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1 /* | 1 /* |
2 * Copyright 2012 Google Inc. | 2 * Copyright 2012 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 | 9 |
10 #include "SkCanvas.h" | 10 #include "SkCanvas.h" |
11 #include "SkComposeShader.h" | 11 #include "SkComposeShader.h" |
12 #include "SkGradientShader.h" | 12 #include "SkGradientShader.h" |
13 #include "SkGraphics.h" | 13 #include "SkGraphics.h" |
14 #include "SkShader.h" | 14 #include "SkShader.h" |
15 #include "SkString.h" | 15 #include "SkString.h" |
16 #include "SkXfermode.h" | 16 #include "SkXfermode.h" |
17 | 17 |
18 static SkShader* make_shader(SkXfermode::Mode mode) { | 18 static SkShader* make_shader(SkXfermode::Mode mode) { |
19 SkPoint pts[2]; | 19 SkPoint pts[2]; |
20 SkColor colors[2]; | 20 SkColor colors[2]; |
21 | 21 |
22 pts[0].set(0, 0); | 22 pts[0].set(0, 0); |
23 pts[1].set(SkIntToScalar(100), 0); | 23 pts[1].set(SkIntToScalar(100), 0); |
24 colors[0] = SK_ColorRED; | 24 colors[0] = SK_ColorRED; |
25 colors[1] = SK_ColorBLUE; | 25 colors[1] = SK_ColorBLUE; |
26 SkAutoTUnref<SkShader> shaderA(SkGradientShader::CreateLinear(pts, colors, N
ULL, 2, | 26 SkAutoTUnref<SkShader> shaderA(SkGradientShader::CreateLinear(pts, colors, n
ullptr, 2, |
27 SkShader::kCla
mp_TileMode)); | 27 SkShader::kCla
mp_TileMode)); |
28 | 28 |
29 pts[0].set(0, 0); | 29 pts[0].set(0, 0); |
30 pts[1].set(0, SkIntToScalar(100)); | 30 pts[1].set(0, SkIntToScalar(100)); |
31 colors[0] = SK_ColorBLACK; | 31 colors[0] = SK_ColorBLACK; |
32 colors[1] = SkColorSetARGB(0x80, 0, 0, 0); | 32 colors[1] = SkColorSetARGB(0x80, 0, 0, 0); |
33 SkAutoTUnref<SkShader> shaderB(SkGradientShader::CreateLinear(pts, colors, N
ULL, 2, | 33 SkAutoTUnref<SkShader> shaderB(SkGradientShader::CreateLinear(pts, colors, n
ullptr, 2, |
34 SkShader::kCla
mp_TileMode)); | 34 SkShader::kCla
mp_TileMode)); |
35 | 35 |
36 SkAutoTUnref<SkXfermode> xfer(SkXfermode::Create(mode)); | 36 SkAutoTUnref<SkXfermode> xfer(SkXfermode::Create(mode)); |
37 | 37 |
38 return new SkComposeShader(shaderA, shaderB, xfer); | 38 return new SkComposeShader(shaderA, shaderB, xfer); |
39 } | 39 } |
40 | 40 |
41 class ComposeShaderGM : public skiagm::GM { | 41 class ComposeShaderGM : public skiagm::GM { |
42 public: | 42 public: |
43 ComposeShaderGM() { | 43 ComposeShaderGM() { |
(...skipping 51 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
95 SkPaint paint; | 95 SkPaint paint; |
96 paint.setColor(SK_ColorGREEN); | 96 paint.setColor(SK_ColorGREEN); |
97 | 97 |
98 const SkRect r = SkRect::MakeXYWH(5, 5, 100, 100); | 98 const SkRect r = SkRect::MakeXYWH(5, 5, 100, 100); |
99 | 99 |
100 for (size_t y = 0; y < SK_ARRAY_COUNT(shaders); ++y) { | 100 for (size_t y = 0; y < SK_ARRAY_COUNT(shaders); ++y) { |
101 SkShader* shader = shaders[y]; | 101 SkShader* shader = shaders[y]; |
102 canvas->save(); | 102 canvas->save(); |
103 for (int alpha = 0xFF; alpha > 0; alpha -= 0x28) { | 103 for (int alpha = 0xFF; alpha > 0; alpha -= 0x28) { |
104 paint.setAlpha(0xFF); | 104 paint.setAlpha(0xFF); |
105 paint.setShader(NULL); | 105 paint.setShader(nullptr); |
106 canvas->drawRect(r, paint); | 106 canvas->drawRect(r, paint); |
107 | 107 |
108 paint.setAlpha(alpha); | 108 paint.setAlpha(alpha); |
109 paint.setShader(shader); | 109 paint.setShader(shader); |
110 canvas->drawRect(r, paint); | 110 canvas->drawRect(r, paint); |
111 | 111 |
112 canvas->translate(r.width() + 5, 0); | 112 canvas->translate(r.width() + 5, 0); |
113 } | 113 } |
114 canvas->restore(); | 114 canvas->restore(); |
115 canvas->translate(0, r.height() + 5); | 115 canvas->translate(0, r.height() + 5); |
116 } | 116 } |
117 } | 117 } |
118 }; | 118 }; |
119 | 119 |
120 ////////////////////////////////////////////////////////////////////////////// | 120 ////////////////////////////////////////////////////////////////////////////// |
121 | 121 |
122 DEF_GM( return new ComposeShaderGM; ) | 122 DEF_GM( return new ComposeShaderGM; ) |
123 DEF_GM( return new ComposeShaderAlphaGM; ) | 123 DEF_GM( return new ComposeShaderAlphaGM; ) |
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