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/*
* Copyright 2012 The Android Open Source Project
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkOffsetImageFilter_DEFINED
#define SkOffsetImageFilter_DEFINED
#include "SkImageFilter.h"
#include "SkPoint.h"
class SK_API SkOffsetImageFilter : public SkImageFilter {
typedef SkImageFilter INHERITED;
public:
static SkOffsetImageFilter* Create(SkScalar dx, SkScalar dy, SkImageFilter* input = NULL,
const CropRect* cropRect = NULL,
uint32_t uniqueID = 0) {
if (!SkScalarIsFinite(dx) || !SkScalarIsFinite(dy)) {
return NULL;
}
return SkNEW_ARGS(SkOffsetImageFilter, (dx, dy, input, cropRect, uniqueID));
}
virtual void computeFastBounds(const SkRect& src, SkRect* dst) const SK_OVERRIDE;
SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkOffsetImageFilter)
protected:
SkOffsetImageFilter(SkScalar dx, SkScalar dy, SkImageFilter* input, const CropRect* cropRect, uint32_t uniqueID);
#ifdef SK_SUPPORT_LEGACY_DEEPFLATTENING
explicit SkOffsetImageFilter(SkReadBuffer& buffer);
#endif
virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE;
virtual bool onFilterImage(Proxy*, const SkBitmap& src, const Context&,
SkBitmap* result, SkIPoint* loc) const SK_OVERRIDE;
virtual bool onFilterBounds(const SkIRect&, const SkMatrix&, SkIRect*) const SK_OVERRIDE;
private:
SkVector fOffset;
};
#endif
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