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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 "SkCanvas.h" | 9 #include "SkCanvas.h" |
10 #include "SkColorPriv.h" | 10 #include "SkColorPriv.h" |
11 #include "SkGradientShader.h" | 11 #include "SkGradientShader.h" |
12 #include "SkPath.h" | 12 #include "SkPath.h" |
13 #include "SkUtils.h" | 13 #include "SkUtils.h" |
14 #include "SkView.h" | 14 #include "SkView.h" |
15 | 15 |
16 static void draw_rect(SkCanvas* canvas, const SkRect& r, const SkPaint& p) { | 16 static void draw_rect(SkCanvas* canvas, const SkRect& r, const SkPaint& p) { |
17 canvas->drawRect(r, p); | 17 canvas->drawRect(r, p); |
18 | 18 |
19 SkPaint frame(p); | 19 SkPaint frame(p); |
20 frame.setShader(NULL); | 20 frame.setShader(nullptr); |
21 frame.setStyle(SkPaint::kStroke_Style); | 21 frame.setStyle(SkPaint::kStroke_Style); |
22 canvas->drawRect(r, frame); | 22 canvas->drawRect(r, frame); |
23 } | 23 } |
24 | 24 |
25 static void draw_gradient(SkCanvas* canvas) { | 25 static void draw_gradient(SkCanvas* canvas) { |
26 SkRect r = { 0, 0, SkIntToScalar(256), SkIntToScalar(32) }; | 26 SkRect r = { 0, 0, SkIntToScalar(256), SkIntToScalar(32) }; |
27 SkPoint pts[] = { { r.fLeft, r.fTop }, { r.fRight, r.fTop } }; | 27 SkPoint pts[] = { { r.fLeft, r.fTop }, { r.fRight, r.fTop } }; |
28 SkColor colors[] = { 0xFF000000, 0xFFFF0000 }; | 28 SkColor colors[] = { 0xFF000000, 0xFFFF0000 }; |
29 SkShader* s = SkGradientShader::CreateLinear(pts, colors, NULL, 2, | 29 SkShader* s = SkGradientShader::CreateLinear(pts, colors, nullptr, 2, |
30 SkShader::kClamp_TileMode); | 30 SkShader::kClamp_TileMode); |
31 | 31 |
32 SkPaint p; | 32 SkPaint p; |
33 p.setShader(s)->unref(); | 33 p.setShader(s)->unref(); |
34 draw_rect(canvas, r, p); | 34 draw_rect(canvas, r, p); |
35 | 35 |
36 canvas->translate(0, SkIntToScalar(40)); | 36 canvas->translate(0, SkIntToScalar(40)); |
37 p.setDither(true); | 37 p.setDither(true); |
38 draw_rect(canvas, r, p); | 38 draw_rect(canvas, r, p); |
39 } | 39 } |
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55 | 55 |
56 static SkBitmap make_bitmap() { | 56 static SkBitmap make_bitmap() { |
57 SkPMColor c[256]; | 57 SkPMColor c[256]; |
58 for (int i = 0; i < 256; i++) { | 58 for (int i = 0; i < 256; i++) { |
59 c[i] = SkPackARGB32(0xFF, i, 0, 0); | 59 c[i] = SkPackARGB32(0xFF, i, 0, 0); |
60 } | 60 } |
61 SkColorTable* ctable = new SkColorTable(c, 256); | 61 SkColorTable* ctable = new SkColorTable(c, 256); |
62 | 62 |
63 SkBitmap bm; | 63 SkBitmap bm; |
64 bm.allocPixels(SkImageInfo::Make(256, 32, kIndex_8_SkColorType, kPremul_SkAl
phaType), | 64 bm.allocPixels(SkImageInfo::Make(256, 32, kIndex_8_SkColorType, kPremul_SkAl
phaType), |
65 NULL, ctable); | 65 nullptr, ctable); |
66 ctable->unref(); | 66 ctable->unref(); |
67 | 67 |
68 bm.lockPixels(); | 68 bm.lockPixels(); |
69 for (int y = 0; y < bm.height(); y++) { | 69 for (int y = 0; y < bm.height(); y++) { |
70 uint8_t* p = bm.getAddr8(0, y); | 70 uint8_t* p = bm.getAddr8(0, y); |
71 for (int x = 0; x < 256; x++) { | 71 for (int x = 0; x < 256; x++) { |
72 p[x] = x; | 72 p[x] = x; |
73 } | 73 } |
74 } | 74 } |
75 bm.unlockPixels(); | 75 bm.unlockPixels(); |
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142 } | 142 } |
143 | 143 |
144 private: | 144 private: |
145 typedef SampleView INHERITED; | 145 typedef SampleView INHERITED; |
146 }; | 146 }; |
147 | 147 |
148 ////////////////////////////////////////////////////////////////////////////// | 148 ////////////////////////////////////////////////////////////////////////////// |
149 | 149 |
150 static SkView* MyFactory() { return new DitherBitmapView; } | 150 static SkView* MyFactory() { return new DitherBitmapView; } |
151 static SkViewRegister reg(MyFactory); | 151 static SkViewRegister reg(MyFactory); |
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