- ~wxDataObject();
-
- virtual wxDataFormat GetPreferredFormat() const = 0;
-
- // get the number of formats we support: it is understood that if we
- // can accept data in some format, then we can render data in this
- // format as well, but the contrary is not necessarily true. For the
- // default value of the argument, all formats we support should be
- // returned, but if outputOnlyToo == FALSE, then we should only return
- // the formats which our SetData() understands
- virtual size_t GetFormatCount(bool outputOnlyToo = TRUE) const
- { return 1; }
-
- // return all formats in the provided array (of size GetFormatCount())
- virtual void GetAllFormats(wxDataFormat *formats,
- bool outputOnlyToo = TRUE) const
- { formats[0] = GetPreferredFormat(); }
-
- // get the (total) size of data for the given format
- virtual size_t GetDataSize(const wxDataFormat& format) const = 0;
-
- // copy raw data (in the specified format) to provided pointer
- virtual bool GetDataHere(const wxDataFormat& format, void *buf) const = 0;
-
- // get data from the buffer (in the given format)
- virtual bool SetData(const wxDataFormat& format, const void *buf) = 0;
-
- // a simpler name which makes more sense for data objects supporting
- // only one format
- wxDataFormat GetFormat() const { return GetPreferredFormat(); }
-
- // old interface
- // decide if we support this format (can be either standard or custom
- // format) -- now uses GetAllFormats()
- virtual bool IsSupportedFormat(const wxDataFormat& format) const;
-
-private:
- DECLARE_DYNAMIC_CLASS( wxDataObject )
-};
-
-//----------------------------------------------------------------------------
-// wxTextDataObject is a specialization of wxDataObject for text data
-//----------------------------------------------------------------------------
-
-class wxTextDataObject : public wxDataObject
-{
-public:
- // ctors
- wxTextDataObject();
- wxTextDataObject(const wxString& strText);
- void Init(const wxString& strText) { m_strText = strText; }
-
- virtual wxDataFormat GetPreferredFormat() const
- { return wxDF_TEXT; }
- virtual bool IsSupportedFormat(const wxDataFormat& format) const
- { return format == wxDF_TEXT; }
-
- virtual size_t GetDataSize(const wxDataFormat& format) const;
- virtual bool GetDataHere(const wxDataFormat& format, void *buf) const;
- virtual bool SetData(const wxDataFormat& format, const void *buf);
-
- // additional helpers
- void SetText(const wxString& strText) { m_strText = strText; }
- wxString GetText() const { return m_strText; }
-
-private:
- wxString m_strText;
-
-private:
- DECLARE_DYNAMIC_CLASS( wxTextDataObject )
-};
-
-//----------------------------------------------------------------------------
-// wxFileDataObject is a specialization of wxDataObject for file names
-//----------------------------------------------------------------------------
-
-class wxFileDataObject : public wxDataObject
-{
-public:
- wxFileDataObject();
-
- void AddFile( const wxString &file );
- wxString GetFiles() const;
-
- virtual wxDataFormat GetPreferredFormat() const
- { return wxDF_FILENAME; }
- virtual bool IsSupportedFormat(const wxDataFormat& format) const
- { return format == wxDF_FILENAME; }
-
- virtual size_t GetDataSize(const wxDataFormat& format) const;
- virtual bool GetDataHere(const wxDataFormat& format, void *buf) const;
- virtual bool SetData(const wxDataFormat& format, const void *buf);
-
-public:
- wxString m_files;
-
-private:
- DECLARE_DYNAMIC_CLASS( wxFileDataObject )
-};
-
-//----------------------------------------------------------------------------
-// wxBitmapDataObject is a specialization of wxDataObject for bitmaps
-//----------------------------------------------------------------------------
-
-class wxBitmapDataObject : public wxDataObject
-{
-public:
- // ctors
- wxBitmapDataObject();
- wxBitmapDataObject(const wxBitmap& bitmap);
-
- // destr
- ~wxBitmapDataObject();
-
- // set/get our bitmap
- void SetBitmap(const wxBitmap& bitmap);
- const wxBitmap GetBitmap() const { return m_bitmap; }
-
- virtual wxDataFormat GetPreferredFormat() const
- { return wxDF_BITMAP; }
- virtual bool IsSupportedFormat(const wxDataFormat& format) const
- { return format == wxDF_BITMAP; }
-
- virtual size_t GetDataSize(const wxDataFormat& format) const;
- virtual bool GetDataHere(const wxDataFormat& format, void *buf) const;
-
- // sets PNG data
- virtual bool SetData(const wxDataFormat& format, const void *buf);