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| 1 |
| 2 /* |
| 3 * Copyright 2014 Google Inc. |
| 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 #include "gm.h" |
| 9 #include "SkCanvas.h" |
| 10 #include "SkPath.h" |
| 11 |
| 12 namespace skiagm { |
| 13 |
| 14 static const SkColor gPathColor = SK_ColorYELLOW; |
| 15 |
| 16 class ComplexClip3GM : public GM { |
| 17 public: |
| 18 ComplexClip3GM(bool doSimpleClipFirst) |
| 19 : fDoSimpleClipFirst(doSimpleClipFirst) { |
| 20 this->setBGColor(0xFFDDDDDD); |
| 21 } |
| 22 |
| 23 protected: |
| 24 uint32_t onGetFlags() const SK_OVERRIDE { |
| 25 return kSkipTiled_Flag | kSkipGPU_Flag; |
| 26 } |
| 27 |
| 28 SkString onShortName() { |
| 29 SkString str; |
| 30 str.printf("complexclip3_%s", fDoSimpleClipFirst ? "simple" : "complex")
; |
| 31 return str; |
| 32 } |
| 33 |
| 34 SkISize onISize() { return SkISize::Make(1000, 950); } |
| 35 |
| 36 virtual void onDraw(SkCanvas* canvas) { |
| 37 SkPath clipSimple; |
| 38 clipSimple.addCircle(SkIntToScalar(70), SkIntToScalar(50), SkIntToScalar
(20)); |
| 39 |
| 40 SkRect r1 = { 10, 20, 70, 80 }; |
| 41 SkPath clipComplex; |
| 42 clipComplex.moveTo(SkIntToScalar(40), SkIntToScalar(50)); |
| 43 clipComplex.arcTo(r1, SkIntToScalar(30), SkIntToScalar(300), false); |
| 44 clipComplex.close(); |
| 45 |
| 46 SkPath* firstClip = &clipSimple; |
| 47 SkPath* secondClip = &clipComplex; |
| 48 |
| 49 if (!fDoSimpleClipFirst) { |
| 50 SkTSwap<SkPath*>(firstClip, secondClip); |
| 51 } |
| 52 |
| 53 SkPaint paint; |
| 54 paint.setAntiAlias(true); |
| 55 sk_tool_utils::set_portable_typeface(&paint); |
| 56 paint.setTextSize(SkIntToScalar(20)); |
| 57 |
| 58 static const struct { |
| 59 SkRegion::Op fOp; |
| 60 const char* fName; |
| 61 } gOps[] = { |
| 62 {SkRegion::kIntersect_Op, "I"}, |
| 63 {SkRegion::kDifference_Op, "D" }, |
| 64 {SkRegion::kUnion_Op, "U"}, |
| 65 {SkRegion::kXOR_Op, "X" }, |
| 66 {SkRegion::kReverseDifference_Op, "R"} |
| 67 }; |
| 68 |
| 69 canvas->translate(SkIntToScalar(20), SkIntToScalar(20)); |
| 70 canvas->scale(3 * SK_Scalar1 / 4, 3 * SK_Scalar1 / 4); |
| 71 |
| 72 SkPaint pathPaint; |
| 73 pathPaint.setAntiAlias(true); |
| 74 pathPaint.setColor(gPathColor); |
| 75 |
| 76 for (int invA = 0; invA < 2; ++invA) { |
| 77 for (int aaBits = 0; aaBits < 4; ++aaBits) { |
| 78 canvas->save(); |
| 79 for (size_t op = 0; op < SK_ARRAY_COUNT(gOps); ++op) { |
| 80 for (int invB = 0; invB < 2; ++invB) { |
| 81 bool doAAA = SkToBool(aaBits & 1); |
| 82 bool doAAB = SkToBool(aaBits & 2); |
| 83 bool doInvA = SkToBool(invA); |
| 84 bool doInvB = SkToBool(invB); |
| 85 canvas->save(); |
| 86 // set clip |
| 87 firstClip->setFillType(doInvA ? SkPath::kInverseEvenOdd_
FillType : |
| 88 SkPath::kEvenOdd_FillType); |
| 89 secondClip->setFillType(doInvB ? SkPath::kInverseEvenOdd
_FillType : |
| 90 SkPath::kEvenOdd_FillType); |
| 91 canvas->clipPath(*firstClip, SkRegion::kIntersect_Op, do
AAA); |
| 92 canvas->clipPath(*secondClip, gOps[op].fOp, doAAB); |
| 93 |
| 94 // draw rect clipped |
| 95 SkRect r = { 0, 0, 100, 100 }; |
| 96 canvas->drawRect(r, pathPaint); |
| 97 canvas->restore(); |
| 98 |
| 99 |
| 100 SkScalar txtX = SkIntToScalar(10); |
| 101 paint.setColor(SK_ColorBLACK); |
| 102 SkString str; |
| 103 str.printf("%s%s %s %s%s", doAAA ? "A" : "B", |
| 104 doInvA ? "I" : "N", |
| 105 gOps[op].fName, |
| 106 doAAB ? "A" : "B", |
| 107 doInvB ? "I" : "N"); |
| 108 |
| 109 canvas->drawText(str.c_str(), strlen(str.c_str()), txtX,
SkIntToScalar(130), |
| 110 paint); |
| 111 if (doInvB) { |
| 112 canvas->translate(SkIntToScalar(150),0); |
| 113 } else { |
| 114 canvas->translate(SkIntToScalar(120),0); |
| 115 } |
| 116 } |
| 117 } |
| 118 canvas->restore(); |
| 119 canvas->translate(0, SkIntToScalar(150)); |
| 120 } |
| 121 } |
| 122 } |
| 123 |
| 124 private: |
| 125 bool fDoSimpleClipFirst; |
| 126 |
| 127 typedef GM INHERITED; |
| 128 }; |
| 129 |
| 130 ////////////////////////////////////////////////////////////////////////////// |
| 131 |
| 132 // Simple clip first |
| 133 DEF_GM( return new ComplexClip3GM(true); ) |
| 134 // Complex clip first |
| 135 DEF_GM( return new ComplexClip3GM(false); ) |
| 136 } |
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