fix wxBitmap mask copying

[wxWidgets.git] / include / wx / msw / ole / dataobj.h

diff --git a/include/wx/msw/ole/dataobj.h b/include/wx/msw/ole/dataobj.h
index fe47ce3bf3a5dfc3a09392481331af1b2a5b9280..0cb65ba03c64c67305daa90949e5f4a2dc96261f 100644 (file)
--- a/include/wx/msw/ole/dataobj.h
+++ b/include/wx/msw/ole/dataobj.h
@@ -36,16 +36,44 @@ public:
     // it is deleted, it should delete us as well
     void SetAutoDelete();
 
-    // return TRUE if we support this format in "Get" direction
-    bool IsSupportedFormat(const wxDataFormat& format) const;
+    // return true if we support this format in "Get" direction
+    bool IsSupportedFormat(const wxDataFormat& format) const
+        { return wxDataObjectBase::IsSupported(format, Get); }
+
+    // if this method returns false, this wxDataObject will be copied to
+    // the clipboard with its size prepended to it, which is compatible with
+    // older wx versions
+    //
+    // if returns true, then this wxDataObject will be copied to the clipboard
+    // without any additional information and ::HeapSize() function will be used
+    // to get the size of that data
+    virtual bool NeedsVerbatimData(const wxDataFormat& WXUNUSED(format)) const
+    {
+        // return false from here only for compatibility with earlier wx versions
+        return true;
+    }
 
-#ifdef __WXDEBUG__
     // function to return symbolic name of clipboard format (for debug messages)
-    static const char *GetFormatName(wxDataFormat format);
-#endif // Debug
+#ifdef __WXDEBUG__
+    static const wxChar *GetFormatName(wxDataFormat format);
+
+    #define wxGetFormatName(format) wxDataObject::GetFormatName(format)
+#else // !Debug
+    #define wxGetFormatName(format) _T("")
+#endif // Debug/!Debug
+    // they need to be accessed from wxIDataObject, so made them public,
+    // or wxIDataObject friend
+public:
+    virtual const void* GetSizeFromBuffer( const void* buffer, size_t* size,
+                                           const wxDataFormat& format );
+    virtual void* SetSizeInBuffer( void* buffer, size_t size,
+                                   const wxDataFormat& format );
+    virtual size_t GetBufferOffset( const wxDataFormat& format );
 
 private:
     IDataObject *m_pIDataObject; // pointer to the COM interface
+
+    DECLARE_NO_COPY_CLASS(wxDataObject)
 };
 
 #endif  //_WX_MSW_OLE_DATAOBJ_H