bevy_material_ui 0.2.7

Material Design 3 UI components for Bevy game engine
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

//! Select Demo
//!
//! Demonstrates Material Design 3 select (dropdown) controls.

use bevy::prelude::*;
use bevy_material_ui::prelude::*;

#[derive(Component)]
struct SelectDemoRoot;

fn main() {
    App::new()
        .add_plugins(DefaultPlugins)
        .add_plugins(MaterialUiPlugin)
        .add_plugins(TelemetryPlugin)
        .add_systems(Startup, setup)
        .add_systems(Update, attach_select_test_ids)
        .run();
}

fn setup(mut commands: Commands, theme: Res<MaterialTheme>, telemetry: Res<TelemetryConfig>) {
    commands.spawn(Camera2d);

    commands
        .spawn((
            SelectDemoRoot,
            Node {
                width: Val::Percent(100.0),
                height: Val::Percent(100.0),
                flex_direction: FlexDirection::Column,
                justify_content: JustifyContent::Center,
                align_items: AlignItems::Center,
                padding: UiRect::all(Val::Px(24.0)),
                row_gap: Val::Px(16.0),
                ..default()
            },
            BackgroundColor(theme.surface),
        ))
        .insert_test_id("select_demo/root", &telemetry)
        .with_children(|root| {
            // Use enough options to demonstrate a scrollable dropdown.
            let options = (1..=40)
                .map(|i| SelectOption::new(format!("Option {i}")))
                .collect::<Vec<_>>();

            root.spawn((
                Text::new("Select"),
                TextFont {
                    font_size: 20.0,
                    ..default()
                },
                TextColor(theme.on_surface),
            ));

            root.spawn(Node {
                flex_direction: FlexDirection::Column,
                row_gap: Val::Px(12.0),
                ..default()
            })
            .with_children(|col| {
                col.spawn_select_with(
                    &theme,
                    SelectBuilder::new(options.clone())
                        .label("Options (Filled)")
                        .filled()
                        .selected(0)
                        .dropdown_max_height(Val::Px(240.0))
                        .virtualize(true)
                        .width(Val::Px(320.0)),
                );

                col.spawn_select_with(
                    &theme,
                    SelectBuilder::new(options.clone())
                        .label("Options (Outlined)")
                        .outlined()
                        .selected(1)
                        .dropdown_max_height(Val::Px(240.0))
                        .virtualize(true)
                        .width(Val::Px(320.0)),
                );

                col.spawn_select_with(
                    &theme,
                    SelectBuilder::new(options)
                        .label("Disabled")
                        .filled()
                        .disabled(true)
                        .width(Val::Px(320.0)),
                );
            });
        });
}

fn attach_select_test_ids(
    mut commands: Commands,
    telemetry: Res<TelemetryConfig>,
    selects: Query<(Entity, &MaterialSelect), Added<MaterialSelect>>,
) {
    if !telemetry.enabled {
        return;
    }

    for (entity, select) in selects.iter() {
        let Some(label) = select.label.as_deref() else {
            continue;
        };

        let id = match label {
            "Fruit (Filled)" => "select_demo/select/fruit_filled",
            "Fruit (Outlined)" => "select_demo/select/fruit_outlined",
            "Disabled" => "select_demo/select/disabled",
            _ => continue,
        };

        commands.entity(entity).insert(TestId::new(id));
    }
}