| /* |
| * Copyright 2013 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef SkDropShadowImageFilter_DEFINED |
| #define SkDropShadowImageFilter_DEFINED |
| |
| #include "SkColor.h" |
| #include "SkImageFilter.h" |
| #include "SkScalar.h" |
| |
| class SK_API SkDropShadowImageFilter : public SkImageFilter { |
| public: |
| enum ShadowMode { |
| kDrawShadowAndForeground_ShadowMode, |
| kDrawShadowOnly_ShadowMode, |
| |
| kLast_ShadowMode = kDrawShadowOnly_ShadowMode |
| }; |
| |
| static const int kShadowModeCount = kLast_ShadowMode+1; |
| |
| static sk_sp<SkImageFilter> Make(SkScalar dx, SkScalar dy, SkScalar sigmaX, SkScalar sigmaY, |
| SkColor color, ShadowMode shadowMode, |
| sk_sp<SkImageFilter> input, |
| const CropRect* cropRect = nullptr); |
| |
| SkRect computeFastBounds(const SkRect&) const override; |
| SK_TO_STRING_OVERRIDE() |
| SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkDropShadowImageFilter) |
| |
| protected: |
| void flatten(SkWriteBuffer&) const override; |
| sk_sp<SkSpecialImage> onFilterImage(SkSpecialImage* source, const Context&, |
| SkIPoint* offset) const override; |
| sk_sp<SkImageFilter> onMakeColorSpace(SkColorSpaceXformer*) const override; |
| SkIRect onFilterNodeBounds(const SkIRect& src, const SkMatrix&, MapDirection) const override; |
| |
| private: |
| SkDropShadowImageFilter(SkScalar dx, SkScalar dy, SkScalar sigmaX, SkScalar sigmaY, SkColor, |
| ShadowMode shadowMode, sk_sp<SkImageFilter> input, |
| const CropRect* cropRect); |
| |
| SkScalar fDx, fDy, fSigmaX, fSigmaY; |
| SkColor fColor; |
| ShadowMode fShadowMode; |
| |
| typedef SkImageFilter INHERITED; |
| }; |
| |
| #endif |