputStream();
@@ -162,6 +197,8 @@ private:
     DECLARE_NO_COPY_CLASS(wxFFileStream)
 };
 
-#endif // wxUSE_STREAMS && wxUSE_FILE
+#endif //wxUSE_FFILE
+
+#endif // wxUSE_STREAMS
 
 #endif // _WX_WXFSTREAM_H__