1 /* 2 * Copyright 2012 The Android Open Source Project 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 SkOffsetImageFilter_DEFINED 9 #define SkOffsetImageFilter_DEFINED 10 11 #include "SkFlattenable.h" 12 #include "SkImageFilter.h" 13 #include "SkPoint.h" 14 15 class SK_API SkOffsetImageFilter : public SkImageFilter { 16 public: 17 static sk_sp<SkImageFilter> Make(SkScalar dx, SkScalar dy, 18 sk_sp<SkImageFilter> input, 19 const CropRect* cropRect = nullptr); 20 21 SkRect computeFastBounds(const SkRect& src) const override; 22 23 protected: 24 void flatten(SkWriteBuffer&) const override; 25 sk_sp<SkSpecialImage> onFilterImage(SkSpecialImage* source, const Context&, 26 SkIPoint* offset) const override; 27 sk_sp<SkImageFilter> onMakeColorSpace(SkColorSpaceXformer*) const override; 28 SkIRect onFilterNodeBounds(const SkIRect&, const SkMatrix& ctm, 29 MapDirection, const SkIRect* inputRect) const override; 30 31 private: 32 SK_FLATTENABLE_HOOKS(SkOffsetImageFilter) 33 34 SkOffsetImageFilter(SkScalar dx, SkScalar dy, sk_sp<SkImageFilter> input, const CropRect*); 35 36 SkVector fOffset; 37 38 typedef SkImageFilter INHERITED; 39 }; 40 41 #endif 42