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/*
* Copyright 2013 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkColor.h"
#include "SkImageFilter.h"
#include "SkScalar.h"
class SK_API SkDropShadowImageFilter : public SkImageFilter {
public:
static SkDropShadowImageFilter* Create(SkScalar dx, SkScalar dy,
SkScalar sigmaX, SkScalar sigmaY, SkColor color,
SkImageFilter* input = NULL,
const CropRect* cropRect = NULL,
uint32_t uniqueID = 0) {
return SkNEW_ARGS(SkDropShadowImageFilter, (dx, dy, sigmaX, sigmaY,
color, input, cropRect, uniqueID));
}
virtual void computeFastBounds(const SkRect&, SkRect*) const SK_OVERRIDE;
SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkDropShadowImageFilter)
protected:
SkDropShadowImageFilter(SkScalar dx, SkScalar dy, SkScalar sigmaX, SkScalar sigmaY, SkColor,
SkImageFilter* input, const CropRect* cropRect, uint32_t uniqueID);
#ifdef SK_SUPPORT_LEGACY_DEEPFLATTENING
explicit SkDropShadowImageFilter(SkReadBuffer&);
#endif
virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE;
virtual bool onFilterImage(Proxy*, const SkBitmap& source, const Context&, SkBitmap* result, SkIPoint* loc) const SK_OVERRIDE;
virtual bool onFilterBounds(const SkIRect& src, const SkMatrix&,
SkIRect* dst) const SK_OVERRIDE;
private:
SkScalar fDx, fDy, fSigmaX, fSigmaY;
SkColor fColor;
typedef SkImageFilter INHERITED;
};
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