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 14 class SK_API SkOffsetImageFilter : public SkImageFilter { 15 typedef SkImageFilter INHERITED; 16 17 public: 18 static SkOffsetImageFilter* Create(SkScalar dx, SkScalar dy, SkImageFilter* input = NULL, 19 const CropRect* cropRect = NULL) { 20 return SkNEW_ARGS(SkOffsetImageFilter, (dx, dy, input, cropRect)); 21 } 22 virtual void computeFastBounds(const SkRect& src, SkRect* dst) const SK_OVERRIDE; 23 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkOffsetImageFilter) 24 25 protected: 26 SkOffsetImageFilter(SkScalar dx, SkScalar dy, SkImageFilter* input, const CropRect* cropRect); 27 explicit SkOffsetImageFilter(SkReadBuffer& buffer); 28 virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE; 29 30 virtual bool onFilterImage(Proxy*, const SkBitmap& src, const Context&, 31 SkBitmap* result, SkIPoint* loc) const SK_OVERRIDE; 32 virtual bool onFilterBounds(const SkIRect&, const SkMatrix&, SkIRect*) const SK_OVERRIDE; 33 34 private: 35 SkVector fOffset; 36 }; 37 38 #endif 39
