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
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
|
#include "gm.h"
#include "SkPicture.h"
#include "SkRectShape.h"
#include "SkGroupShape.h"
typedef SkScalar (*MakePathProc)(SkPath*);
static SkScalar make_frame(SkPath* path) {
SkRect r = { 10, 10, 630, 470 };
path->addRoundRect(r, 15, 15);
SkPaint paint;
paint.setStyle(SkPaint::kStroke_Style);
paint.setStrokeWidth(5);
paint.getFillPath(*path, path);
return 15;
}
static SkScalar make_triangle(SkPath* path) {
static const int gCoord[] = {
10, 20, 15, 5, 30, 30
};
path->moveTo(SkIntToScalar(gCoord[0]), SkIntToScalar(gCoord[1]));
path->lineTo(SkIntToScalar(gCoord[2]), SkIntToScalar(gCoord[3]));
path->lineTo(SkIntToScalar(gCoord[4]), SkIntToScalar(gCoord[5]));
path->close();
path->offset(10, 0);
return SkIntToScalar(30);
}
static SkScalar make_rect(SkPath* path) {
SkRect r = { 10, 10, 30, 30 };
path->addRect(r);
path->offset(10, 0);
return SkIntToScalar(30);
}
static SkScalar make_oval(SkPath* path) {
SkRect r = { 10, 10, 30, 30 };
path->addOval(r);
path->offset(10, 0);
return SkIntToScalar(30);
}
static SkScalar make_sawtooth(SkPath* path) {
SkScalar x = SkIntToScalar(20);
SkScalar y = SkIntToScalar(20);
const SkScalar x0 = x;
const SkScalar dx = SK_Scalar1 * 5;
const SkScalar dy = SK_Scalar1 * 10;
path->moveTo(x, y);
for (int i = 0; i < 32; i++) {
x += dx;
path->lineTo(x, y - dy);
x += dx;
path->lineTo(x, y + dy);
}
path->lineTo(x, y + 2 * dy);
path->lineTo(x0, y + 2 * dy);
path->close();
return SkIntToScalar(30);
}
static SkScalar make_star(SkPath* path, int n) {
const SkScalar c = SkIntToScalar(45);
const SkScalar r = SkIntToScalar(20);
SkScalar rad = -SK_ScalarPI / 2;
const SkScalar drad = (n >> 1) * SK_ScalarPI * 2 / n;
path->moveTo(c, c - r);
for (int i = 1; i < n; i++) {
rad += drad;
SkScalar cosV, sinV = SkScalarSinCos(rad, &cosV);
path->lineTo(c + SkScalarMul(cosV, r), c + SkScalarMul(sinV, r));
}
path->close();
return r * 2 * 6 / 5;
}
static SkScalar make_star_5(SkPath* path) { return make_star(path, 5); }
static SkScalar make_star_13(SkPath* path) { return make_star(path, 13); }
static const MakePathProc gProcs[] = {
make_frame,
make_triangle,
make_rect,
make_oval,
make_sawtooth,
make_star_5,
make_star_13
};
#define N SK_ARRAY_COUNT(gProcs)
namespace skiagm {
class PathFillGM : public GM {
SkPath fPath[N];
SkScalar fDY[N];
public:
PathFillGM() {
for (size_t i = 0; i < N; i++) {
fDY[i] = gProcs[i](&fPath[i]);
}
}
protected:
virtual SkString onShortName() {
return SkString("pathfill");
}
virtual SkISize onISize() {
return make_isize(640, 480);
}
void drawBG(SkCanvas* canvas) {
canvas->drawColor(SK_ColorWHITE);
}
virtual void onDraw(SkCanvas* canvas) {
this->drawBG(canvas);
SkPaint paint;
paint.setAntiAlias(true);
for (size_t i = 0; i < N; i++) {
canvas->drawPath(fPath[i], paint);
canvas->translate(0, fDY[i]);
}
}
private:
typedef GM INHERITED;
};
///////////////////////////////////////////////////////////////////////////////
static GM* MyFactory(void*) { return new PathFillGM; }
static GMRegistry reg(MyFactory);
}
|
