support retina display

[wxWidgets.git] / include / wx / mstream.h

diff --git a/include/wx/mstream.h b/include/wx/mstream.h
index 525c6d9cccc347da6f23cc6b4c842d25aecb3df6..8e12d632744ffcf5ea18513dd82a2e779848ea5f 100644 (file)
--- a/include/wx/mstream.h
+++ b/include/wx/mstream.h
@@ -12,24 +12,43 @@
 #ifndef _WX_WXMMSTREAM_H__
 #define _WX_WXMMSTREAM_H__
 
-#include "wx/stream.h"
+#include "wx/defs.h"
 
 #if wxUSE_STREAMS
 
+#include "wx/stream.h"
+
+class WXDLLIMPEXP_FWD_BASE wxMemoryOutputStream;
+
 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)
+        : wxInputStream()
+    {
+        InitFromStream(stream, wxInvalidOffset);
+    }
+
     virtual ~wxMemoryInputStream();
     virtual wxFileOffset GetLength() const { return m_length; }
-    virtual bool Eof() const;
+    virtual bool IsSeekable() const { return true; }
 
-    char Peek();
+    virtual char Peek();
+    virtual bool CanRead() const;
 
     wxStreamBuffer *GetInputStreamBuffer() const { return m_i_streambuf; }
 
+#if WXWIN_COMPATIBILITY_2_6
     // deprecated, compatibility only
-    wxStreamBuffer *InputStreamBuffer() const { return m_i_streambuf; }
+    wxDEPRECATED( wxStreamBuffer *InputStreamBuffer() const );
+#endif // WXWIN_COMPATIBILITY_2_6
 
 protected:
     wxStreamBuffer *m_i_streambuf;
@@ -39,9 +58,14 @@ 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)
+    wxDECLARE_NO_ASSIGN_CLASS(wxMemoryInputStream);
 };
 
 class WXDLLIMPEXP_BASE wxMemoryOutputStream : public wxOutputStream
@@ -51,13 +75,16 @@ public:
     wxMemoryOutputStream(void *data = NULL, size_t length = 0);
     virtual ~wxMemoryOutputStream();
     virtual wxFileOffset GetLength() const { return m_o_streambuf->GetLastAccess(); }
+    virtual bool IsSeekable() const { return true; }
 
     size_t CopyTo(void *buffer, size_t len) const;
 
     wxStreamBuffer *GetOutputStreamBuffer() const { return m_o_streambuf; }
 
+#if WXWIN_COMPATIBILITY_2_6
     // deprecated, compatibility only
-    wxStreamBuffer *OutputStreamBuffer() const { return m_o_streambuf; }
+    wxDEPRECATED( wxStreamBuffer *OutputStreamBuffer() const );
+#endif // WXWIN_COMPATIBILITY_2_6
 
 protected:
     wxStreamBuffer *m_o_streambuf;
@@ -67,12 +94,17 @@ protected:
     wxFileOffset OnSysSeek(wxFileOffset pos, wxSeekMode mode);
     wxFileOffset OnSysTell() const;
 
-    DECLARE_NO_COPY_CLASS(wxMemoryOutputStream)
+    DECLARE_DYNAMIC_CLASS(wxMemoryOutputStream)
+    wxDECLARE_NO_COPY_CLASS(wxMemoryOutputStream);
 };
 
+#if WXWIN_COMPATIBILITY_2_6
+    inline wxStreamBuffer *wxMemoryInputStream::InputStreamBuffer() const { return m_i_streambuf; }
+    inline wxStreamBuffer *wxMemoryOutputStream::OutputStreamBuffer() const { return m_o_streambuf; }
+#endif // WXWIN_COMPATIBILITY_2_6
+
 #endif
   // wxUSE_STREAMS
 
 #endif
   // _WX_WXMMSTREAM_H__
-