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21 
22 
23 
24 #ifndef INCLUDED_SLIDESHOW_USERPAINTEVENTHANDLER_HXX
25 #define INCLUDED_SLIDESHOW_USERPAINTEVENTHANDLER_HXX
26 
27 #include <boost/shared_ptr.hpp>
28 
29 /* Definition of UserPaintEventHandler interface */
30 
31 namespace slideshow
32 {
33     namespace internal
34     {
35         class RGBColor;
36 
37         /** Interface for handling user paint state changes.
38 
39         	Classes implementing this interface can be added to an
40         	EventMultiplexer object, and are called from there to
41         	handle user paint events.
42          */
43         class UserPaintEventHandler
44         {
45         public:
~UserPaintEventHandler()46             virtual ~UserPaintEventHandler() {}
47             virtual bool colorChanged( RGBColor const& rUserColor ) = 0;
48 	    virtual bool widthChanged( double nUserStrokeWidth ) = 0;
49 	    virtual bool eraseAllInkChanged(bool const& rEraseAllInk) =0;
50             virtual bool eraseInkWidthChanged(sal_Int32 rEraseInkSize) =0;
51             virtual bool switchEraserMode() = 0;
52             virtual bool switchPenMode() = 0;
53             virtual bool disable() = 0;
54         };
55 
56         typedef ::boost::shared_ptr< UserPaintEventHandler > UserPaintEventHandlerSharedPtr;
57 
58     }
59 }
60 
61 #endif /* INCLUDED_SLIDESHOW_USERPAINTEVENTHANDLER_HXX */
62