more compilation fixes for VC6 (#9492)

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

diff --git a/include/wx/dataobj.h b/include/wx/dataobj.h
index 6f2b75456dc7b428d7aee608fbfcc6837c1abc99..f7923c0b6519cc1d2829b457beb3b7208d386927 100644 (file)
--- a/include/wx/dataobj.h
+++ b/include/wx/dataobj.h
@@ -55,7 +55,7 @@ public:
     typedef <integral type> NativeFormat;
 
     wxDataFormat(NativeFormat format = wxDF_INVALID);
-    wxDataFormat(const wxChar *format);
+    wxDataFormat(const wxString& format);
 
     wxDataFormat& operator=(NativeFormat format);
     wxDataFormat& operator=(const wxDataFormat& format);
@@ -67,7 +67,7 @@ public:
     NativeFormat GetType() const;
 
     wxString GetId() const;
-    void SetId(const wxChar *format);
+    void SetId(const wxString& format);
 };
 
 */
@@ -92,7 +92,7 @@ public:
 
 // the value for default argument to some functions (corresponds to
 // wxDF_INVALID)
-extern WXDLLEXPORT const wxDataFormat& wxFormatInvalid;
+extern WXDLLIMPEXP_CORE const wxDataFormat& wxFormatInvalid;
 
 // ----------------------------------------------------------------------------
 // wxDataObject represents a piece of data which knows which formats it
@@ -114,7 +114,7 @@ extern WXDLLEXPORT const wxDataFormat& wxFormatInvalid;
 // to be supported by SetData() or GetDataHere().
 // ----------------------------------------------------------------------------
 
-class WXDLLEXPORT wxDataObjectBase
+class WXDLLIMPEXP_CORE wxDataObjectBase
 {
 public:
     enum Direction
@@ -194,7 +194,7 @@ public:
 // Otherwise, you should use wxDataObjectComposite or wxDataObject directly.
 // ----------------------------------------------------------------------------
 
-class WXDLLEXPORT wxDataObjectSimple : public wxDataObject
+class WXDLLIMPEXP_CORE wxDataObjectSimple : public wxDataObject
 {
 public:
     // ctor takes the format we support, but it can also be set later with
@@ -261,7 +261,7 @@ private:
 
 WX_DECLARE_EXPORTED_LIST(wxDataObjectSimple, wxSimpleDataObjectList);
 
-class WXDLLEXPORT wxDataObjectComposite : public wxDataObject
+class WXDLLIMPEXP_CORE wxDataObjectComposite : public wxDataObject
 {
 public:
     // ctor
@@ -273,6 +273,12 @@ public:
     // one if preferred == true
     void Add(wxDataObjectSimple *dataObject, bool preferred = false);
 
+    // Report the format passed to the SetData method.  This should be the
+    // format of the data object within the composite that recieved data from
+    // the clipboard or the DnD operation.  You can use this method to find
+    // out what kind of data object was recieved.
+    wxDataFormat GetReceivedFormat() const;
+
     // implement base class pure virtuals
     // ----------------------------------
     virtual wxDataFormat GetPreferredFormat(wxDataObjectBase::Direction dir = Get) const;
@@ -281,10 +287,6 @@ public:
     virtual size_t GetDataSize(const wxDataFormat& format) const;
     virtual bool GetDataHere(const wxDataFormat& format, void *buf) const;
     virtual bool SetData(const wxDataFormat& format, size_t len, const void *buf);
-
-protected:
-    // returns the pointer to the object which supports this format or NULL
-    wxDataObjectSimple *GetObject(const wxDataFormat& format) const;
 #if defined(__WXMSW__)
     virtual const void* GetSizeFromBuffer( const void* buffer, size_t* size,
                                            const wxDataFormat& format );
@@ -293,6 +295,10 @@ protected:
     virtual size_t GetBufferOffset( const wxDataFormat& format );
 #endif
 
+protected:
+    // returns the pointer to the object which supports this format or NULL
+    wxDataObjectSimple *GetObject(const wxDataFormat& format) const;
+
 private:
     // the list of all (simple) data objects whose formats we support
     wxSimpleDataObjectList m_dataObjects;
@@ -301,6 +307,8 @@ private:
     // one is the preferred)
     size_t m_preferred;
 
+    wxDataFormat m_receivedFormat;
+
     DECLARE_NO_COPY_CLASS(wxDataObjectComposite)
 };
 
@@ -316,7 +324,7 @@ private:
 // wxTextDataObject contains text data
 // ----------------------------------------------------------------------------
 
-class WXDLLEXPORT wxTextDataObject : public wxDataObjectSimple
+class WXDLLIMPEXP_CORE wxTextDataObject : public wxDataObjectSimple
 {
 public:
     // ctor: you can specify the text here or in SetText(), or override
@@ -359,13 +367,19 @@ public:
     virtual size_t GetDataSize() const;
     virtual bool GetDataHere(void *buf) const;
     virtual bool SetData(size_t len, const void *buf);
-
-    size_t GetDataSize(const wxDataFormat& format) const
-        { return(wxDataObjectSimple::GetDataSize(format)); }
-    bool GetDataHere(const wxDataFormat& format, void *pBuf) const
-        { return(wxDataObjectSimple::GetDataHere(format, pBuf)); }
-    bool SetData(const wxDataFormat& format, size_t nLen, const void* pBuf)
-        { return(wxDataObjectSimple::SetData(format, nLen, pBuf)); }
+    // Must provide overloads to avoid hiding them (and warnings about it)
+    virtual size_t GetDataSize(const wxDataFormat&) const
+    {
+        return GetDataSize();
+    }
+    virtual bool GetDataHere(const wxDataFormat&, void *buf) const
+    {
+        return GetDataHere(buf);
+    }
+    virtual bool SetData(const wxDataFormat&, size_t len, const void *buf)
+    {
+        return SetData(len, buf);
+    }
 #endif
 
 private:
@@ -378,7 +392,7 @@ private:
 // wxBitmapDataObject contains a bitmap
 // ----------------------------------------------------------------------------
 
-class WXDLLEXPORT wxBitmapDataObjectBase : public wxDataObjectSimple
+class WXDLLIMPEXP_CORE wxBitmapDataObjectBase : public wxDataObjectSimple
 {
 public:
     // ctor: you can specify the bitmap here or in SetBitmap(), or override
@@ -406,7 +420,7 @@ protected:
 //     data from drag and drop operation.
 // ----------------------------------------------------------------------------
 
-class WXDLLEXPORT wxFileDataObjectBase : public wxDataObjectSimple
+class WXDLLIMPEXP_CORE wxFileDataObjectBase : public wxDataObjectSimple
 {
 public:
     // ctor: use AddFile() later to fill the array
@@ -415,20 +429,9 @@ public:
     // get a reference to our array
     const wxArrayString& GetFilenames() const { return m_filenames; }
 
-    // the Get() functions do nothing for us
-    virtual size_t GetDataSize() const { return 0; }
-    virtual bool GetDataHere(void *WXUNUSED(buf)) const { return false; }
-
 protected:
     wxArrayString m_filenames;
 
-private:
-    // Virtual function hiding supression
-    size_t GetDataSize(const wxDataFormat& format) const
-        { return(wxDataObjectSimple::GetDataSize(format)); }
-    bool GetDataHere(const wxDataFormat& format, void* pBuf) const
-        { return(wxDataObjectSimple::GetDataHere(format, pBuf)); }
-
     DECLARE_NO_COPY_CLASS(wxFileDataObjectBase)
 };
 
@@ -438,7 +441,7 @@ private:
 // It is understood that this data can be copied bitwise.
 // ----------------------------------------------------------------------------
 
-class WXDLLEXPORT wxCustomDataObject : public wxDataObjectSimple
+class WXDLLIMPEXP_CORE wxCustomDataObject : public wxDataObjectSimple
 {
 public:
     // if you don't specify the format in the ctor, you can still use
@@ -472,19 +475,24 @@ public:
     virtual size_t GetDataSize() const;
     virtual bool GetDataHere(void *buf) const;
     virtual bool SetData(size_t size, const void *buf);
+    // Must provide overloads to avoid hiding them (and warnings about it)
+    virtual size_t GetDataSize(const wxDataFormat&) const
+    {
+        return GetDataSize();
+    }
+    virtual bool GetDataHere(const wxDataFormat&, void *buf) const
+    {
+        return GetDataHere(buf);
+    }
+    virtual bool SetData(const wxDataFormat&, size_t len, const void *buf)
+    {
+        return SetData(len, buf);
+    }
 
 private:
     size_t m_size;
     void  *m_data;
 
-    // virtual function hiding supression
-    size_t GetDataSize(const wxDataFormat& format) const
-        { return(wxDataObjectSimple::GetDataSize(format)); }
-    bool GetDataHere(const wxDataFormat& format, void* pBuf) const
-        { return(wxDataObjectSimple::GetDataHere(format, pBuf)); }
-    bool SetData(const wxDataFormat& format, size_t nLen, const void* pBuf)
-        { return(wxDataObjectSimple::SetData(format, nLen, pBuf)); }
-
     DECLARE_NO_COPY_CLASS(wxCustomDataObject)
 };
 
@@ -494,12 +502,13 @@ private:
 
 #if defined(__WXMSW__)
     #include "wx/msw/ole/dataobj2.h"
-
     // wxURLDataObject defined in msw/ole/dataobj2.h
-#else // !__WXMSW__
-    #if defined(__WXGTK20__)
-        #include "wx/gtk/dataobj2.h"
-    #elif defined(__WXGTK__)
+#elif defined(__WXGTK20__)
+    #include "wx/gtk/dataobj2.h"
+    // wxURLDataObject defined in msw/ole/dataobj2.h
+
+#else 
+    #if defined(__WXGTK__)
         #include "wx/gtk1/dataobj2.h"
     #elif defined(__WXX11__)
         #include "wx/x11/dataobj2.h"
@@ -514,13 +523,18 @@ private:
     #endif
 
     // wxURLDataObject is simply wxTextDataObject with a different name
-    class WXDLLEXPORT wxURLDataObject : public wxTextDataObject
+    class WXDLLIMPEXP_CORE wxURLDataObject : public wxTextDataObject
     {
     public:
+        wxURLDataObject(const wxString& url = wxEmptyString)
+            : wxTextDataObject(url)
+        {
+        }
+
         wxString GetURL() const { return GetText(); }
         void SetURL(const wxString& url) { SetText(url); }
     };
-#endif // __WXMSW__/!__WXMSW__
+#endif
 
 #endif // wxUSE_DATAOBJ