+class wxMacCoreGraphicsBrushData : public wxGraphicsObjectRefData
+{
+public:
+ wxMacCoreGraphicsBrushData( wxGraphicsRenderer* renderer );
+ wxMacCoreGraphicsBrushData( wxGraphicsRenderer* renderer, const wxBrush &brush );
+ ~wxMacCoreGraphicsBrushData ();
+
+ virtual void Apply( wxGraphicsContext* context );
+ void CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
+ const wxColour&c1, const wxColour&c2 );
+ void CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
+ const wxColour &oColor, const wxColour &cColor );
+
+ virtual bool IsShading() { return m_isShading; }
+ CGShadingRef GetShading() { return m_shading; }
+protected:
+ CGFunctionRef CreateGradientFunction( const wxColour& c1, const wxColour& c2 );
+ static void CalculateShadingValues (void *info, const CGFloat *in, CGFloat *out);
+ virtual void Init();
+
+ wxMacCoreGraphicsColour m_cgColor;
+
+ bool m_isShading;
+ CGFunctionRef m_gradientFunction;
+ CGShadingRef m_shading;
+ CGFloat *m_gradientComponents;
+};
+
+wxMacCoreGraphicsBrushData::wxMacCoreGraphicsBrushData( wxGraphicsRenderer* renderer) : wxGraphicsObjectRefData( renderer )
+{
+ Init();
+}
+
+void wxMacCoreGraphicsBrushData::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
+ const wxColour&c1, const wxColour&c2 )
+{
+ m_gradientFunction = CreateGradientFunction( c1, c2 );
+ m_shading = CGShadingCreateAxial( wxMacGetGenericRGBColorSpace(), CGPointMake(x1,y1), CGPointMake(x2,y2), m_gradientFunction, true, true ) ;
+ m_isShading = true ;
+}
+
+void wxMacCoreGraphicsBrushData::CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
+ const wxColour &oColor, const wxColour &cColor )
+{
+ m_gradientFunction = CreateGradientFunction( oColor, cColor );
+ m_shading = CGShadingCreateRadial( wxMacGetGenericRGBColorSpace(), CGPointMake(xo,yo), 0, CGPointMake(xc,yc), radius, m_gradientFunction, true, true ) ;
+ m_isShading = true ;
+}
+
+wxMacCoreGraphicsBrushData::wxMacCoreGraphicsBrushData(wxGraphicsRenderer* renderer, const wxBrush &brush) : wxGraphicsObjectRefData( renderer ),
+ m_cgColor( brush )
+{
+ Init();
+
+}
+
+wxMacCoreGraphicsBrushData::~wxMacCoreGraphicsBrushData()