skia2/include/effects/SkDiscretePathEffect.h
Mike Reed 09d9435835 remove lots of legacy flags
BUG=skia:

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=4209

Change-Id: I49ae36a9b2bb51a6470638d3264923ff4a4dea0a
Reviewed-on: https://skia-review.googlesource.com/4209
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
2016-10-31 19:35:15 +00:00

60 lines
2.0 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 SkDiscretePathEffect_DEFINED
#define SkDiscretePathEffect_DEFINED
#include "SkPathEffect.h"
/** \class SkDiscretePathEffect
This path effect chops a path into discrete segments, and randomly displaces them.
*/
class SK_API SkDiscretePathEffect : public SkPathEffect {
public:
/** Break the path into segments of segLength length, and randomly move the endpoints
away from the original path by a maximum of deviation.
Note: works on filled or framed paths
@param seedAssist This is a caller-supplied seedAssist that modifies
the seed value that is used to randomize the path
segments' endpoints. If not supplied it defaults to 0,
in which case filtering a path multiple times will
result in the same set of segments (this is useful for
testing). If a caller does not want this behaviour
they can pass in a different seedAssist to get a
different set of path segments.
*/
static sk_sp<SkPathEffect> Make(SkScalar segLength, SkScalar dev, uint32_t seedAssist = 0);
virtual bool filterPath(SkPath* dst, const SkPath& src,
SkStrokeRec*, const SkRect*) const override;
SK_TO_STRING_OVERRIDE()
SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkDiscretePathEffect)
#ifdef SK_BUILD_FOR_ANDROID_FRAMEWORK
bool exposedInAndroidJavaAPI() const override { return true; }
#endif
protected:
SkDiscretePathEffect(SkScalar segLength,
SkScalar deviation,
uint32_t seedAssist);
void flatten(SkWriteBuffer&) const override;
private:
SkScalar fSegLength, fPerterb;
/* Caller-supplied 32 bit seed assist */
uint32_t fSeedAssist;
typedef SkPathEffect INHERITED;
};
#endif