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1 /* | 1 /* |
2 * Copyright 2011 Google Inc. | 2 * Copyright 2011 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 "SkGradientShader.h" | 10 #include "SkGradientShader.h" |
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57 data.fPos, data.fCount, tm); | 57 data.fPos, data.fCount, tm); |
58 } | 58 } |
59 | 59 |
60 static SkShader* MakeSweep(const SkPoint pts[2], const GradData& data, SkShader:
:TileMode) { | 60 static SkShader* MakeSweep(const SkPoint pts[2], const GradData& data, SkShader:
:TileMode) { |
61 SkPoint center; | 61 SkPoint center; |
62 center.set(SkScalarAve(pts[0].fX, pts[1].fX), | 62 center.set(SkScalarAve(pts[0].fX, pts[1].fX), |
63 SkScalarAve(pts[0].fY, pts[1].fY)); | 63 SkScalarAve(pts[0].fY, pts[1].fY)); |
64 return SkGradientShader::CreateSweep(center.fX, center.fY, data.fColors, dat
a.fPos, data.fCount); | 64 return SkGradientShader::CreateSweep(center.fX, center.fY, data.fColors, dat
a.fPos, data.fCount); |
65 } | 65 } |
66 | 66 |
67 static SkShader* Make2Radial(const SkPoint pts[2], const GradData& data, SkShade
r::TileMode tm) { | 67 static SkShader* Make2Conical(const SkPoint pts[2], const GradData& data, SkShad
er::TileMode tm) { |
68 SkPoint center0, center1; | 68 SkPoint center0, center1; |
69 center0.set(SkScalarAve(pts[0].fX, pts[1].fX), | 69 center0.set(SkScalarAve(pts[0].fX, pts[1].fX), |
70 SkScalarAve(pts[0].fY, pts[1].fY)); | 70 SkScalarAve(pts[0].fY, pts[1].fY)); |
71 center1.set(SkScalarInterp(pts[0].fX, pts[1].fX, SkIntToScalar(3)/5), | 71 center1.set(SkScalarInterp(pts[0].fX, pts[1].fX, SkIntToScalar(3)/5), |
72 SkScalarInterp(pts[0].fY, pts[1].fY, SkIntToScalar(1)/4)); | 72 SkScalarInterp(pts[0].fY, pts[1].fY, SkIntToScalar(1)/4)); |
73 return SkGradientShader::CreateTwoPointRadial( | 73 return SkGradientShader::CreateTwoPointConical( |
74 center1, (pts[1].fX - pts[0].fX) / 7, | 74 center1, (pts[1].fX - pts[0].fX) / 7, |
75 center0, (pts[1].fX - pts[0].fX) / 2, | 75 center0, (pts[1].fX - pts[0].fX) / 2, |
76 data.fColors, data.fPos, data.fCount, tm); | 76 data.fColors, data.fPos, data.fCount, tm); |
77 } | 77 } |
78 | 78 |
79 typedef SkShader* (*GradMaker)(const SkPoint pts[2], const GradData& data, SkSha
der::TileMode tm); | 79 typedef SkShader* (*GradMaker)(const SkPoint pts[2], const GradData& data, SkSha
der::TileMode tm); |
80 | 80 |
81 static const GradMaker gGradMakers[] = { | 81 static const GradMaker gGradMakers[] = { |
82 MakeLinear, MakeRadial, MakeSweep, Make2Radial | 82 MakeLinear, MakeRadial, MakeSweep, Make2Conical |
83 }; | 83 }; |
84 | 84 |
85 /////////////////////////////////////////////////////////////////////////////// | 85 /////////////////////////////////////////////////////////////////////////////// |
86 | 86 |
87 class ShaderTextGM : public GM { | 87 class ShaderTextGM : public GM { |
88 public: | 88 public: |
89 ShaderTextGM() { | 89 ShaderTextGM() { |
90 this->setBGColor(0xFFDDDDDD); | 90 this->setBGColor(0xFFDDDDDD); |
91 } | 91 } |
92 | 92 |
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182 | 182 |
183 private: | 183 private: |
184 typedef GM INHERITED; | 184 typedef GM INHERITED; |
185 }; | 185 }; |
186 | 186 |
187 /////////////////////////////////////////////////////////////////////////////// | 187 /////////////////////////////////////////////////////////////////////////////// |
188 | 188 |
189 static GM* MyFactory(void*) { return new ShaderTextGM; } | 189 static GM* MyFactory(void*) { return new ShaderTextGM; } |
190 static GMRegistry reg(MyFactory); | 190 static GMRegistry reg(MyFactory); |
191 } | 191 } |
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