SkMagnifierImageFilter.h revision 4cb543d6057b692e1099e9f115155f0bf323a0c8 
1/*
2 * Copyright 2012 The Android Open Source Project
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
9#ifndef SkMagnifierImageFilter_DEFINED
10#define SkMagnifierImageFilter_DEFINED
11
12#include "SkRect.h"
13#include "SkImageFilter.h"
14
15class SK_API SkMagnifierImageFilter : public SkImageFilter {
16public:
17    static SkMagnifierImageFilter* Create(const SkRect& srcRect, SkScalar inset) {
18        return SkNEW_ARGS(SkMagnifierImageFilter, (srcRect, inset));
19    }
20
21    SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkMagnifierImageFilter)
22
23protected:
24    explicit SkMagnifierImageFilter(SkReadBuffer& buffer);
25    virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE;
26
27    virtual bool onFilterImage(Proxy*, const SkBitmap& src, const Context&,
28                               SkBitmap* result, SkIPoint* offset) const SK_OVERRIDE;
29#if SK_SUPPORT_GPU
30    virtual bool asNewEffect(GrEffectRef** effect, GrTexture* texture, const SkMatrix& matrix, const SkIRect& bounds) const SK_OVERRIDE;
31#endif
32
33#ifdef SK_SUPPORT_LEGACY_PUBLICEFFECTCONSTRUCTORS
34public:
35#endif
36    SkMagnifierImageFilter(const SkRect& srcRect, SkScalar inset);
37
38private:
39    SkRect fSrcRect;
40    SkScalar fInset;
41    typedef SkImageFilter INHERITED;
42};
43
44#endif
45