1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
/*
* Copyright 2013 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "gm.h"
namespace skiagm {
// Draw rects with various stroke widths at 1/8 pixel increments
class ThinStrokedRectsGM : public GM {
public:
ThinStrokedRectsGM() {
this->setBGColor(0xFF000000);
}
protected:
SkString onShortName() override {
return SkString("thinstrokedrects");
}
SkISize onISize() override {
return SkISize::Make(240, 320);
}
void onDraw(SkCanvas* canvas) override {
SkPaint paint;
paint.setColor(SK_ColorWHITE);
paint.setStyle(SkPaint::kStroke_Style);
paint.setAntiAlias(true);
constexpr SkRect rect = { 0, 0, 10, 10 };
constexpr SkRect rect2 = { 0, 0, 20, 20 };
constexpr SkScalar gStrokeWidths[] = {
4, 2, 1, 0.5f, 0.25f, 0.125f, 0
};
canvas->translate(5, 5);
for (int i = 0; i < 8; ++i) {
canvas->save();
canvas->translate(i*0.125f, i*30.0f);
for (size_t j = 0; j < SK_ARRAY_COUNT(gStrokeWidths); ++j) {
paint.setStrokeWidth(gStrokeWidths[j]);
canvas->drawRect(rect, paint);
canvas->translate(15, 0);
}
canvas->restore();
}
// Draw a second time in red with a scale
paint.setColor(SK_ColorRED);
canvas->translate(0, 15);
for (int i = 0; i < 8; ++i) {
canvas->save();
canvas->translate(i*0.125f, i*30.0f);
canvas->scale(0.5f, 0.5f);
for (size_t j = 0; j < SK_ARRAY_COUNT(gStrokeWidths); ++j) {
paint.setStrokeWidth(2.0f * gStrokeWidths[j]);
canvas->drawRect(rect2, paint);
canvas->translate(30, 0);
}
canvas->restore();
}
}
private:
typedef GM INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
DEF_GM(return new ThinStrokedRectsGM;)
}
|
