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 | |
13 | class SkRegion; |
14 | |
15 | // DEPRECATED: Use include/effects/SkImageFilters::AlphaThreshold |
16 | class SK_API SkAlphaThresholdFilter { |
17 | public: |
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 | |
32 | private: |
33 | SkAlphaThresholdFilter() = delete; |
34 | }; |
35 | |
36 | #endif |
37 | |