| /* |
| * Copyright 2006 The Android Open Source Project |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef SkMaskFilter_DEFINED |
| #define SkMaskFilter_DEFINED |
| |
| #include "include/core/SkBlurTypes.h" |
| #include "include/core/SkCoverageMode.h" |
| #include "include/core/SkFlattenable.h" |
| #include "include/core/SkScalar.h" |
| |
| class SkMatrix; |
| struct SkRect; |
| |
| /** \class SkMaskFilter |
| |
| SkMaskFilter is the base class for object that perform transformations on |
| the mask before drawing it. An example subclass is Blur. |
| */ |
| class SK_API SkMaskFilter : public SkFlattenable { |
| public: |
| /** Create a blur maskfilter. |
| * @param style The SkBlurStyle to use |
| * @param sigma Standard deviation of the Gaussian blur to apply. Must be > 0. |
| * @param respectCTM if true the blur's sigma is modified by the CTM. |
| * @return The new blur maskfilter |
| */ |
| static sk_sp<SkMaskFilter> MakeBlur(SkBlurStyle style, SkScalar sigma, |
| bool respectCTM = true); |
| |
| static SkFlattenable::Type GetFlattenableType() { |
| return kSkMaskFilter_Type; |
| } |
| |
| SkFlattenable::Type getFlattenableType() const override { |
| return kSkMaskFilter_Type; |
| } |
| |
| static sk_sp<SkMaskFilter> Deserialize(const void* data, size_t size, |
| const SkDeserialProcs* procs = nullptr) { |
| return sk_sp<SkMaskFilter>(static_cast<SkMaskFilter*>( |
| SkFlattenable::Deserialize( |
| kSkMaskFilter_Type, data, size, procs).release())); |
| } |
| |
| private: |
| static void RegisterFlattenables(); |
| friend class SkFlattenable; |
| }; |
| |
| #endif |