canvasgraphichelper.hxx

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#pragma once
 
#include <com/sun/star/rendering/RenderState.hpp>
#include <basegfx/polygon/b2dpolypolygon.hxx>
 
#include <cppcanvas/canvasgraphic.hxx>
#include <cppcanvas/canvas.hxx>
 
#include <optional>
 
namespace com::sun::star::rendering
{
    class  XGraphicDevice;
}
 
 
/* Definition of CanvasGraphicHelper class */
 
namespace cppcanvas::internal
    {
 
        class CanvasGraphicHelper : public virtual CanvasGraphic
        {
        public:
            CanvasGraphicHelper( CanvasSharedPtr xParentCanvas );
 
            // CanvasGraphic implementation
            virtual void                             setTransformation( const ::basegfx::B2DHomMatrix& rMatrix ) override;
            virtual void                             setClip( const ::basegfx::B2DPolyPolygon& rClipPoly ) override;
            virtual void                             setClip() override;
            virtual void                             setCompositeOp( sal_Int8 aOp ) override;
 
        protected:
            // for our clients
            // ===============
            const CanvasSharedPtr&                                               getCanvas() const {  return mpCanvas; }
            const css::rendering::RenderState&                                   getRenderState() const;
 
        private:
            mutable css::rendering::RenderState                                   maRenderState;
 
            std::optional<basegfx::B2DPolyPolygon>                              maClipPolyPolygon;
            CanvasSharedPtr                                                       mpCanvas;
        };
 
}
 
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