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 public: 16 static SkImageFilter* Create(SkScalar dx, SkScalar dy, SkImageFilter* input = NULL, 17 const CropRect* cropRect = NULL) { 18 if (!SkScalarIsFinite(dx) || !SkScalarIsFinite(dy)) { 19 return NULL; 20 } 21 return new SkOffsetImageFilter(dx, dy, input, cropRect); 22 } 23 24 void computeFastBounds(const SkRect& src, SkRect* dst) const override; 25 26 SK_TO_STRING_OVERRIDE() 27 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkOffsetImageFilter) 28 29 protected: 30 void flatten(SkWriteBuffer&) const override; 31 bool onFilterImageDeprecated(Proxy*, const SkBitmap& src, const Context&, SkBitmap* result, 32 SkIPoint* loc) const override; 33 void onFilterNodeBounds(const SkIRect&, const SkMatrix&, SkIRect*, MapDirection) const override; 34 35 private: 36 SkOffsetImageFilter(SkScalar dx, SkScalar dy, SkImageFilter* input, const CropRect*); 37 38 SkVector fOffset; 39 40 typedef SkImageFilter INHERITED; 41 }; 42 43 #endif 44
