skia2/include/effects/SkDiscretePathEffect.h
Mike Klein c0bd9f9fe5 rewrite includes to not need so much -Ifoo
Current strategy: everything from the top

Things to look at first are the manual changes:

   - added tools/rewrite_includes.py
   - removed -Idirectives from BUILD.gn
   - various compile.sh simplifications
   - tweak tools/embed_resources.py
   - update gn/find_headers.py to write paths from the top
   - update gn/gn_to_bp.py SkUserConfig.h layout
     so that #include "include/config/SkUserConfig.h" always
     gets the header we want.

No-Presubmit: true
Change-Id: I73a4b181654e0e38d229bc456c0d0854bae3363e
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/209706
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Hal Canary <halcanary@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
2019-04-24 16:27:11 +00:00

54 lines
1.9 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 "include/core/SkFlattenable.h"
#include "include/core/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);
protected:
SkDiscretePathEffect(SkScalar segLength,
SkScalar deviation,
uint32_t seedAssist);
void flatten(SkWriteBuffer&) const override;
bool onFilterPath(SkPath* dst, const SkPath& src, SkStrokeRec*, const SkRect*) const override;
private:
SK_FLATTENABLE_HOOKS(SkDiscretePathEffect)
SkScalar fSegLength, fPerterb;
/* Caller-supplied 32 bit seed assist */
uint32_t fSeedAssist;
typedef SkPathEffect INHERITED;
};
#endif