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| 1 /* | 1 /* |
| 2 * Copyright 2013 Google Inc. | 2 * Copyright 2013 Google Inc. |
| 3 * | 3 * |
| 4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
| 5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
| 6 */ | 6 */ |
| 7 | 7 |
| 8 #include "SkColor.h" | 8 #include "SkColor.h" |
| 9 #include "SkImageFilter.h" | 9 #include "SkImageFilter.h" |
| 10 #include "SkScalar.h" | 10 #include "SkScalar.h" |
| 11 | 11 |
| 12 class SK_API SkDropShadowImageFilter : public SkImageFilter { | 12 class SK_API SkDropShadowImageFilter : public SkImageFilter { |
| 13 public: | 13 public: |
| 14 enum ShadowMode { | 14 enum ShadowMode { |
| 15 kDrawShadowAndForeground_ShadowMode, | 15 kDrawShadowAndForeground_ShadowMode, |
| 16 kDrawShadowOnly_ShadowMode, | 16 kDrawShadowOnly_ShadowMode, |
| 17 | 17 |
| 18 kLast_ShadowMode = kDrawShadowOnly_ShadowMode | 18 kLast_ShadowMode = kDrawShadowOnly_ShadowMode |
| 19 }; | 19 }; |
| 20 | 20 |
| 21 static const int kShadowModeCount = kLast_ShadowMode+1; | 21 static const int kShadowModeCount = kLast_ShadowMode+1; |
| 22 | 22 |
| 23 /** @deprecated use another Create function below instead */ | |
| 24 static SkDropShadowImageFilter* Create(SkScalar dx, SkScalar dy, | |
| 25 SkScalar sigmaX, SkScalar sigmaY, SkC
olor color, | |
| 26 SkImageFilter* input = NULL, | |
| 27 const CropRect* cropRect = NULL) { | |
| 28 return SkNEW_ARGS(SkDropShadowImageFilter, (dx, dy, sigmaX, sigmaY, colo
r, | |
| 29 kDrawShadowAndForeground_Sha
dowMode, | |
| 30 input, cropRect)); | |
| 31 } | |
| 32 | |
| 33 static SkDropShadowImageFilter* Create(SkScalar dx, SkScalar dy, | 23 static SkDropShadowImageFilter* Create(SkScalar dx, SkScalar dy, |
| 34 SkScalar sigmaX, SkScalar sigmaY, SkC
olor color, | 24 SkScalar sigmaX, SkScalar sigmaY, SkC
olor color, |
| 35 ShadowMode shadowMode, | 25 ShadowMode shadowMode, |
| 36 SkImageFilter* input = NULL, | 26 SkImageFilter* input = NULL, |
| 37 const CropRect* cropRect = NULL) { | 27 const CropRect* cropRect = NULL) { |
| 38 return SkNEW_ARGS(SkDropShadowImageFilter, (dx, dy, sigmaX, sigmaY, colo
r, | 28 return SkNEW_ARGS(SkDropShadowImageFilter, (dx, dy, sigmaX, sigmaY, colo
r, |
| 39 shadowMode, input, cropRect)
); | 29 shadowMode, input, cropRect)
); |
| 40 } | 30 } |
| 41 | 31 |
| 42 void computeFastBounds(const SkRect&, SkRect*) const SK_OVERRIDE; | 32 void computeFastBounds(const SkRect&, SkRect*) const SK_OVERRIDE; |
| 43 SK_TO_STRING_OVERRIDE() | 33 SK_TO_STRING_OVERRIDE() |
| 44 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkDropShadowImageFilter) | 34 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkDropShadowImageFilter) |
| 45 | 35 |
| 46 protected: | 36 protected: |
| 47 SkDropShadowImageFilter(SkScalar dx, SkScalar dy, SkScalar sigmaX, SkScalar
sigmaY, SkColor, | 37 SkDropShadowImageFilter(SkScalar dx, SkScalar dy, SkScalar sigmaX, SkScalar
sigmaY, SkColor, |
| 48 ShadowMode shadowMode, SkImageFilter* input, const C
ropRect* cropRect); | 38 ShadowMode shadowMode, SkImageFilter* input, const C
ropRect* cropRect); |
| 49 void flatten(SkWriteBuffer&) const SK_OVERRIDE; | 39 void flatten(SkWriteBuffer&) const SK_OVERRIDE; |
| 50 bool onFilterImage(Proxy*, const SkBitmap& source, const Context&, SkBitmap*
result, SkIPoint* loc) const SK_OVERRIDE; | 40 bool onFilterImage(Proxy*, const SkBitmap& source, const Context&, SkBitmap*
result, SkIPoint* loc) const SK_OVERRIDE; |
| 51 virtual bool onFilterBounds(const SkIRect& src, const SkMatrix&, | 41 virtual bool onFilterBounds(const SkIRect& src, const SkMatrix&, |
| 52 SkIRect* dst) const SK_OVERRIDE; | 42 SkIRect* dst) const SK_OVERRIDE; |
| 53 | 43 |
| 54 private: | 44 private: |
| 55 SkScalar fDx, fDy, fSigmaX, fSigmaY; | 45 SkScalar fDx, fDy, fSigmaX, fSigmaY; |
| 56 SkColor fColor; | 46 SkColor fColor; |
| 57 ShadowMode fShadowMode; | 47 ShadowMode fShadowMode; |
| 58 typedef SkImageFilter INHERITED; | 48 typedef SkImageFilter INHERITED; |
| 59 }; | 49 }; |
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