skia2/include/effects/SkCornerPathEffect.h
reed 9fa60daad4 Simplify flattening to just write enough to call the factory/public-constructor for the class. We want to *not* rely on private constructors, and not rely on calling through the inheritance hierarchy for either flattening or unflattening(CreateProc).
Refactoring pattern:

1. guard the existing constructor(readbuffer) with the legacy build-flag
2. If you are a instancable subclass, implement CreateProc(readbuffer) to create a new instances from the buffer params (or return NULL).

If you're a shader subclass
1. You must read/write the local matrix if your class accepts that in its factory/constructor, else ignore it.

R=robertphillips@google.com, mtklein@google.com, senorblanco@google.com, senorblanco@chromium.org, sugoi@chromium.org

Author: reed@google.com

Review URL: https://codereview.chromium.org/395603002
2014-08-21 07:59:51 -07:00

47 lines
1.3 KiB
C++

/*
* Copyright 2006 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 SkCornerPathEffect_DEFINED
#define SkCornerPathEffect_DEFINED
#include "SkPathEffect.h"
/** \class SkCornerPathEffect
SkCornerPathEffect is a subclass of SkPathEffect that can turn sharp corners
into various treatments (e.g. rounded corners)
*/
class SK_API SkCornerPathEffect : public SkPathEffect {
public:
/** radius must be > 0 to have an effect. It specifies the distance from each corner
that should be "rounded".
*/
static SkCornerPathEffect* Create(SkScalar radius) {
return SkNEW_ARGS(SkCornerPathEffect, (radius));
}
virtual ~SkCornerPathEffect();
virtual bool filterPath(SkPath* dst, const SkPath& src,
SkStrokeRec*, const SkRect*) const SK_OVERRIDE;
SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkCornerPathEffect)
protected:
explicit SkCornerPathEffect(SkScalar radius);
#ifdef SK_SUPPORT_LEGACY_DEEPFLATTENING
explicit SkCornerPathEffect(SkReadBuffer&);
#endif
virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE;
private:
SkScalar fRadius;
typedef SkPathEffect INHERITED;
};
#endif