[go: up one dir, main page]

raqote 0.4.0

2D graphics library
Documentation 
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

#[cfg(test)]
mod tests {
    use crate::draw_target::*;
    use crate::path_builder::*;

    #[test]
    fn basic_rasterizer() {
        let mut dt = DrawTarget::new(2, 2);
        let mut pb = PathBuilder::new();
        pb.rect(1., 1., 1., 1.);
        dt.fill(
            &pb.finish(),
            &Source::Solid(SolidSource {
                r: 0xff,
                g: 0xff,
                b: 0xff,
                a: 0xff,
            }),
            &DrawOptions::new(),
        );
        let white = 0xffffffff;
        assert_eq!(dt.get_data(), &vec![0, 0, 0, white][..])
    }

    #[test]
    fn clip_rect() {
        let mut dt = DrawTarget::new(2, 2);
        dt.push_clip_rect(intrect(1, 1, 2, 2));
        let mut pb = PathBuilder::new();
        pb.rect(0., 0., 2., 2.);
        dt.fill(
            &pb.finish(),
            &Source::Solid(SolidSource {
                r: 0xff,
                g: 0xff,
                b: 0xff,
                a: 0xff,
            }),
            &DrawOptions::new(),
        );
        let white = 0xffffffff;
        assert_eq!(dt.get_data(), &vec![0, 0, 0, white][..])
    }

    #[test]
    fn nested_clip_rect() {
        let mut dt = DrawTarget::new(2, 2);
        dt.push_clip_rect(intrect(0, 1, 2, 2));
        dt.push_clip_rect(intrect(1, 0, 2, 2));
        let mut pb = PathBuilder::new();
        pb.rect(0., 0., 2., 2.);
        dt.fill(
            &pb.finish(),
            &Source::Solid(SolidSource {
                r: 0xff,
                g: 0xff,
                b: 0xff,
                a: 0xff,
            }),
            &DrawOptions::new(),
        );
        let white = 0xffffffff;
        assert_eq!(dt.get_data(), &vec![0, 0, 0, white][..])
    }

    #[test]
    fn even_odd_rect() {
        let mut dt = DrawTarget::new(2, 2);
        let mut pb = PathBuilder::new();
        pb.rect(0., 0., 2., 2.);
        pb.rect(0., 0., 2., 2.);
        pb.rect(1., 1., 2., 2.);
        let mut path = pb.finish();
        path.winding = Winding::EvenOdd;
        dt.fill(
            &path,
            &Source::Solid(SolidSource {
                r: 0xff,
                g: 0xff,
                b: 0xff,
                a: 0xff,
            }),
            &DrawOptions::new(),
        );
        let white = 0xffffffff;
        assert_eq!(dt.get_data(), &vec![0, 0, 0, white][..])
    }

    #[test]
    fn clear() {
        let mut dt = DrawTarget::new(2, 2);
        let mut pb = PathBuilder::new();
        pb.rect(0., 0., 2., 2.);
        let mut path = pb.finish();
        dt.fill(
            &path,
            &Source::Solid(SolidSource {
                r: 0xff,
                g: 0xff,
                b: 0xff,
                a: 0xff,
            }),
            &DrawOptions::new(),
        );
        dt.clear(SolidSource { r: 0, g: 0, b: 0, a: 0 });
        assert_eq!(dt.get_data(), &vec![0, 0, 0, 0][..])
    }

    #[test]
    fn basic_push_layer() {
        let mut dt = DrawTarget::new(2, 2);
        let mut pb = PathBuilder::new();
        dt.push_clip_rect(intrect(1, 1, 2, 2));
        dt.push_layer(1.);
        pb.rect(1., 1., 1., 1.);
        dt.fill(
            &pb.finish(),
            &Source::Solid(SolidSource {
                r: 0xff,
                g: 0xff,
                b: 0xff,
                a: 0xff,
            }),
            &DrawOptions::new(),
        );
        let white = 0xffffffff;
        dt.pop_layer();
        assert_eq!(dt.get_data(), &vec![0, 0, 0, white][..])
    }
}