godoru 0.1.0

UI Framework for Rust using Godot
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

use super::{Color, Style, VisualState, mergeStyle};

#[derive(Clone, Debug, PartialEq, Eq)]
pub enum Component {
    Container,
    Text,
    Button,
    Image,
    Slider,
    Scroll,
    TextInput,
    Checkbox,
    ProgressBar,
    Modal,
}

#[derive(Clone, Debug, PartialEq)]
pub struct ThemeClass {
    pub component: Component,
    pub name: String,
    pub style: Style,
}

#[derive(Clone, Debug, PartialEq)]
pub struct AppTheme {
    pub backgroundColor: Color,
    pub classes: Vec<ThemeClass>,
}

impl AppTheme {
    pub fn new() -> Self {
        Self::default()
    }

    pub fn backgroundColor(mut self, color: Color) -> Self {
        self.backgroundColor = color;
        self
    }

    pub fn containerColor(mut self, color: Color) -> Self {
        self = self.class(Component::Container, "default", |style| {
            style.background(color);
        });
        self
    }

    pub fn accentColor(mut self, color: Color) -> Self {
        self = self.class(Component::Container, "accent", |style| {
            style.background(color);
        });
        self
    }

    pub fn class(
        mut self,
        component: Component,
        name: impl Into<String>,
        configure: impl FnOnce(&mut Style),
    ) -> Self {
        let name = name.into();
        let mut style = Style::default();
        configure(&mut style);
        if let Some(existing) = self
            .classes
            .iter_mut()
            .find(|item| item.component == component && item.name == name)
        {
            existing.style = style;
        } else {
            self.classes.push(ThemeClass {
                component,
                name,
                style,
            });
        }
        self
    }

    pub fn styleFor(&self, component: Component, class: Option<&str>) -> Style {
        self.styleForDepth(component, class, 0)
    }

    pub fn styleForState(
        &self,
        component: Component,
        class: Option<&str>,
        state: VisualState,
    ) -> Style {
        let mut style = self.styleFor(component.clone(), class);
        if state == VisualState::Normal {
            return style;
        }
        if let Some(class) = class {
            let pseudo = format!("{class}:{}", state.name());
            let pseudoStyle = self.styleFor(component, Some(&pseudo));
            mergeStyle(&mut style, &pseudoStyle);
        }
        style
    }

    fn styleForDepth(&self, component: Component, class: Option<&str>, depth: usize) -> Style {
        if depth > 16 {
            return Style::default();
        }

        let Some(class) = class else {
            return Style::default();
        };
        let Some(item) = self
            .classes
            .iter()
            .find(|item| item.component == component && item.name == class)
        else {
            return Style::default();
        };
        let mut style =
            self.styleForDepth(component.clone(), item.style.extends.as_deref(), depth + 1);
        mergeStyle(&mut style, &item.style);
        style
    }
}

impl VisualState {
    pub fn name(&self) -> &'static str {
        match self {
            VisualState::Normal => "normal",
            VisualState::Hover => "hover",
            VisualState::Pressed => "pressed",
            VisualState::Focus => "focus",
            VisualState::Checked => "checked",
            VisualState::Disabled => "disabled",
        }
    }
}

impl Default for AppTheme {
    fn default() -> Self {
        Self {
            backgroundColor: Color::rgb(0.08, 0.09, 0.11),
            classes: Vec::new(),
        }
    }
}