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21 
22 
23 
24 #ifndef SD_SLIDESORTER_VIEW_LAYER_PAINTER_HXX
25 #define SD_SLIDESORTER_VIEW_LAYER_PAINTER_HXX
26 
27 #include <boost/shared_ptr.hpp>
28 #include <sal/types.h>
29 
30 class OutputDevice;
31 class Rectangle;
32 
33 namespace sd { namespace slidesorter { namespace view {
34 
35 class ILayerInvalidator
36 {
37 public:
38     virtual void Invalidate (const Rectangle& rInvalidationBox) = 0;
39 };
40 typedef ::boost::shared_ptr<ILayerInvalidator> SharedILayerInvalidator;
41 
42 class ILayerPainter
43 {
44 public:
45     virtual void SetLayerInvalidator (
46         const SharedILayerInvalidator& rpInvalidator) = 0;
47     virtual void Paint (
48         OutputDevice& rDevice,
49         const Rectangle& rRepaintArea) = 0;
50 };
51 typedef ::boost::shared_ptr<ILayerPainter> SharedILayerPainter;
52 
53 
54 } } } // end of namespace ::sd::slidesorter::view
55 
56 #endif
57