1/*
2 * Copyright 2013 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8#ifndef SkAlphaThresholdFilter_DEFINED
9#define SkAlphaThresholdFilter_DEFINED
10
11#include "include/core/SkImageFilter.h"
12
13class SkRegion;
14
15// DEPRECATED: Use include/effects/SkImageFilters::AlphaThreshold
16class SK_API SkAlphaThresholdFilter {
17public:
18 /**
19 * Creates an image filter that samples a region. If the sample is inside the
20 * region the alpha of the image is boosted up to a threshold value. If it is
21 * outside the region then the alpha is decreased to the threshold value.
22 * The 0,0 point of the region corresponds to the upper left corner of the
23 * source image.
24 */
25 static sk_sp<SkImageFilter> Make(const SkRegion& region, SkScalar innerMin,
26 SkScalar outerMax, sk_sp<SkImageFilter> input,
27 const SkImageFilter::CropRect* cropRect = nullptr);
28
29
30 static void RegisterFlattenables();
31
32private:
33 SkAlphaThresholdFilter() = delete;
34};
35
36#endif
37