1 /* 2 * Copyright 2013 Google Inc. 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 #include "SkColor.h" 9 #include "SkImageFilter.h" 10 #include "SkScalar.h" 11 12 class SK_API SkDropShadowImageFilter : public SkImageFilter { 13 public: 14 static SkDropShadowImageFilter* Create(SkScalar dx, SkScalar dy, SkScalar sigma, 15 SkColor color, SkImageFilter* input = NULL) { 16 return SkNEW_ARGS(SkDropShadowImageFilter, (dx, dy, sigma, color, input)); 17 } 18 static SkDropShadowImageFilter* Create(SkScalar dx, SkScalar dy, 19 SkScalar sigmaX, SkScalar sigmaY, SkColor color, 20 SkImageFilter* input = NULL, 21 const CropRect* cropRect = NULL) { 22 return SkNEW_ARGS(SkDropShadowImageFilter, (dx, dy, sigmaX, sigmaY, 23 color, input, cropRect)); 24 } 25 virtual void computeFastBounds(const SkRect&, SkRect*) const SK_OVERRIDE; 26 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkDropShadowImageFilter) 27 28 protected: 29 SkDropShadowImageFilter(SkScalar dx, SkScalar dy, SkScalar sigma, SkColor, 30 SkImageFilter* input); 31 SkDropShadowImageFilter(SkScalar dx, SkScalar dy, SkScalar sigmaX, SkScalar sigmaY, SkColor, 32 SkImageFilter* input, const CropRect* cropRect); 33 explicit SkDropShadowImageFilter(SkReadBuffer&); 34 virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE; 35 virtual bool onFilterImage(Proxy*, const SkBitmap& source, const Context&, SkBitmap* result, SkIPoint* loc) const SK_OVERRIDE; 36 virtual bool onFilterBounds(const SkIRect& src, const SkMatrix&, 37 SkIRect* dst) const SK_OVERRIDE; 38 39 private: 40 SkScalar fDx, fDy, fSigmaX, fSigmaY; 41 SkColor fColor; 42 typedef SkImageFilter INHERITED; 43 }; 44
