54924243c1
The following changes were made by this CL: 1. Make flatten() a protected method as callers should use SkFlattenableWriteBuffer to flatten an object 2. Make flatten a const method (including subclasses) 3. Mark subclass implementation of flatten with SK_OVERRIDE 4. Ensure overridden flatten impls call their parent 5. Remove no-op implementations of flatten from subclasses Additionally, if necessary the unflattening constructor was also moved to the protected section of the subclasses header if it was not already there. git-svn-id: http://skia.googlecode.com/svn/trunk@3540 2bbb7eff-a529-9590-31e7-b0007b416f81
40 lines
1.0 KiB
C++
40 lines
1.0 KiB
C++
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/*
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* Copyright 2007 The Android Open Source Project
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef SkPixelXorXfermode_DEFINED
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#define SkPixelXorXfermode_DEFINED
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#include "SkXfermode.h"
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/** SkPixelXorXfermode implements a simple pixel xor (op ^ src ^ dst).
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This transformation does not follow premultiplied conventions, therefore
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this proc *always* returns an opaque color (alpha == 255). Thus it is
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not really usefull for operating on blended colors.
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*/
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class SkPixelXorXfermode : public SkXfermode {
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public:
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SkPixelXorXfermode(SkColor opColor) : fOpColor(opColor) {}
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SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkPixelXorXfermode)
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protected:
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SkPixelXorXfermode(SkFlattenableReadBuffer& rb);
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virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE;
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// override from SkXfermode
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virtual SkPMColor xferColor(SkPMColor src, SkPMColor dst);
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private:
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SkColor fOpColor;
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typedef SkXfermode INHERITED;
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};
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#endif
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