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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 "SampleCode.h" | 8 #include "SampleCode.h" |
9 #include "SkView.h" | 9 #include "SkView.h" |
10 #include "SkCanvas.h" | 10 #include "SkCanvas.h" |
11 #include "SkColorPriv.h" | 11 #include "SkColorPriv.h" |
12 #include "SkShader.h" | 12 #include "SkShader.h" |
13 | 13 |
14 static const struct { | 14 static const struct { |
15 SkXfermode::Mode fMode; | 15 SkBlendMode fMode; |
16 const char* fLabel; | 16 const char* fLabel; |
17 } gModes[] = { | 17 } gModes[] = { |
18 { SkXfermode::kClear_Mode, "Clear" }, | 18 { SkBlendMode::kClear, "Clear" }, |
19 { SkXfermode::kSrc_Mode, "Src" }, | 19 { SkBlendMode::kSrc, "Src" }, |
20 { SkXfermode::kDst_Mode, "Dst" }, | 20 { SkBlendMode::kDst, "Dst" }, |
21 { SkXfermode::kSrcOver_Mode, "SrcOver" }, | 21 { SkBlendMode::kSrcOver, "SrcOver" }, |
22 { SkXfermode::kDstOver_Mode, "DstOver" }, | 22 { SkBlendMode::kDstOver, "DstOver" }, |
23 { SkXfermode::kSrcIn_Mode, "SrcIn" }, | 23 { SkBlendMode::kSrcIn, "SrcIn" }, |
24 { SkXfermode::kDstIn_Mode, "DstIn" }, | 24 { SkBlendMode::kDstIn, "DstIn" }, |
25 { SkXfermode::kSrcOut_Mode, "SrcOut" }, | 25 { SkBlendMode::kSrcOut, "SrcOut" }, |
26 { SkXfermode::kDstOut_Mode, "DstOut" }, | 26 { SkBlendMode::kDstOut, "DstOut" }, |
27 { SkXfermode::kSrcATop_Mode, "SrcATop" }, | 27 { SkBlendMode::kSrcATop, "SrcATop" }, |
28 { SkXfermode::kDstATop_Mode, "DstATop" }, | 28 { SkBlendMode::kDstATop, "DstATop" }, |
29 { SkXfermode::kXor_Mode, "Xor" }, | 29 { SkBlendMode::kXor, "Xor" }, |
30 }; | 30 }; |
31 | 31 |
32 const int gWidth = 64; | 32 const int gWidth = 64; |
33 const int gHeight = 64; | 33 const int gHeight = 64; |
34 const SkScalar W = SkIntToScalar(gWidth); | 34 const SkScalar W = SkIntToScalar(gWidth); |
35 const SkScalar H = SkIntToScalar(gHeight); | 35 const SkScalar H = SkIntToScalar(gHeight); |
36 | 36 |
37 static SkScalar drawCell(SkCanvas* canvas, sk_sp<SkXfermode> mode, SkAlpha a0, S
kAlpha a1) { | 37 static SkScalar drawCell(SkCanvas* canvas, SkBlendMode mode, SkAlpha a0, SkAlpha
a1) { |
38 SkPaint paint; | 38 SkPaint paint; |
39 paint.setAntiAlias(true); | 39 paint.setAntiAlias(true); |
40 | 40 |
41 SkRect r = SkRect::MakeWH(W, H); | 41 SkRect r = SkRect::MakeWH(W, H); |
42 r.inset(W/10, H/10); | 42 r.inset(W/10, H/10); |
43 | 43 |
44 paint.setColor(SK_ColorBLUE); | 44 paint.setColor(SK_ColorBLUE); |
45 paint.setAlpha(a0); | 45 paint.setAlpha(a0); |
46 canvas->drawOval(r, paint); | 46 canvas->drawOval(r, paint); |
47 | 47 |
48 paint.setColor(SK_ColorRED); | 48 paint.setColor(SK_ColorRED); |
49 paint.setAlpha(a1); | 49 paint.setAlpha(a1); |
50 paint.setXfermode(mode); | 50 paint.setBlendMode(mode); |
51 for (int angle = 0; angle < 24; ++angle) { | 51 for (int angle = 0; angle < 24; ++angle) { |
52 SkScalar x = SkScalarCos(SkIntToScalar(angle) * (SK_ScalarPI * 2) / 24)
* gWidth; | 52 SkScalar x = SkScalarCos(SkIntToScalar(angle) * (SK_ScalarPI * 2) / 24)
* gWidth; |
53 SkScalar y = SkScalarSin(SkIntToScalar(angle) * (SK_ScalarPI * 2) / 24)
* gHeight; | 53 SkScalar y = SkScalarSin(SkIntToScalar(angle) * (SK_ScalarPI * 2) / 24)
* gHeight; |
54 paint.setStrokeWidth(SK_Scalar1 * angle * 2 / 24); | 54 paint.setStrokeWidth(SK_Scalar1 * angle * 2 / 24); |
55 canvas->drawLine(W/2, H/2, W/2 + x, H/2 + y, paint); | 55 canvas->drawLine(W/2, H/2, W/2 + x, H/2 + y, paint); |
56 } | 56 } |
57 | 57 |
58 return H; | 58 return H; |
59 } | 59 } |
60 | 60 |
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98 canvas->save(); | 98 canvas->save(); |
99 canvas->save(); | 99 canvas->save(); |
100 for (size_t i = 0; i < SK_ARRAY_COUNT(gModes); ++i) { | 100 for (size_t i = 0; i < SK_ARRAY_COUNT(gModes); ++i) { |
101 if (6 == i) { | 101 if (6 == i) { |
102 canvas->restore(); | 102 canvas->restore(); |
103 canvas->translate(W * 5, 0); | 103 canvas->translate(W * 5, 0); |
104 canvas->save(); | 104 canvas->save(); |
105 } | 105 } |
106 canvas->drawRect(bounds, fBGPaint); | 106 canvas->drawRect(bounds, fBGPaint); |
107 canvas->saveLayer(&bounds, nullptr); | 107 canvas->saveLayer(&bounds, nullptr); |
108 SkScalar dy = drawCell(canvas, SkXfermode::Make(gModes[i].fMode)
, | 108 SkScalar dy = drawCell(canvas, gModes[i].fMode, |
109 gAlphaValue[alpha & 1], | 109 gAlphaValue[alpha & 1], |
110 gAlphaValue[alpha & 2]); | 110 gAlphaValue[alpha & 2]); |
111 canvas->restore(); | 111 canvas->restore(); |
112 | 112 |
113 canvas->translate(0, dy * 5 / 4); | 113 canvas->translate(0, dy * 5 / 4); |
114 } | 114 } |
115 canvas->restore(); | 115 canvas->restore(); |
116 canvas->restore(); | 116 canvas->restore(); |
117 canvas->translate(W * 5 / 4, 0); | 117 canvas->translate(W * 5 / 4, 0); |
118 } | 118 } |
119 } | 119 } |
120 | 120 |
121 private: | 121 private: |
122 typedef SampleView INHERITED; | 122 typedef SampleView INHERITED; |
123 }; | 123 }; |
124 | 124 |
125 /////////////////////////////////////////////////////////////////////////////// | 125 /////////////////////////////////////////////////////////////////////////////// |
126 | 126 |
127 static SkView* MyFactory() { return new HairModesView; } | 127 static SkView* MyFactory() { return new HairModesView; } |
128 static SkViewRegister reg(MyFactory); | 128 static SkViewRegister reg(MyFactory); |
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