added wxDC::CopyAttributes() and use it in wxBufferedDC to ensure that wxAutoBufferedPaintDC font is correctly initialized from the window font, as it already happens with wxPaintDC that it mimics

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@60846 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/dcbuffer.h

@@ -118,8 +118,8 @@ private:
         m_style = style;
 
         // inherit the same layout direction as the original DC
-        if (dc && dc->IsOk())
-            SetLayoutDirection(dc->GetLayoutDirection());
+        if ( dc && dc->IsOk() )
+            CopyAttributes(*dc);
     }
 
     // check that the bitmap is valid and use it