| OLD | NEW |
| 1 /* | 1 /* |
| 2 * Copyright 2013 Google Inc. | 2 * Copyright 2013 Google Inc. |
| 3 * | 3 * |
| 4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
| 5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
| 6 */ | 6 */ |
| 7 | 7 |
| 8 #include "gm.h" | 8 #include "gm.h" |
| 9 #include "SkCanvas.h" | 9 #include "SkCanvas.h" |
| 10 #include "SkTArray.h" | 10 #include "SkTArray.h" |
| 11 | 11 |
| 12 class ConicPathsGM : public skiagm::GM { | 12 class ConicPathsGM : public skiagm::GM { |
| 13 protected: | 13 protected: |
| 14 | 14 |
| 15 SkString onShortName() SK_OVERRIDE { | 15 SkString onShortName() SK_OVERRIDE { |
| 16 return SkString("conicpaths"); | 16 return SkString("conicpaths"); |
| 17 } | 17 } |
| 18 | 18 |
| 19 SkISize onISize() SK_OVERRIDE { | 19 SkISize onISize() SK_OVERRIDE { |
| 20 return SkISize::Make(920, 960); | 20 return SkISize::Make(950, 1000); |
| 21 } | 21 } |
| 22 | 22 |
| 23 void onOnceBeforeDraw() SK_OVERRIDE { | 23 void onOnceBeforeDraw() SK_OVERRIDE { |
| 24 { | 24 { |
| 25 const SkScalar w = SkScalarSqrt(2)/2; | 25 const SkScalar w = SkScalarSqrt(2)/2; |
| 26 SkPath* conicCirlce = &fPaths.push_back(); | 26 SkPath* conicCirlce = &fPaths.push_back(); |
| 27 conicCirlce->moveTo(0, 0); | 27 conicCirlce->moveTo(0, -0); |
| 28 conicCirlce->conicTo(0, 50, 50, 50, w); | 28 conicCirlce->conicTo(0, 50, 50, 50, w); |
| 29 conicCirlce->rConicTo(50, 0, 50, -50, w); | 29 conicCirlce->rConicTo(50, 0, 50, -50, w); |
| 30 conicCirlce->rConicTo(0, -50, -50, -50, w); | 30 conicCirlce->rConicTo(0, -50, -50, -50, w); |
| 31 conicCirlce->rConicTo(-50, 0, -50, 50, w); | 31 conicCirlce->rConicTo(-50, 0, -50, 50, w); |
| 32 | 32 |
| 33 } | 33 } |
| 34 { | 34 { |
| 35 SkPath* hyperbola = &fPaths.push_back(); | 35 SkPath* hyperbola = &fPaths.push_back(); |
| 36 hyperbola->moveTo(0, 0); | 36 hyperbola->moveTo(0, -0); |
| 37 hyperbola->conicTo(0, 100, 100, 100, 2); | 37 hyperbola->conicTo(0, 100, 100, 100, 2); |
| 38 } | 38 } |
| 39 { | 39 { |
| 40 SkPath* thinHyperbola = &fPaths.push_back(); | 40 SkPath* thinHyperbola = &fPaths.push_back(); |
| 41 thinHyperbola->moveTo(0, 0); | 41 thinHyperbola->moveTo(0, -0); |
| 42 thinHyperbola->conicTo(100, 100, 5, 0, 2); | 42 thinHyperbola->conicTo(100, 100, 5, 0, 2); |
| 43 } | 43 } |
| 44 { | 44 { |
| 45 SkPath* veryThinHyperbola = &fPaths.push_back(); | 45 SkPath* veryThinHyperbola = &fPaths.push_back(); |
| 46 veryThinHyperbola->moveTo(0, 0); | 46 veryThinHyperbola->moveTo(0, -0); |
| 47 veryThinHyperbola->conicTo(100, 100, 1, 0, 2); | 47 veryThinHyperbola->conicTo(100, 100, 1, 0, 2); |
| 48 } | 48 } |
| 49 { | 49 { |
| 50 SkPath* closedHyperbola = &fPaths.push_back(); | 50 SkPath* closedHyperbola = &fPaths.push_back(); |
| 51 closedHyperbola->moveTo(0, 0); | 51 closedHyperbola->moveTo(0, -0); |
| 52 closedHyperbola->conicTo(100, 100, 0, 0, 2); | 52 closedHyperbola->conicTo(100, 100, 0, 0, 2); |
| 53 } | 53 } |
| 54 { | 54 { |
| 55 // using 1 as weight defaults to using quadTo | 55 // using 1 as weight defaults to using quadTo |
| 56 SkPath* nearParabola = &fPaths.push_back(); | 56 SkPath* nearParabola = &fPaths.push_back(); |
| 57 nearParabola->moveTo(0, 0); | 57 nearParabola->moveTo(0, -0); |
| 58 nearParabola->conicTo(0, 100, 100, 100, 0.999f); | 58 nearParabola->conicTo(0, 100, 100, 100, 0.999f); |
| 59 } | 59 } |
| 60 { | 60 { |
| 61 SkPath* thinEllipse = &fPaths.push_back(); | 61 SkPath* thinEllipse = &fPaths.push_back(); |
| 62 thinEllipse->moveTo(0, 0); | 62 thinEllipse->moveTo(0, -0); |
| 63 thinEllipse->conicTo(100, 100, 5, 0, SK_ScalarHalf); | 63 thinEllipse->conicTo(100, 100, 5, 0, SK_ScalarHalf); |
| 64 } | 64 } |
| 65 { | 65 { |
| 66 SkPath* veryThinEllipse = &fPaths.push_back(); | 66 SkPath* veryThinEllipse = &fPaths.push_back(); |
| 67 veryThinEllipse->moveTo(0, 0); | 67 veryThinEllipse->moveTo(0, -0); |
| 68 veryThinEllipse->conicTo(100, 100, 1, 0, SK_ScalarHalf); | 68 veryThinEllipse->conicTo(100, 100, 1, 0, SK_ScalarHalf); |
| 69 } | 69 } |
| 70 { | 70 { |
| 71 SkPath* closedEllipse = &fPaths.push_back(); | 71 SkPath* closedEllipse = &fPaths.push_back(); |
| 72 closedEllipse->moveTo(0, 0); | 72 closedEllipse->moveTo(0, -0); |
| 73 closedEllipse->conicTo(100, 100, 0, 0, SK_ScalarHalf); | 73 closedEllipse->conicTo(100, 100, 0, 0, SK_ScalarHalf); |
| 74 } | 74 } |
| 75 } | 75 } |
| 76 | 76 |
| 77 void onDraw(SkCanvas* canvas) SK_OVERRIDE { | 77 void onDraw(SkCanvas* canvas) SK_OVERRIDE { |
| 78 const SkAlpha kAlphaValue[] = { 0xFF, 0x40 }; | 78 const SkAlpha kAlphaValue[] = { 0xFF, 0x40 }; |
| 79 | 79 |
| 80 SkScalar maxH = 0; |
| 80 const SkScalar margin = 15; | 81 const SkScalar margin = 15; |
| 81 canvas->translate(margin, margin); | 82 canvas->translate(margin, margin); |
| 83 canvas->save(); |
| 82 | 84 |
| 83 SkPaint paint; | 85 SkScalar x = margin; |
| 86 int counter = 0; |
| 84 for (int p = 0; p < fPaths.count(); ++p) { | 87 for (int p = 0; p < fPaths.count(); ++p) { |
| 85 canvas->save(); | |
| 86 for (size_t a = 0; a < SK_ARRAY_COUNT(kAlphaValue); ++a) { | 88 for (size_t a = 0; a < SK_ARRAY_COUNT(kAlphaValue); ++a) { |
| 87 paint.setARGB(kAlphaValue[a], 0, 0, 0); | |
| 88 for (int aa = 0; aa < 2; ++aa) { | 89 for (int aa = 0; aa < 2; ++aa) { |
| 89 paint.setAntiAlias(SkToBool(aa)); | |
| 90 for (int fh = 0; fh < 2; ++fh) { | 90 for (int fh = 0; fh < 2; ++fh) { |
| 91 paint.setStyle(fh ? SkPaint::kStroke_Style : SkPaint::kF
ill_Style); | |
| 92 | 91 |
| 93 const SkRect& bounds = fPaths[p].getBounds(); | 92 const SkRect& bounds = fPaths[p].getBounds(); |
| 93 |
| 94 SkPaint paint; |
| 95 paint.setARGB(kAlphaValue[a], 0, 0, 0); |
| 96 paint.setAntiAlias(SkToBool(aa)); |
| 97 if (fh == 1) { |
| 98 paint.setStyle(SkPaint::kStroke_Style); |
| 99 paint.setStrokeWidth(0); |
| 100 } else if (fh == 0) { |
| 101 paint.setStyle(SkPaint::kFill_Style); |
| 102 } |
| 94 canvas->save(); | 103 canvas->save(); |
| 95 canvas->translate(-bounds.fLeft, -bounds.fTop); | 104 canvas->translate(-bounds.fLeft, -bounds.fTop); |
| 96 canvas->drawPath(fPaths[p], paint); | 105 canvas->drawPath(fPaths[p], paint); |
| 97 canvas->restore(); | 106 canvas->restore(); |
| 98 | 107 |
| 99 canvas->translate(110, 0); | 108 maxH = SkMaxScalar(maxH, bounds.height()); |
| 109 |
| 110 SkScalar dx = bounds.width() + margin; |
| 111 x += dx; |
| 112 canvas->translate(dx, 0); |
| 113 |
| 114 if (++counter == 8) { |
| 115 counter = 0; |
| 116 |
| 117 canvas->restore(); |
| 118 canvas->translate(0, maxH + margin); |
| 119 canvas->save(); |
| 120 maxH = 0; |
| 121 x = margin; |
| 122 } |
| 100 } | 123 } |
| 101 } | 124 } |
| 102 } | 125 } |
| 103 canvas->restore(); | |
| 104 canvas->translate(0, 110); | |
| 105 } | 126 } |
| 106 canvas->restore(); | 127 canvas->restore(); |
| 107 } | 128 } |
| 108 | 129 |
| 109 uint32_t onGetFlags() const SK_OVERRIDE { | 130 uint32_t onGetFlags() const SK_OVERRIDE { |
| 110 // tiling w/ non-antialias paths can cause off-by-1-pixels differences w
hich are | 131 return kSkipPDF_Flag; |
| 111 // unavoidable (chopping in floats -vs- stepping in scan-converter). | |
| 112 return kSkipTiled_Flag; | |
| 113 } | 132 } |
| 114 | 133 |
| 115 private: | 134 private: |
| 116 SkTArray<SkPath> fPaths; | 135 SkTArray<SkPath> fPaths; |
| 117 typedef skiagm::GM INHERITED; | 136 typedef skiagm::GM INHERITED; |
| 118 }; | 137 }; |
| 119 DEF_GM( return SkNEW(ConicPathsGM); ) | 138 DEF_GM( return SkNEW(ConicPathsGM); ) |
| 120 | 139 |
| 121 ////////////////////////////////////////////////////////////////////////////// | 140 ////////////////////////////////////////////////////////////////////////////// |
| 122 | 141 |
| OLD | NEW |