/*
 * 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 SkMagnifierImageFilter_DEFINED
#define SkMagnifierImageFilter_DEFINED

#include "SkRect.h"
#include "SkImageFilter.h"

class SK_API SkMagnifierImageFilter : public SkImageFilter {
public:
    SkMagnifierImageFilter(SkRect srcRect, SkScalar inset);

    virtual bool asNewCustomStage(GrCustomStage** stage,
                                  GrTexture* texture) const SK_OVERRIDE;

    SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkMagnifierImageFilter)

protected:
    explicit SkMagnifierImageFilter(SkFlattenableReadBuffer& buffer);
    virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE;

    virtual bool onFilterImage(Proxy*, const SkBitmap& src, const SkMatrix&,
                               SkBitmap* result, SkIPoint* offset) SK_OVERRIDE;

private:
    SkRect fSrcRect;
    SkScalar fInset;
    typedef SkImageFilter INHERITED;
};

#endif
