text: /*
   * Copyright 2016 Google Inc.
   *
   * Use of this source code is governed by a BSD-style license that can be
   * found in the LICENSE file.
   */
  
  #ifndef SkRRectsGaussianEdgeMaskFilter_DEFINED
  #define SkRRectsGaussianEdgeMaskFilter_DEFINED
  
  #include "SkMaskFilter.h"
  #include "SkScalar.h"
  
  class SkRRect;
  
  class SK_API SkRRectsGaussianEdgeMaskFilter {
  public:
      /** Returns a mask filter that applies a Gaussian blur depending on distance to the edge
       *  of the intersection of two round rects.
       *  Currently this is only useable with round rects that have the same radii at
       *  all the corners and for which the x & y radii are equal.
       *
       *  In order to minimize fill the coverage geometry that should be drawn should be no larger
       *  than the intersection of the bounding boxes of the two round rects. Ambitious users can
       *  omit the center area of the coverage geometry if it is known to be occluded.
       */
      static sk_sp<SkMaskFilter> Make(const SkRRect& first,
                                      const SkRRect& second,
                                      SkScalar radius);
  
      SK_DECLARE_FLATTENABLE_REGISTRAR_GROUP()
  
  private:
      SkRRectsGaussianEdgeMaskFilter(); // can't be instantiated
  };
  
  #endif
  