mirui 0.28.2

A lightweight, no_std ECS-driven UI framework for embedded, 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
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155

#[cfg(feature = "std")]
use crate::app::{App, RendererFactory};
use crate::ecs::{Entity, World};
use crate::event::scroll::{ScrollAxis, ScrollConfig, ScrollOffset};
#[cfg(feature = "std")]
use crate::plugins::input_feedback::InputFeedbackPlugin;
use crate::prelude::*;
#[cfg(feature = "std")]
use crate::surface::Surface;

pub fn build_widgets(world: &mut World, parent: Entity) {
    let colors_outer = [
        Color::rgb(60, 60, 90),
        Color::rgb(70, 50, 80),
        Color::rgb(50, 70, 80),
        Color::rgb(80, 60, 60),
        Color::rgb(60, 80, 60),
    ];

    let colors_inner = [
        Color::rgb(88, 166, 255),
        Color::rgb(63, 185, 80),
        Color::rgb(248, 81, 73),
        Color::rgb(210, 168, 255),
        Color::rgb(255, 200, 50),
        Color::rgb(100, 200, 150),
    ];

    ui! {
        :(
            parent: parent
            world: world
        :)

        Column (
            grow: 1.0,
            bg_color: Color::rgb(30, 30, 50),
            padding: Padding {
                top: Dimension::px(20),
                left: Dimension::px(20),
                right: Dimension::px(20),
                bottom: Dimension::px(20),
            }
        ) [
            ScrollOffset {
                x: Fixed::ZERO,
                y: Fixed::ZERO,
            },
            ScrollConfig {
                direction: ScrollAxis::Vertical,
                elastic: true,
                content_height: Fixed::from_int(1200),
                content_width: Fixed::ZERO,
            },
        ] {
            walk colors_outer.iter().enumerate() with item {
                Column (
                    height: 200,
                    bg_color: *item.1,
                    border_radius: 6
                ) {
                    View (height: 30, text: "Section", bg_color: Color::rgb(40, 40, 60))
                    Row (grow: 1.0) [
                        ScrollOffset {
                            x: Fixed::ZERO,
                            y: Fixed::ZERO,
                        },
                        ScrollConfig {
                            direction: ScrollAxis::Horizontal,
                            elastic: true,
                            content_height: Fixed::ZERO,
                            content_width: Fixed::from_int(600),
                        },
                    ] {
                        walk colors_inner.iter() with color {
                            View (width: 100, height: 150, bg_color: *color, border_radius: 8)
                        }
                    }
                }
            }
            Column (
                height: 300,
                bg_color: Color::rgb(50, 40, 70),
                border_radius: 6
            ) {
                View (
                    height: 30,
                    text: "Nested V-Scroll",
                    bg_color: Color::rgb(60, 30, 80)
                )
                Column (
                    grow: 1.0,
                    bg_color: Color::rgb(40, 35, 60),
                    padding: Padding {
                        top: Dimension::px(8),
                        left: Dimension::px(8),
                        right: Dimension::px(8),
                        bottom: Dimension::px(8),
                    }
                ) [
                    ScrollOffset {
                        x: Fixed::ZERO,
                        y: Fixed::ZERO,
                    },
                    ScrollConfig {
                        direction: ScrollAxis::Vertical,
                        elastic: true,
                        content_height: Fixed::from_int(500),
                        content_width: Fixed::ZERO,
                    },
                ] {
                    walk colors_inner.iter().enumerate() with item {
                        View (
                            height: 80,
                            bg_color: *item.1,
                            border_radius: 6,
                            text: "V-Item"
                        )
                    }
                }
            }
        }
    };
}

#[cfg(feature = "std")]
pub fn setup_app<B, F>(app: &mut App<B, F>, parent: Entity)
where
    B: Surface,
    F: RendererFactory<B>,
{
    app.add_plugin(InputFeedbackPlugin::new());
    build_widgets(&mut app.world, parent);
}

#[cfg(test)]
mod tests {
    use super::*;
    use crate::widget::Children;
    use crate::widget::IdMap;
    use crate::widget::builder::WidgetBuilder;

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