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 return SkComposePathEffect::Create(pe0, pe1); 71} 72 73bool SkComposePathEffect::filterPath(SkPath* dst, const SkPath& src, 74 SkStrokeRec* rec, const SkRect* cullRect) const { 75 // we may have failed to unflatten these, so we have to check 76 if (!fPE0 || !fPE1) { 77 return false; 78 } 79 80 SkPath tmp; 81 const SkPath* ptr = &src; 82 83 if (fPE1->filterPath(&tmp, src, rec, cullRect)) { 84 ptr = &tmp; 85 } 86 return fPE0->filterPath(dst, *ptr, rec, cullRect); 87} 88 89 90#ifndef SK_IGNORE_TO_STRING 91void SkComposePathEffect::toString(SkString* str) const { 92 str->appendf("SkComposePathEffect: ("); 93 this->INHERITED::toString(str); 94 str->appendf(")"); 95} 96#endif 97 98/////////////////////////////////////////////////////////////////////////////// 99 100SkFlattenable* SkSumPathEffect::CreateProc(SkReadBuffer& buffer) { 101 SkAutoTUnref<SkPathEffect> pe0(buffer.readPathEffect()); 102 SkAutoTUnref<SkPathEffect> pe1(buffer.readPathEffect()); 103 return SkSumPathEffect::Create(pe0, pe1); 104} 105 106bool SkSumPathEffect::filterPath(SkPath* dst, const SkPath& src, 107 SkStrokeRec* rec, const SkRect* cullRect) const { 108 // use bit-or so that we always call both, even if the first one succeeds 109 return fPE0->filterPath(dst, src, rec, cullRect) | 110 fPE1->filterPath(dst, src, rec, cullRect); 111} 112 113 114#ifndef SK_IGNORE_TO_STRING 115void SkSumPathEffect::toString(SkString* str) const { 116 str->appendf("SkSumPathEffect: ("); 117 this->INHERITED::toString(str); 118 str->appendf(")"); 119} 120#endif 121