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/*
* 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
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