Sk2DPathEffect.h revision 4bbdeac58cc928dc66296bde3bd06e78070d96b7
18a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com/* 2ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * Copyright 2006 The Android Open Source Project 38a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com * 4ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * Use of this source code is governed by a BSD-style license that can be 5ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * found in the LICENSE file. 68a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com */ 78a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 88a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#ifndef Sk2DPathEffect_DEFINED 98a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#define Sk2DPathEffect_DEFINED 108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1118dc47731f4b37d8896b51f1b92ab31abd78b5a0reed@google.com#include "SkPath.h" 128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkPathEffect.h" 138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkMatrix.h" 148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 156806fe87e0b39e283291c1a1c7d1d864230aa2aatfarina@chromium.orgclass SK_API Sk2DPathEffect : public SkPathEffect { 168a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.compublic: 178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com Sk2DPathEffect(const SkMatrix& mat); 188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 19548a1f321011292359ef163f78c8a1d4871b3b7freed@google.com virtual bool filterPath(SkPath*, const SkPath&, 204bbdeac58cc928dc66296bde3bd06e78070d96b7reed@google.com SkStrokeRec*, const SkRect*) const SK_OVERRIDE; 218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 22ba28d03e94dc221d6a803bf2a84a420b9159255cdjsollen@google.com SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(Sk2DPathEffect) 238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comprotected: 258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com /** New virtual, to be overridden by subclasses. 268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com This is called once from filterPath, and provides the 278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com uv parameter bounds for the path. Subsequent calls to 288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com next() will receive u and v values within these bounds, 298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com and then a call to end() will signal the end of processing. 308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com */ 31548a1f321011292359ef163f78c8a1d4871b3b7freed@google.com virtual void begin(const SkIRect& uvBounds, SkPath* dst) const; 32548a1f321011292359ef163f78c8a1d4871b3b7freed@google.com virtual void next(const SkPoint& loc, int u, int v, SkPath* dst) const; 33548a1f321011292359ef163f78c8a1d4871b3b7freed@google.com virtual void end(SkPath* dst) const; 348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com /** Low-level virtual called per span of locations in the u-direction. 368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com The default implementation calls next() repeatedly with each 378a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com location. 388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com */ 39548a1f321011292359ef163f78c8a1d4871b3b7freed@google.com virtual void nextSpan(int u, int v, int ucount, SkPath* dst) const; 408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkMatrix& getMatrix() const { return fMatrix; } 428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // protected so that subclasses can call this during unflattening 448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com Sk2DPathEffect(SkFlattenableReadBuffer&); 4554924243c1b65b3ee6d8fa064b50a9b1bb2a19a5djsollen@google.com virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE; 468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comprivate: 488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMatrix fMatrix, fInverse; 4990bf427001fd4f6d9fcee88911deb015aeb4ab7cmike@reedtribe.org bool fMatrixIsInvertible; 5090bf427001fd4f6d9fcee88911deb015aeb4ab7cmike@reedtribe.org 518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // illegal 528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com Sk2DPathEffect(const Sk2DPathEffect&); 538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com Sk2DPathEffect& operator=(const Sk2DPathEffect&); 548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 558a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com friend class Sk2DPathEffectBlitter; 568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com typedef SkPathEffect INHERITED; 578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com}; 588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 596806fe87e0b39e283291c1a1c7d1d864230aa2aatfarina@chromium.orgclass SK_API SkLine2DPathEffect : public Sk2DPathEffect { 60d8a6cc814f1a0a8faaddad05ae765ad2f6b11aacscroggo@google.compublic: 61d8a6cc814f1a0a8faaddad05ae765ad2f6b11aacscroggo@google.com SkLine2DPathEffect(SkScalar width, const SkMatrix& matrix) 62d8a6cc814f1a0a8faaddad05ae765ad2f6b11aacscroggo@google.com : Sk2DPathEffect(matrix), fWidth(width) {} 63d8a6cc814f1a0a8faaddad05ae765ad2f6b11aacscroggo@google.com 64548a1f321011292359ef163f78c8a1d4871b3b7freed@google.com virtual bool filterPath(SkPath* dst, const SkPath& src, 654bbdeac58cc928dc66296bde3bd06e78070d96b7reed@google.com SkStrokeRec*, const SkRect*) const SK_OVERRIDE; 66d8a6cc814f1a0a8faaddad05ae765ad2f6b11aacscroggo@google.com 67d8a6cc814f1a0a8faaddad05ae765ad2f6b11aacscroggo@google.com SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkLine2DPathEffect) 68d8a6cc814f1a0a8faaddad05ae765ad2f6b11aacscroggo@google.com 69d8a6cc814f1a0a8faaddad05ae765ad2f6b11aacscroggo@google.comprotected: 70548a1f321011292359ef163f78c8a1d4871b3b7freed@google.com virtual void nextSpan(int u, int v, int ucount, SkPath*) const SK_OVERRIDE; 71d8a6cc814f1a0a8faaddad05ae765ad2f6b11aacscroggo@google.com 72d8a6cc814f1a0a8faaddad05ae765ad2f6b11aacscroggo@google.com SkLine2DPathEffect(SkFlattenableReadBuffer&); 73d8a6cc814f1a0a8faaddad05ae765ad2f6b11aacscroggo@google.com 74d8a6cc814f1a0a8faaddad05ae765ad2f6b11aacscroggo@google.com virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE; 75d8a6cc814f1a0a8faaddad05ae765ad2f6b11aacscroggo@google.com 76d8a6cc814f1a0a8faaddad05ae765ad2f6b11aacscroggo@google.comprivate: 77d8a6cc814f1a0a8faaddad05ae765ad2f6b11aacscroggo@google.com SkScalar fWidth; 78d8a6cc814f1a0a8faaddad05ae765ad2f6b11aacscroggo@google.com 79d8a6cc814f1a0a8faaddad05ae765ad2f6b11aacscroggo@google.com typedef Sk2DPathEffect INHERITED; 80d8a6cc814f1a0a8faaddad05ae765ad2f6b11aacscroggo@google.com}; 81d8a6cc814f1a0a8faaddad05ae765ad2f6b11aacscroggo@google.com 826806fe87e0b39e283291c1a1c7d1d864230aa2aatfarina@chromium.orgclass SK_API SkPath2DPathEffect : public Sk2DPathEffect { 8318dc47731f4b37d8896b51f1b92ab31abd78b5a0reed@google.compublic: 8418dc47731f4b37d8896b51f1b92ab31abd78b5a0reed@google.com /** 8518dc47731f4b37d8896b51f1b92ab31abd78b5a0reed@google.com * Stamp the specified path to fill the shape, using the matrix to define 8618dc47731f4b37d8896b51f1b92ab31abd78b5a0reed@google.com * the latice. 8718dc47731f4b37d8896b51f1b92ab31abd78b5a0reed@google.com */ 8818dc47731f4b37d8896b51f1b92ab31abd78b5a0reed@google.com SkPath2DPathEffect(const SkMatrix&, const SkPath&); 89fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com 90ba28d03e94dc221d6a803bf2a84a420b9159255cdjsollen@google.com SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkPath2DPathEffect) 9118dc47731f4b37d8896b51f1b92ab31abd78b5a0reed@google.com 9218dc47731f4b37d8896b51f1b92ab31abd78b5a0reed@google.comprotected: 9318dc47731f4b37d8896b51f1b92ab31abd78b5a0reed@google.com SkPath2DPathEffect(SkFlattenableReadBuffer& buffer); 9454924243c1b65b3ee6d8fa064b50a9b1bb2a19a5djsollen@google.com virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE; 9518dc47731f4b37d8896b51f1b92ab31abd78b5a0reed@google.com 96548a1f321011292359ef163f78c8a1d4871b3b7freed@google.com virtual void next(const SkPoint&, int u, int v, SkPath*) const SK_OVERRIDE; 9718dc47731f4b37d8896b51f1b92ab31abd78b5a0reed@google.com 9818dc47731f4b37d8896b51f1b92ab31abd78b5a0reed@google.comprivate: 9918dc47731f4b37d8896b51f1b92ab31abd78b5a0reed@google.com SkPath fPath; 10018dc47731f4b37d8896b51f1b92ab31abd78b5a0reed@google.com 10118dc47731f4b37d8896b51f1b92ab31abd78b5a0reed@google.com typedef Sk2DPathEffect INHERITED; 10218dc47731f4b37d8896b51f1b92ab31abd78b5a0reed@google.com}; 10318dc47731f4b37d8896b51f1b92ab31abd78b5a0reed@google.com 1048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#endif 105