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
|
/*
* Copyright 2011 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 "SkCullPoints.h"
#include "SkRandom.h"
static void test_hittest(SkCanvas* canvas, const SkPath& path) {
SkPaint paint;
SkRect r = path.getBounds();
paint.setColor(SK_ColorRED);
canvas->drawPath(path, paint);
const SkScalar MARGIN = SkIntToScalar(4);
paint.setColor(0x800000FF);
for (SkScalar y = r.fTop + SK_ScalarHalf - MARGIN; y < r.fBottom + MARGIN; y += SK_Scalar1) {
for (SkScalar x = r.fLeft + SK_ScalarHalf - MARGIN; x < r.fRight + MARGIN; x += SK_Scalar1) {
if (path.contains(x, y)) {
canvas->drawPoint(x, y, paint);
}
}
}
}
class HitTestPathGM : public skiagm::GM {
public:
HitTestPathGM () {}
protected:
virtual SkString onShortName() {
return SkString("hittestpath");
}
virtual SkISize onISize() { return SkISize::Make(700, 460); }
virtual void onDraw(SkCanvas* canvas) {
SkPath path;
SkRandom rand;
int scale = 300;
for (int i = 0; i < 4; ++i) {
path.lineTo(rand.nextUScalar1() * scale, rand.nextUScalar1() * scale);
path.quadTo(rand.nextUScalar1() * scale, rand.nextUScalar1() * scale,
rand.nextUScalar1() * scale, rand.nextUScalar1() * scale);
path.cubicTo(rand.nextUScalar1() * scale, rand.nextUScalar1() * scale,
rand.nextUScalar1() * scale, rand.nextUScalar1() * scale,
rand.nextUScalar1() * scale, rand.nextUScalar1() * scale);
}
path.setFillType(SkPath::kEvenOdd_FillType);
path.offset(SkIntToScalar(20), SkIntToScalar(20));
test_hittest(canvas, path);
canvas->translate(SkIntToScalar(scale), 0);
path.setFillType(SkPath::kWinding_FillType);
test_hittest(canvas, path);
}
private:
typedef GM INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
static skiagm::GM* MyFactory(void*) { return new HitTestPathGM; }
static skiagm::GMRegistry reg(MyFactory);
|
