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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2013 Google Inc. | 3 * Copyright 2013 Google Inc. |
4 * | 4 * |
5 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
6 * found in the LICENSE file. | 6 * found in the LICENSE file. |
7 */ | 7 */ |
8 #include "gm.h" | 8 #include "gm.h" |
9 #include "SkGradientShader.h" | 9 #include "SkGradientShader.h" |
10 | 10 |
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28 }; | 28 }; |
29 | 29 |
30 //static const SkScalar gPos[] = { SK_Scalar1*999/2000, SK_Scalar1*1001/2000 }; | 30 //static const SkScalar gPos[] = { SK_Scalar1*999/2000, SK_Scalar1*1001/2000 }; |
31 | 31 |
32 static const GradData gGradData[] = { | 32 static const GradData gGradData[] = { |
33 { 40, gColors, NULL }, | 33 { 40, gColors, NULL }, |
34 // { 2, gColors, gPos }, | 34 // { 2, gColors, gPos }, |
35 // { 2, gCol2, NULL }, | 35 // { 2, gCol2, NULL }, |
36 }; | 36 }; |
37 | 37 |
38 static SkShader* MakeLinear(const SkPoint pts[2], const GradData& data, | 38 static SkShader* MakeLinear(const SkPoint pts[2], const GradData& data, SkShader
::TileMode tm) { |
39 SkShader::TileMode tm, SkUnitMapper* mapper) { | 39 return SkGradientShader::CreateLinear(pts, data.fColors, data.fPos, data.fCo
unt, tm); |
40 return SkGradientShader::CreateLinear(pts, data.fColors, data.fPos, | |
41 data.fCount, tm, mapper); | |
42 } | 40 } |
43 | 41 |
44 static SkShader* MakeRadial(const SkPoint pts[2], const GradData& data, | 42 static SkShader* MakeRadial(const SkPoint pts[2], const GradData& data, SkShader
::TileMode tm) { |
45 SkShader::TileMode tm, SkUnitMapper* mapper) { | |
46 SkPoint center; | 43 SkPoint center; |
47 center.set(SkScalarAve(pts[0].fX, pts[1].fX), | 44 center.set(SkScalarAve(pts[0].fX, pts[1].fX), |
48 SkScalarAve(pts[0].fY, pts[1].fY)); | 45 SkScalarAve(pts[0].fY, pts[1].fY)); |
49 return SkGradientShader::CreateRadial(center, center.fX, data.fColors, | 46 return SkGradientShader::CreateRadial(center, center.fX, data.fColors, |
50 data.fPos, data.fCount, tm, mapper); | 47 data.fPos, data.fCount, tm); |
51 } | 48 } |
52 | 49 |
53 static SkShader* MakeSweep(const SkPoint pts[2], const GradData& data, | 50 static SkShader* MakeSweep(const SkPoint pts[2], const GradData& data, SkShader:
:TileMode) { |
54 SkShader::TileMode, SkUnitMapper* mapper) { | |
55 SkPoint center; | 51 SkPoint center; |
56 center.set(SkScalarAve(pts[0].fX, pts[1].fX), | 52 center.set(SkScalarAve(pts[0].fX, pts[1].fX), |
57 SkScalarAve(pts[0].fY, pts[1].fY)); | 53 SkScalarAve(pts[0].fY, pts[1].fY)); |
58 return SkGradientShader::CreateSweep(center.fX, center.fY, data.fColors, | 54 return SkGradientShader::CreateSweep(center.fX, center.fY, data.fColors, dat
a.fPos, data.fCount); |
59 data.fPos, data.fCount, mapper); | |
60 } | 55 } |
61 | 56 |
62 | 57 |
63 typedef SkShader* (*GradMaker)(const SkPoint pts[2], const GradData& data, | 58 typedef SkShader* (*GradMaker)(const SkPoint pts[2], const GradData& data, SkSha
der::TileMode tm); |
64 SkShader::TileMode tm, SkUnitMapper* mapper); | 59 |
65 static const GradMaker gGradMakers[] = { | 60 static const GradMaker gGradMakers[] = { |
66 MakeLinear, MakeRadial, MakeSweep, | 61 MakeLinear, MakeRadial, MakeSweep, |
67 }; | 62 }; |
68 | 63 |
69 /////////////////////////////////////////////////////////////////////////////// | 64 /////////////////////////////////////////////////////////////////////////////// |
70 | 65 |
71 class GradientsGM : public GM { | 66 class GradientsGM : public GM { |
72 public: | 67 public: |
73 GradientsGM() { | 68 GradientsGM() { |
74 this->setBGColor(0xFFDDDDDD); | 69 this->setBGColor(0xFFDDDDDD); |
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88 }; | 83 }; |
89 SkShader::TileMode tm = SkShader::kClamp_TileMode; | 84 SkShader::TileMode tm = SkShader::kClamp_TileMode; |
90 SkRect r = { 0, 0, SkIntToScalar(100), SkIntToScalar(100) }; | 85 SkRect r = { 0, 0, SkIntToScalar(100), SkIntToScalar(100) }; |
91 SkPaint paint; | 86 SkPaint paint; |
92 paint.setAntiAlias(true); | 87 paint.setAntiAlias(true); |
93 | 88 |
94 canvas->translate(SkIntToScalar(20), SkIntToScalar(20)); | 89 canvas->translate(SkIntToScalar(20), SkIntToScalar(20)); |
95 for (size_t i = 0; i < SK_ARRAY_COUNT(gGradData); i++) { | 90 for (size_t i = 0; i < SK_ARRAY_COUNT(gGradData); i++) { |
96 canvas->save(); | 91 canvas->save(); |
97 for (size_t j = 0; j < SK_ARRAY_COUNT(gGradMakers); j++) { | 92 for (size_t j = 0; j < SK_ARRAY_COUNT(gGradMakers); j++) { |
98 SkShader* shader = gGradMakers[j](pts, gGradData[i], tm, NULL); | 93 SkShader* shader = gGradMakers[j](pts, gGradData[i], tm); |
99 paint.setShader(shader)->unref(); | 94 paint.setShader(shader)->unref(); |
100 canvas->drawRect(r, paint); | 95 canvas->drawRect(r, paint); |
101 canvas->translate(0, SkIntToScalar(120)); | 96 canvas->translate(0, SkIntToScalar(120)); |
102 } | 97 } |
103 canvas->restore(); | 98 canvas->restore(); |
104 canvas->translate(SkIntToScalar(120), 0); | 99 canvas->translate(SkIntToScalar(120), 0); |
105 } | 100 } |
106 } | 101 } |
107 | 102 |
108 private: | 103 private: |
109 typedef GM INHERITED; | 104 typedef GM INHERITED; |
110 }; | 105 }; |
111 | 106 |
112 /////////////////////////////////////////////////////////////////////////////// | 107 /////////////////////////////////////////////////////////////////////////////// |
113 | 108 |
114 static GM* MyFactory(void*) { return new GradientsGM; } | 109 static GM* MyFactory(void*) { return new GradientsGM; } |
115 static GMRegistry reg(MyFactory); | 110 static GMRegistry reg(MyFactory); |
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