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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2011 Google Inc. | 3 * Copyright 2011 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 "SampleCode.h" | 8 #include "SampleCode.h" |
9 #include "SkView.h" | 9 #include "SkView.h" |
10 #include "SkCanvas.h" | 10 #include "SkCanvas.h" |
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24 | 24 |
25 static SkShader* make_bitmapfade(const SkBitmap& bm) | 25 static SkShader* make_bitmapfade(const SkBitmap& bm) |
26 { | 26 { |
27 SkPoint pts[2]; | 27 SkPoint pts[2]; |
28 SkColor colors[2]; | 28 SkColor colors[2]; |
29 | 29 |
30 pts[0].set(0, 0); | 30 pts[0].set(0, 0); |
31 pts[1].set(0, SkIntToScalar(bm.height())); | 31 pts[1].set(0, SkIntToScalar(bm.height())); |
32 colors[0] = SK_ColorBLACK; | 32 colors[0] = SK_ColorBLACK; |
33 colors[1] = SkColorSetARGB(0, 0, 0, 0); | 33 colors[1] = SkColorSetARGB(0, 0, 0, 0); |
34 SkShader* shaderA = SkGradientShader::CreateLinear(pts, colors, NULL, 2, SkS
hader::kClamp_TileMode); | 34 SkShader* shaderA = SkGradientShader::CreateLinear(pts, colors, nullptr, 2,
SkShader::kClamp_TileMode); |
35 | 35 |
36 SkShader* shaderB = SkShader::CreateBitmapShader(bm, | 36 SkShader* shaderB = SkShader::CreateBitmapShader(bm, |
37 SkShader::kClamp_TileMode, SkShader::kClamp_TileMode); | 37 SkShader::kClamp_TileMode, SkShader::kClamp_TileMode); |
38 | 38 |
39 SkXfermode* mode = SkXfermode::Create(SkXfermode::kDstIn_Mode); | 39 SkXfermode* mode = SkXfermode::Create(SkXfermode::kDstIn_Mode); |
40 | 40 |
41 SkShader* shader = new SkComposeShader(shaderB, shaderA, mode); | 41 SkShader* shader = new SkComposeShader(shaderB, shaderA, mode); |
42 shaderA->unref(); | 42 shaderA->unref(); |
43 shaderB->unref(); | 43 shaderB->unref(); |
44 mode->unref(); | 44 mode->unref(); |
45 | 45 |
46 return shader; | 46 return shader; |
47 } | 47 } |
48 | 48 |
49 class ShaderView : public SampleView { | 49 class ShaderView : public SampleView { |
50 public: | 50 public: |
51 SkShader* fShader; | 51 SkShader* fShader; |
52 SkBitmap fBitmap; | 52 SkBitmap fBitmap; |
53 | 53 |
54 ShaderView() { | 54 ShaderView() { |
55 SkImageDecoder::DecodeFile("/skimages/logo.gif", &fBitmap); | 55 SkImageDecoder::DecodeFile("/skimages/logo.gif", &fBitmap); |
56 | 56 |
57 SkPoint pts[2]; | 57 SkPoint pts[2]; |
58 SkColor colors[2]; | 58 SkColor colors[2]; |
59 | 59 |
60 pts[0].set(0, 0); | 60 pts[0].set(0, 0); |
61 pts[1].set(SkIntToScalar(100), 0); | 61 pts[1].set(SkIntToScalar(100), 0); |
62 colors[0] = SK_ColorRED; | 62 colors[0] = SK_ColorRED; |
63 colors[1] = SK_ColorBLUE; | 63 colors[1] = SK_ColorBLUE; |
64 SkShader* shaderA = SkGradientShader::CreateLinear(pts, colors, NULL, 2,
SkShader::kClamp_TileMode); | 64 SkShader* shaderA = SkGradientShader::CreateLinear(pts, colors, nullptr,
2, SkShader::kClamp_TileMode); |
65 | 65 |
66 pts[0].set(0, 0); | 66 pts[0].set(0, 0); |
67 pts[1].set(0, SkIntToScalar(100)); | 67 pts[1].set(0, SkIntToScalar(100)); |
68 colors[0] = SK_ColorBLACK; | 68 colors[0] = SK_ColorBLACK; |
69 colors[1] = SkColorSetARGB(0x80, 0, 0, 0); | 69 colors[1] = SkColorSetARGB(0x80, 0, 0, 0); |
70 SkShader* shaderB = SkGradientShader::CreateLinear(pts, colors, NULL, 2,
SkShader::kClamp_TileMode); | 70 SkShader* shaderB = SkGradientShader::CreateLinear(pts, colors, nullptr,
2, SkShader::kClamp_TileMode); |
71 | 71 |
72 SkXfermode* mode = SkXfermode::Create(SkXfermode::kDstIn_Mode); | 72 SkXfermode* mode = SkXfermode::Create(SkXfermode::kDstIn_Mode); |
73 | 73 |
74 fShader = new SkComposeShader(shaderA, shaderB, mode); | 74 fShader = new SkComposeShader(shaderA, shaderB, mode); |
75 shaderA->unref(); | 75 shaderA->unref(); |
76 shaderB->unref(); | 76 shaderB->unref(); |
77 mode->unref(); | 77 mode->unref(); |
78 } | 78 } |
79 virtual ~ShaderView() { | 79 virtual ~ShaderView() { |
80 SkSafeUnref(fShader); | 80 SkSafeUnref(fShader); |
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104 canvas->drawRectCoords(0, 0, SkIntToScalar(100), SkIntToScalar(100), pai
nt); | 104 canvas->drawRectCoords(0, 0, SkIntToScalar(100), SkIntToScalar(100), pai
nt); |
105 | 105 |
106 canvas->translate(SkIntToScalar(110), 0); | 106 canvas->translate(SkIntToScalar(110), 0); |
107 | 107 |
108 int w = fBitmap.width(); | 108 int w = fBitmap.width(); |
109 int h = fBitmap.height(); | 109 int h = fBitmap.height(); |
110 w = 120; | 110 w = 120; |
111 h = 80; | 111 h = 80; |
112 r.set(0, 0, SkIntToScalar(w), SkIntToScalar(h)); | 112 r.set(0, 0, SkIntToScalar(w), SkIntToScalar(h)); |
113 | 113 |
114 paint.setShader(NULL); | 114 paint.setShader(nullptr); |
115 canvas->drawRect(r, paint); | 115 canvas->drawRect(r, paint); |
116 paint.setShader(make_bitmapfade(fBitmap))->unref(); | 116 paint.setShader(make_bitmapfade(fBitmap))->unref(); |
117 canvas->drawRect(r, paint); | 117 canvas->drawRect(r, paint); |
118 } | 118 } |
119 | 119 |
120 SkView::Click* onFindClickHandler(SkScalar x, SkScalar y, unsigned modi) ove
rride { | 120 SkView::Click* onFindClickHandler(SkScalar x, SkScalar y, unsigned modi) ove
rride { |
121 this->inval(NULL); | 121 this->inval(nullptr); |
122 return this->INHERITED::onFindClickHandler(x, y, modi); | 122 return this->INHERITED::onFindClickHandler(x, y, modi); |
123 } | 123 } |
124 | 124 |
125 bool onClick(Click* click) override { | 125 bool onClick(Click* click) override { |
126 return this->INHERITED::onClick(click); | 126 return this->INHERITED::onClick(click); |
127 } | 127 } |
128 | 128 |
129 private: | 129 private: |
130 typedef SampleView INHERITED; | 130 typedef SampleView INHERITED; |
131 }; | 131 }; |
132 | 132 |
133 ////////////////////////////////////////////////////////////////////////////// | 133 ////////////////////////////////////////////////////////////////////////////// |
134 | 134 |
135 static SkView* MyFactory() { return new ShaderView; } | 135 static SkView* MyFactory() { return new ShaderView; } |
136 static SkViewRegister reg(MyFactory); | 136 static SkViewRegister reg(MyFactory); |
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