X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/40ff126ac4ff57ab4aa22a5c7c7ce621479e8739..59953bf4ba167311fb0cd2c2c0f3d5d0475b98c8:/include/wx/mstream.h

diff --git a/include/wx/mstream.h b/include/wx/mstream.h
index ef344236c3..d3a1e0ab9b 100644
--- a/include/wx/mstream.h
+++ b/include/wx/mstream.h
@@ -25,11 +25,22 @@ class WXDLLIMPEXP_BASE wxMemoryInputStream : public wxInputStream
 public:
     wxMemoryInputStream(const void *data, size_t length);
     wxMemoryInputStream(const wxMemoryOutputStream& stream);
+    wxMemoryInputStream(wxInputStream& stream,
+                        wxFileOffset lenFile = wxInvalidOffset)
+    {
+        InitFromStream(stream, lenFile);
+    }
+    wxMemoryInputStream(wxMemoryInputStream& stream)
+    {
+        InitFromStream(stream, wxInvalidOffset);
+    }
+
     virtual ~wxMemoryInputStream();
     virtual wxFileOffset GetLength() const { return m_length; }
     virtual bool IsSeekable() const { return true; }
 
-    char Peek();
+    virtual char Peek();
+    virtual bool CanRead() const;
 
     wxStreamBuffer *GetInputStreamBuffer() const { return m_i_streambuf; }
 
@@ -46,9 +57,14 @@ protected:
     wxFileOffset OnSysTell() const;
 
 private:
+    // common part of ctors taking wxInputStream
+    void InitFromStream(wxInputStream& stream, wxFileOffset lenFile);
+
     size_t m_length;
 
-    DECLARE_NO_COPY_CLASS(wxMemoryInputStream)
+    // copy ctor is implemented above: it copies the other stream in this one
+    DECLARE_ABSTRACT_CLASS(wxMemoryInputStream)
+    DECLARE_NO_ASSIGN_CLASS(wxMemoryInputStream)
 };
 
 class WXDLLIMPEXP_BASE wxMemoryOutputStream : public wxOutputStream
@@ -77,6 +93,7 @@ protected:
     wxFileOffset OnSysSeek(wxFileOffset pos, wxSeekMode mode);
     wxFileOffset OnSysTell() const;
 
+    DECLARE_DYNAMIC_CLASS(wxMemoryOutputStream)
     DECLARE_NO_COPY_CLASS(wxMemoryOutputStream)
 };