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
78
79
80
81
82
83
84
|
/*
* Copyright 2015 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"
#include "SkCanvas.h"
#include "SkRRect.h"
#include "SkPath.h"
class ScaledStrokesGM : public skiagm::GM {
public:
ScaledStrokesGM() {}
protected:
SkString onShortName() override {
return SkString("scaledstrokes");
}
SkISize onISize() override {
return SkISize::Make(640, 320);
}
static void draw_path(SkScalar size, SkCanvas* canvas, SkPaint paint) {
SkScalar c = 0.551915024494f * size;
SkPath path;
path.moveTo(0.0f, size);
path.cubicTo(c, size, size, c, size, 0.0f);
path.cubicTo(size, -c, c, -size, 0.0f, -size);
path.cubicTo(-c, -size, -size, -c, -size, 0.0f);
path.cubicTo(-size, c, -c, size, 0.0f, size);
canvas->drawPath(path, paint);
}
void onDraw(SkCanvas* canvas) override {
SkPaint paint;
SkPath path;
paint.setStyle(SkPaint::Style::kStroke_Style);
canvas->translate(5.0f, 5.0f);
const SkScalar size = 60.0f;
for (int i = 0; i < 2; i++) {
paint.setAntiAlias(i == 1);
canvas->save();
for (int j = 0; j < 4; j++) {
SkScalar scale = 4.0f - j;
paint.setStrokeWidth(4.0f / scale);
canvas->save();
canvas->translate(size / 2.0f, size / 2.0f);
canvas->scale(scale, scale);
draw_path(size / 2.0f / scale, canvas, paint);
canvas->restore();
canvas->save();
canvas->translate(size / 2.0f, 80.0f + size / 2.0f);
canvas->scale(scale, scale);
canvas->drawCircle(0.0f, 0.0f, size / 2.0f / scale, paint);
canvas->restore();
canvas->save();
canvas->translate(0.0f, 160.0f);
canvas->scale(scale, scale);
canvas->drawRect(SkRect::MakeXYWH(0.0f, 0.0f, size / scale, size / scale), paint);
canvas->restore();
canvas->save();
canvas->translate(0.0f, 240.0f);
canvas->scale(scale, scale);
canvas->drawLine(0.0f, 0.0f, size / scale, size / scale, paint);
canvas->restore();
canvas->translate(80.0f, 0.0f);
}
}
}
private:
typedef GM INHERITED;
};
DEF_GM( return new ScaledStrokesGM; )
|
