1 2/* 3 * Copyright 2006 The Android Open Source Project 4 * 5 * Use of this source code is governed by a BSD-style license that can be 6 * found in the LICENSE file. 7 */ 8 9#include "SkPathEffect.h" 10#include "SkPath.h" 11#include "SkReadBuffer.h" 12#include "SkWriteBuffer.h" 13 14/////////////////////////////////////////////////////////////////////////////// 15 16void SkPathEffect::computeFastBounds(SkRect* dst, const SkRect& src) const { 17 *dst = src; 18} 19 20bool SkPathEffect::asPoints(PointData* results, const SkPath& src, 21 const SkStrokeRec&, const SkMatrix&, const SkRect*) const { 22 return false; 23} 24 25SkPathEffect::DashType SkPathEffect::asADash(DashInfo* info) const { 26 return kNone_DashType; 27} 28 29/////////////////////////////////////////////////////////////////////////////// 30 31SkPairPathEffect::SkPairPathEffect(SkPathEffect* pe0, SkPathEffect* pe1) 32 : fPE0(pe0), fPE1(pe1) { 33 SkASSERT(pe0); 34 SkASSERT(pe1); 35 fPE0->ref(); 36 fPE1->ref(); 37} 38 39SkPairPathEffect::~SkPairPathEffect() { 40 SkSafeUnref(fPE0); 41 SkSafeUnref(fPE1); 42} 43 44/* 45 Format: [oe0-factory][pe1-factory][pe0-size][pe0-data][pe1-data] 46*/ 47void SkPairPathEffect::flatten(SkWriteBuffer& buffer) const { 48 buffer.writeFlattenable(fPE0); 49 buffer.writeFlattenable(fPE1); 50} 51 52#ifndef SK_IGNORE_TO_STRING 53void SkPairPathEffect::toString(SkString* str) const { 54 str->appendf("first: "); 55 if (fPE0) { 56 fPE0->toString(str); 57 } 58 str->appendf(" second: "); 59 if (fPE1) { 60 fPE1->toString(str); 61 } 62} 63#endif 64 65/////////////////////////////////////////////////////////////////////////////// 66 67SkFlattenable* SkComposePathEffect::CreateProc(SkReadBuffer& buffer) { 68 SkAutoTUnref<SkPathEffect> pe0(buffer.readPathEffect()); 69 SkAutoTUnref<SkPathEffect> pe1(buffer.readPathEffect()); 70 if (pe0 && pe1) { 71 return SkComposePathEffect::Create(pe0, pe1); 72 } else { 73 return nullptr; 74 } 75} 76 77bool SkComposePathEffect::filterPath(SkPath* dst, const SkPath& src, 78 SkStrokeRec* rec, const SkRect* cullRect) const { 79 // we may have failed to unflatten these, so we have to check 80 if (!fPE0 || !fPE1) { 81 return false; 82 } 83 84 SkPath tmp; 85 const SkPath* ptr = &src; 86 87 if (fPE1->filterPath(&tmp, src, rec, cullRect)) { 88 ptr = &tmp; 89 } 90 return fPE0->filterPath(dst, *ptr, rec, cullRect); 91} 92 93 94#ifndef SK_IGNORE_TO_STRING 95void SkComposePathEffect::toString(SkString* str) const { 96 str->appendf("SkComposePathEffect: ("); 97 this->INHERITED::toString(str); 98 str->appendf(")"); 99} 100#endif 101 102/////////////////////////////////////////////////////////////////////////////// 103 104SkFlattenable* SkSumPathEffect::CreateProc(SkReadBuffer& buffer) { 105 SkAutoTUnref<SkPathEffect> pe0(buffer.readPathEffect()); 106 SkAutoTUnref<SkPathEffect> pe1(buffer.readPathEffect()); 107 if (pe0 && pe1) { 108 return SkSumPathEffect::Create(pe0, pe1); 109 } else { 110 return nullptr; 111 } 112} 113 114bool SkSumPathEffect::filterPath(SkPath* dst, const SkPath& src, 115 SkStrokeRec* rec, const SkRect* cullRect) const { 116 // use bit-or so that we always call both, even if the first one succeeds 117 return fPE0->filterPath(dst, src, rec, cullRect) | 118 fPE1->filterPath(dst, src, rec, cullRect); 119} 120 121 122#ifndef SK_IGNORE_TO_STRING 123void SkSumPathEffect::toString(SkString* str) const { 124 str->appendf("SkSumPathEffect: ("); 125 this->INHERITED::toString(str); 126 str->appendf(")"); 127} 128#endif 129