bevy_vista 0.17.0

A visual UI editor plugin for Bevy with inspector-driven editing and .vista.ron serialization.
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

use bevy::app::PostUpdate;
use bevy_vista_macros::ShowInInspector;

use super::*;

pub struct ButtonWidgetPlugin;

impl Plugin for ButtonWidgetPlugin {
    fn build(&self, app: &mut App) {
        app.add_systems(
            PostUpdate,
            (update_button_widgets_on_changed, button_on_hover),
        );
    }
}

fn update_button_widgets_on_changed(
    mut query: Query<(&ButtonWidget, &mut BackgroundColor), Changed<ButtonWidget>>,
) {
    for (options, mut bg_color) in query.iter_mut() {
        bg_color.0 = options.bg_normal_color;
    }
}

fn button_on_hover(
    mut query: Query<(&mut BackgroundColor, &Interaction, &ButtonWidget), Changed<Interaction>>,
) {
    for (mut bg, interaction, options) in query.iter_mut() {
        let color = match *interaction {
            Interaction::None => options.bg_normal_color,
            Interaction::Hovered => options.bg_hover_color,
            Interaction::Pressed => options.bg_pressed_color,
        };

        if bg.0 != color {
            bg.0 = color;
        }
    }
}

#[derive(Debug, Clone)]
pub struct ButtonBuilder {
    pub text: String,
    pub width: Val,
    pub height: Val,
}

impl Default for ButtonBuilder {
    fn default() -> Self {
        Self::new()
    }
}

impl ButtonBuilder {
    pub fn new() -> Self {
        Self {
            text: "Button".to_owned(),
            width: Val::Px(120.),
            height: Val::Px(40.),
        }
    }

    pub fn text(mut self, text: &str) -> Self {
        self.text = text.to_owned();
        self
    }

    pub fn width(mut self, width: Val) -> Self {
        self.width = width;
        self
    }

    pub fn height(mut self, height: Val) -> Self {
        self.height = height;
        self
    }

    pub fn build(self) -> impl Bundle {
        self.build_with(ButtonWidget::default())
    }

    pub fn build_with(self, widget: ButtonWidget) -> impl Bundle {
        let normal_color = widget.bg_normal_color;

        (
            Button,
            widget,
            Interaction::default(),
            Node {
                width: self.width,
                height: self.height,
                justify_content: JustifyContent::Center,
                align_items: AlignItems::Center,
                margin: UiRect::px(2., 2., 1., 1.),
                ..default()
            },
            BackgroundColor(normal_color),
            children![(LabelBuilder::new().text(self.text).build())],
        )
    }
}

impl DefaultWidgetBuilder for ButtonBuilder {
    fn spawn_default(commands: &mut Commands, _theme: Option<&crate::theme::Theme>) -> Entity {
        commands.spawn(ButtonBuilder::new().build()).id()
    }
}

#[derive(Widget, Reflect, Component, Clone, ShowInInspector)]
#[widget("common/button")]
#[builder(ButtonBuilder)]
pub struct ButtonWidget {
    #[property(label = "Normal")]
    pub bg_normal_color: Color,
    #[property(label = "Hover")]
    pub bg_hover_color: Color,
    #[property(label = "Pressed")]
    pub bg_pressed_color: Color,
    #[property(label = "Disabled")]
    pub bg_disabled_color: Color,
}

const BG_NORMAL_COLOR: Color = Color::srgb(0.486, 0.486, 0.529);
const BG_HOVER_COLOR: Color = Color::srgb(0.576, 0.576, 0.619);
const BG_PRESSED_COLOR: Color = Color::srgb(0.396, 0.396, 0.439);
const BG_DISABLED_COLOR: Color = Color::srgb(0.2, 0.2, 0.2);

impl Default for ButtonWidget {
    fn default() -> Self {
        Self {
            bg_normal_color: BG_NORMAL_COLOR,
            bg_hover_color: BG_HOVER_COLOR,
            bg_pressed_color: BG_PRESSED_COLOR,
            bg_disabled_color: BG_DISABLED_COLOR,
        }
    }
}