twill 0.2.0

Idiomatic Rust styling library inspired by Tailwind CSS for GUI
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

//! Shadow design tokens following Tailwind CSS shadow scale.

use crate::traits::ToCss;

/// Box shadow tokens.
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, Default)]
pub enum Shadow {
    /// 0 1px rgb(0 0 0 / 0.05)
    Xs2,
    /// 0 1px 2px 0 rgb(0 0 0 / 0.05)
    Xs,
    /// 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1)
    Sm,
    /// 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1)
    Md,
    /// 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1)
    Lg,
    /// 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1)
    Xl,
    /// 0 25px 50px -12px rgb(0 0 0 / 0.25)
    S2xl,
    /// No shadow
    #[default]
    None,
}

impl ToCss for Shadow {
    fn to_css(&self) -> String {
        match self {
            Shadow::Xs2 => "0 1px rgb(0 0 0 / 0.05)".to_string(),
            Shadow::Xs => "0 1px 2px 0 rgb(0 0 0 / 0.05)".to_string(),
            Shadow::Sm => {
                "0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1)".to_string()
            }
            Shadow::Md => {
                "0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1)".to_string()
            }
            Shadow::Lg => {
                "0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1)".to_string()
            }
            Shadow::Xl => {
                "0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1)".to_string()
            }
            Shadow::S2xl => "0 25px 50px -12px rgb(0 0 0 / 0.25)".to_string(),
            Shadow::None => "none".to_string(),
        }
    }
}

/// Inset box shadow tokens.
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
pub enum InsetShadow {
    /// inset 0 1px rgb(0 0 0 / 0.05)
    Xs2,
    /// inset 0 1px 1px rgb(0 0 0 / 0.05)
    Xs,
    /// inset 0 2px 4px rgb(0 0 0 / 0.05)
    Sm,
    /// No shadow
    None,
}

impl ToCss for InsetShadow {
    fn to_css(&self) -> String {
        match self {
            InsetShadow::Xs2 => "inset 0 1px rgb(0 0 0 / 0.05)".to_string(),
            InsetShadow::Xs => "inset 0 1px 1px rgb(0 0 0 / 0.05)".to_string(),
            InsetShadow::Sm => "inset 0 2px 4px rgb(0 0 0 / 0.05)".to_string(),
            InsetShadow::None => "none".to_string(),
        }
    }
}

/// Drop shadow tokens (for filters).
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
pub enum DropShadow {
    /// 0 1px 1px rgb(0 0 0 / 0.05)
    Xs,
    /// 0 1px 2px rgb(0 0 0 / 0.15)
    Sm,
    /// 0 3px 3px rgb(0 0 0 / 0.12)
    Md,
    /// 0 4px 4px rgb(0 0 0 / 0.15)
    Lg,
    /// 0 9px 7px rgb(0 0 0 / 0.1)
    Xl,
    /// 0 25px 25px rgb(0 0 0 / 0.15)
    S2xl,
    /// No shadow
    None,
}

impl ToCss for DropShadow {
    fn to_css(&self) -> String {
        match self {
            DropShadow::Xs => "drop-shadow(0 1px 1px rgb(0 0 0 / 0.05))".to_string(),
            DropShadow::Sm => "drop-shadow(0 1px 2px rgb(0 0 0 / 0.15))".to_string(),
            DropShadow::Md => "drop-shadow(0 3px 3px rgb(0 0 0 / 0.12))".to_string(),
            DropShadow::Lg => "drop-shadow(0 4px 4px rgb(0 0 0 / 0.15))".to_string(),
            DropShadow::Xl => "drop-shadow(0 9px 7px rgb(0 0 0 / 0.1))".to_string(),
            DropShadow::S2xl => "drop-shadow(0 25px 25px rgb(0 0 0 / 0.15))".to_string(),
            DropShadow::None => "none".to_string(),
        }
    }
}

/// Text shadow tokens.
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
pub enum TextShadow {
    /// 0px 1px 0px rgb(0 0 0 / 0.15)
    Xs2,
    /// 0px 1px 1px rgb(0 0 0 / 0.2)
    Xs,
    /// Multiple layers
    Sm,
    /// Multiple layers
    Md,
    /// Multiple layers
    Lg,
    /// No shadow
    None,
}

impl ToCss for TextShadow {
    fn to_css(&self) -> String {
        match self {
            TextShadow::Xs2 => "0px 1px 0px rgb(0 0 0 / 0.15)".to_string(),
            TextShadow::Xs => "0px 1px 1px rgb(0 0 0 / 0.2)".to_string(),
            TextShadow::Sm => "0px 1px 0px rgb(0 0 0 / 0.075), 0px 1px 1px rgb(0 0 0 / 0.075), 0px 2px 2px rgb(0 0 0 / 0.075)".to_string(),
            TextShadow::Md => "0px 1px 1px rgb(0 0 0 / 0.1), 0px 1px 2px rgb(0 0 0 / 0.1), 0px 2px 4px rgb(0 0 0 / 0.1)".to_string(),
            TextShadow::Lg => "0px 1px 2px rgb(0 0 0 / 0.1), 0px 3px 2px rgb(0 0 0 / 0.1), 0px 4px 8px rgb(0 0 0 / 0.1)".to_string(),
            TextShadow::None => "none".to_string(),
        }
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test_shadow_css() {
        assert!(Shadow::Sm.to_css().contains("0 1px 3px"));
        assert_eq!(Shadow::None.to_css(), "none");
    }
}