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21 
22 
23 
24 #ifndef _CPPCANVAS_CANVASGRAPHICHELPER_HXX
25 #define _CPPCANVAS_CANVASGRAPHICHELPER_HXX
26 
27 #include <com/sun/star/rendering/RenderState.hpp>
28 #include <basegfx/polygon/b2dpolypolygon.hxx>
29 
30 #include <cppcanvas/canvasgraphic.hxx>
31 
32 #include <boost/optional.hpp>
33 
34 namespace com { namespace sun { namespace star { namespace rendering
35 {
36     class  XGraphicDevice;
37 } } } }
38 
39 
40 /* Definition of CanvasGraphicHelper class */
41 
42 namespace cppcanvas
43 {
44 
45     namespace internal
46     {
47 
48         class CanvasGraphicHelper : public virtual CanvasGraphic
49         {
50         public:
51             CanvasGraphicHelper( const CanvasSharedPtr& rParentCanvas );
52 
53             // CanvasGraphic implementation
54             virtual void 						     setTransformation( const ::basegfx::B2DHomMatrix& rMatrix );
55             virtual ::basegfx::B2DHomMatrix          getTransformation() const;
56             virtual void                             setClip( const ::basegfx::B2DPolyPolygon& rClipPoly );
57             virtual void                             setClip();
58             virtual ::basegfx::B2DPolyPolygon const* getClip() const;
59             virtual void                             setRGBAColor( Color::IntSRGBA );
60             virtual Color::IntSRGBA                  getRGBAColor() const;
61             virtual void                             setCompositeOp( CompositeOp aOp );
62             virtual CompositeOp                      getCompositeOp() const;
63 
64         protected:
65             // for our clients
66             // ===============
67             CanvasSharedPtr																	getCanvas() const;
68             ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XGraphicDevice >	getGraphicDevice() const;
69             const ::com::sun::star::rendering::RenderState&                                 getRenderState() const;
70 
71         private:
72             mutable ::com::sun::star::rendering::RenderState 								maRenderState;
73 
74             boost::optional<basegfx::B2DPolyPolygon>                                        maClipPolyPolygon;
75             CanvasSharedPtr 																mpCanvas;
76             ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XGraphicDevice > mxGraphicDevice;
77         };
78 
79     }
80 }
81 
82 #endif /* _CPPCANVAS_CANVASGRAPHICHELPER_HXX */
83