mirui 0.46.3

A lightweight, no_std ECS-driven UI framework for embedded, mobile, desktop, and WebAssembly
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
131
132
133
134
135
136

extern crate alloc;

use crate::prelude::*;
use crate::types::Transform;
use crate::ui::widgets::{Image, ParagraphStyle, Text, TextAlign, WidgetTransform};

pub struct Spinner {
    pub angle: Fixed,
    pub speed: Fixed,
}

//~focus-start
#[mirui_macros::system(order = ANIMATION)]
pub fn spin_system(world: &mut World) {
    world.for_each_stable::<Spinner>(|world, e| {
        let next = if let Some(s) = world.get_mut::<Spinner>(e) {
            s.angle += s.speed;
            s.angle
        } else {
            return;
        };
        world.insert(e, WidgetTransform(Transform::rotate_deg(next)));
        world.invalidate(e);
    });
}
//~focus-end

#[compose]
pub fn build_widgets() {
    ui! {
        Column (
            grow: 1.0,
            align: AlignItems::Center,
            padding: Padding::all(12),
            row_gap: 10
        ) {
            Text (
                "AFFINE TRANSFORMS",
                width: Dimension::percent(100),
                max_width: 440,
                height: 28,
                font_size: 17,
                text_color: ColorToken::OnSurface,
                paragraph: ParagraphStyle::label().with_align(TextAlign::Start)
            )
            Row (
                width: Dimension::percent(100),
                max_width: 440,
                grow: 1.0,
                align: AlignItems::Center,
                justify: JustifyContent::SpaceAround,
                padding: Padding::all(18),
                bg_color: ColorToken::SurfaceVariant,
                border_radius: 18
            ) {
                Column (width: 120, align: AlignItems::Center, row_gap: 14) {
                    View (
                        width: 76,
                        height: 76,
                        bg_color: Color::rgb(248, 81, 73),
                        border_radius: 14
                    ) [
                        Spinner {
                            angle: Fixed::ZERO,
                            speed: Fixed::from_int(2),
                        },
                        WidgetTransform(Transform::IDENTITY),
                    ]
                    Text (
                        "VIEW",
                        width: 76,
                        height: 22,
                        font_size: 10,
                        text_color: ColorToken::OnSurfaceVariant,
                        paragraph: ParagraphStyle::label()
                    )
                }
                Column (width: 120, align: AlignItems::Center, row_gap: 14) {
                    Image (
                        width: 70,
                        height: 70,
                        src: "thumbs_up"
                    ) [
                        Spinner {
                            angle: Fixed::ZERO,
                            speed: Fixed::from_int(3),
                        },
                        WidgetTransform(Transform::IDENTITY),
                    ]
                    Text (
                        "IMAGE",
                        width: 76,
                        height: 22,
                        font_size: 10,
                        text_color: ColorToken::OnSurfaceVariant,
                        paragraph: ParagraphStyle::label()
                    )
                }
            }
        }
    };
}

#[cfg(feature = "std")]
pub fn setup_app<B, F>(app: &mut App<B, F>, parent: Entity)
where
    B: Surface,
    F: RendererFactory<B>,
{
    app.add_system(spin_system::system());
    app.add_plugin(crate::app::plugins::ImageResourcesPlugin::default());
    app.compose(parent, build_widgets);
}

pub const DEMO_SIZE: crate::gallery::DemoSize = crate::gallery::DemoSize::at_most(480, 320);

#[cfg(test)]
mod tests {
    use super::*;
    use crate::ui::{Children, IdMap, UiScope};

    #[test]
    fn build_widgets_smoke() {
        let mut world = World::new();
        world.insert_resource(IdMap::new());
        let parent = WidgetBuilder::new(&mut world).id();
        let mut cx = UiScope::new(&mut world, parent);
        build_widgets(&mut cx);
        drop(cx);
        assert!(
            world
                .get::<Children>(parent)
                .is_some_and(|c| !c.0.is_empty()),
        );
    }
}