SkOffsetImageFilter.h revision 225db4441e0cb887d52c906e8bb39df506304b3e
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 "SkImageFilter.h" 12#include "SkPoint.h" 13 14class SK_API SkOffsetImageFilter : public SkImageFilter { 15public: 16 static sk_sp<SkImageFilter> Make(SkScalar dx, SkScalar dy, 17 sk_sp<SkImageFilter> input, 18 const CropRect* cropRect = nullptr); 19 20 SkRect computeFastBounds(const SkRect& src) const override; 21 22 SK_TO_STRING_OVERRIDE() 23 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkOffsetImageFilter) 24 25#ifdef SK_SUPPORT_LEGACY_IMAGEFILTER_PTR 26 static SkImageFilter* Create(SkScalar dx, SkScalar dy, SkImageFilter* input = nullptr, 27 const CropRect* cropRect = nullptr) { 28 return Make(dx, dy, sk_ref_sp(input), cropRect).release(); 29 } 30#endif 31 32protected: 33 void flatten(SkWriteBuffer&) const override; 34 sk_sp<SkSpecialImage> onFilterImage(SkSpecialImage* source, const Context&, 35 SkIPoint* offset) const override; 36 SkIRect onFilterNodeBounds(const SkIRect&, const SkMatrix&, MapDirection) const override; 37 38private: 39 SkOffsetImageFilter(SkScalar dx, SkScalar dy, sk_sp<SkImageFilter> input, const CropRect*); 40 41 SkVector fOffset; 42 43 typedef SkImageFilter INHERITED; 44}; 45 46#endif 47