/usr/include/thunderbird/skia/SkDiscretePathEffect.h is in thunderbird-dev 1:38.6.0+build1-0ubuntu1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 | /*
* 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 SkDiscretePathEffect* Create(SkScalar segLength,
SkScalar deviation,
uint32_t seedAssist=0) {
return SkNEW_ARGS(SkDiscretePathEffect,
(segLength, deviation, seedAssist));
}
virtual bool filterPath(SkPath* dst, const SkPath& src,
SkStrokeRec*, const SkRect*) const SK_OVERRIDE;
SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkDiscretePathEffect)
protected:
SkDiscretePathEffect(SkScalar segLength,
SkScalar deviation,
uint32_t seedAssist);
explicit SkDiscretePathEffect(SkReadBuffer&);
virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE;
private:
SkScalar fSegLength, fPerterb;
/* Caller-supplied 32 bit seed assist */
uint32_t fSeedAssist;
typedef SkPathEffect INHERITED;
};
#endif
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