text: ////////////////////////////////////////////////////////////////////////////////////////////////////
  // NoesisGUI - http://www.noesisengine.com
  // Copyright (c) 2013 Noesis Technologies S.L. All Rights Reserved.
  ////////////////////////////////////////////////////////////////////////////////////////////////////
  
  
  #ifndef __GUI_RADIALGRADIENTBRUSH_H__
  #define __GUI_RADIALGRADIENTBRUSH_H__
  
  
  #include <NsCore/Noesis.h>
  #include <NsGui/CoreApi.h>
  #include <NsGui/GradientBrush.h>
  
  
  namespace Noesis
  {
  
  struct Point;
  
  ////////////////////////////////////////////////////////////////////////////////////////////////////
  /// Paints an area with a radial gradient.
  ///
  /// A focal point defines the beginning  of the gradient, and a circle defines the end point of the
  /// gradient. 
  ///
  /// http://msdn.microsoft.com/en-us/library/system.windows.media.radialgradientbrush.aspx
  ////////////////////////////////////////////////////////////////////////////////////////////////////
  class NS_GUI_CORE_API RadialGradientBrush final: public GradientBrush
  {
  public:
      RadialGradientBrush();
  
      /// Gets or sets the center of the outermost circle of the radial gradient
      //@{
      const Point& GetCenter() const;
      void SetCenter(const Point& center);
      //@}
  
      /// Gets or sets the location of the two-dimensional focal point that defines the beginning of 
      /// the gradient
      //@{
      const Point& GetGradientOrigin() const;
      void SetGradientOrigin(const Point& origin);
      //@}
  
      /// Gets or sets the horizontal radius of the outermost circle of the radial gradient
      //@{
      float GetRadiusX() const;
      void SetRadiusX(float radius);
      //@}
  
      /// Gets or sets the vertical radius of the outermost circle of a radial gradient
      //@{
      float GetRadiusY() const;
      void SetRadiusY(float radius);
      //@}
  
      // Hides Freezable methods for convenience
      //@{
      Ptr<RadialGradientBrush> Clone() const;
      Ptr<RadialGradientBrush> CloneCurrentValue() const;
      //@}
  
      /// From IRenderProxyCreator
      //@{
      void CreateRenderProxy(RenderTreeUpdater& updater, uint32_t proxyIndex) override;
      void UpdateRenderProxy(RenderTreeUpdater& updater, uint32_t proxyIndex) override;
      //@}
  
  public:
      /// Dependency Properties
      //@{
      static const DependencyProperty* CenterProperty;
      static const DependencyProperty* GradientOriginProperty;
      static const DependencyProperty* RadiusXProperty;
      static const DependencyProperty* RadiusYProperty;
      //@}
  
  protected:
      /// From DependencyObject
      //@{
      bool OnPropertyChanged(const DependencyPropertyChangedEventArgs& args) override;
      //@}
  
      /// From Freezable
      //@{
      Ptr<Freezable> CreateInstanceCore() const override;
      //@}
  
  private:
      enum UpdateFlags
      {
          UpdateFlags_Center = GradientBrush::UpdateFlags_Sentinel,
          UpdateFlags_Origin,
          UpdateFlags_RadiusX,
          UpdateFlags_RadiusY
      };
  
      NS_DECLARE_REFLECTION(RadialGradientBrush, GradientBrush)
  };
  
  }
  
  
  #endif
  