1 /* 2 * Copyright 2006 The Android Open Source Project 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #ifndef SkDiscretePathEffect_DEFINED 9 #define SkDiscretePathEffect_DEFINED 10 11 #include "include/core/SkPathEffect.h" 12 13 /** \class SkDiscretePathEffect 14 15 This path effect chops a path into discrete segments, and randomly displaces them. 16 */ 17 class SK_API SkDiscretePathEffect { 18 public: 19 /** Break the path into segments of segLength length, and randomly move the endpoints 20 away from the original path by a maximum of deviation. 21 Note: works on filled or framed paths 22 23 @param seedAssist This is a caller-supplied seedAssist that modifies 24 the seed value that is used to randomize the path 25 segments' endpoints. If not supplied it defaults to 0, 26 in which case filtering a path multiple times will 27 result in the same set of segments (this is useful for 28 testing). If a caller does not want this behaviour 29 they can pass in a different seedAssist to get a 30 different set of path segments. 31 */ 32 static sk_sp<SkPathEffect> Make(SkScalar segLength, SkScalar dev, uint32_t seedAssist = 0); 33 34 static void RegisterFlattenables(); 35 }; 36 37 #endif 38