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| 1 /* | |
| 2 * Copyright 2016 Google Inc. | |
| 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 GrStyle_DEFINED | |
| 9 #define GrStyle_DEFINED | |
| 10 | |
| 11 #include "GrTypes.h" | |
| 12 #include "SkPathEffect.h" | |
| 13 #include "SkStrokeRec.h" | |
| 14 #include "SkTemplates.h" | |
| 15 | |
| 16 /** | |
| 17 * Represents the various ways that a GrShape can be styled. It has fill/strokin
g information | |
| 18 * as well as an optional path effect. If the path effect represents dashing, th
e dashing | |
| 19 * information is extracted from the path effect and stored explicitly. | |
| 20 * | |
| 21 * This object does not support stroke-and-fill styling. It is expected that str
oking and filling | |
| 22 * is handled by drawing a stroke and a fill separately. | |
| 23 * | |
| 24 * This will replace GrStrokeInfo as GrShape is deployed. | |
| 25 */ | |
| 26 class GrStyle { | |
| 27 public: | |
| 28 GrStyle() : fStrokeRec(SkStrokeRec::kFill_InitStyle) { | |
| 29 fDashInfo.fType = SkPathEffect::kNone_DashType; | |
| 30 } | |
| 31 | |
| 32 GrStyle(const SkStrokeRec& strokeRec, SkPathEffect* pe) : fStrokeRec(strokeR
ec) { | |
| 33 SkASSERT(SkStrokeRec::kStrokeAndFill_Style != strokeRec.getStyle()); | |
| 34 this->initPathEffect(pe); | |
| 35 } | |
| 36 | |
| 37 GrStyle(const GrStyle& that) : fStrokeRec(SkStrokeRec::kFill_InitStyle) { | |
| 38 *this = that; | |
| 39 } | |
| 40 | |
| 41 explicit GrStyle(const SkPaint& paint) : fStrokeRec(paint) { | |
| 42 SkASSERT(SkStrokeRec::kStrokeAndFill_Style != fStrokeRec.getStyle()); | |
| 43 this->initPathEffect(paint.getPathEffect()); | |
| 44 } | |
| 45 | |
| 46 GrStyle& operator=(const GrStyle& that) { | |
| 47 fPathEffect = that.fPathEffect; | |
| 48 fDashInfo = that.fDashInfo; | |
| 49 fStrokeRec = that.fStrokeRec; | |
| 50 return *this; | |
| 51 } | |
| 52 SkPathEffect* pathEffect() const { return fPathEffect.get(); } | |
| 53 | |
| 54 bool isDashed() const { return SkPathEffect::kDash_DashType == fDashInfo.fTy
pe; } | |
| 55 SkScalar dashPhase() const { | |
| 56 SkASSERT(this->isDashed()); | |
| 57 return fDashInfo.fPhase; | |
| 58 } | |
| 59 int dashIntervalCnt() const { | |
| 60 SkASSERT(this->isDashed()); | |
| 61 return fDashInfo.fIntervals.count(); | |
| 62 } | |
| 63 const SkScalar* dashIntervals() const { | |
| 64 SkASSERT(this->isDashed()); | |
| 65 return fDashInfo.fIntervals.get(); | |
| 66 } | |
| 67 | |
| 68 const SkStrokeRec& strokeRec() const { return fStrokeRec; } | |
| 69 | |
| 70 private: | |
| 71 void initPathEffect(SkPathEffect* pe); | |
| 72 | |
| 73 struct DashInfo { | |
| 74 DashInfo& operator=(const DashInfo& that) { | |
| 75 fType = that.fType; | |
| 76 fPhase = that.fPhase; | |
| 77 fIntervals.reset(that.fIntervals.count()); | |
| 78 memcpy(fIntervals.get(), that.fIntervals.get(), | |
| 79 sizeof(SkScalar) * that.fIntervals.count()); | |
| 80 return *this; | |
| 81 } | |
| 82 SkPathEffect::DashType fType; | |
| 83 SkScalar fPhase; | |
| 84 SkAutoSTArray<4, SkScalar> fIntervals; | |
| 85 }; | |
| 86 | |
| 87 SkStrokeRec fStrokeRec; | |
| 88 sk_sp<SkPathEffect> fPathEffect; | |
| 89 DashInfo fDashInfo; | |
| 90 }; | |
| 91 | |
| 92 #endif | |
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Chromium Code Reviews
Issue 1918203002:
Revert of Add initial implementation of GrShape and GrStyle classes and tests (Closed)
Base URL: https://chromium.googlesource.com/skia.git@master