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
|
use crate::{Length, Size};
#[derive(Debug, Clone, Copy)]
pub struct Limits {
min: Size,
max: Size,
fill: Size,
}
impl Limits {
pub const NONE: Limits = Limits {
min: Size::ZERO,
max: Size::INFINITY,
fill: Size::INFINITY,
};
pub fn new(min: Size, max: Size) -> Limits {
Limits {
min,
max,
fill: Size::INFINITY,
}
}
pub fn width(mut self, width: Length) -> Limits {
match width {
Length::Shrink => {
self.fill.width = self.min.width;
}
Length::Fill => {
self.fill.width = self.fill.width.min(self.max.width);
}
Length::Units(units) => {
let new_width =
(units as f32).min(self.max.width).max(self.min.width);
self.min.width = new_width;
self.max.width = new_width;
self.fill.width = new_width;
}
}
self
}
pub fn height(mut self, height: Length) -> Limits {
match height {
Length::Shrink => {
self.fill.height = self.min.height;
}
Length::Fill => {
self.fill.height = self.fill.height.min(self.max.height);
}
Length::Units(units) => {
let new_height =
(units as f32).min(self.max.height).max(self.min.height);
self.min.height = new_height;
self.max.height = new_height;
self.fill.height = new_height;
}
}
self
}
pub fn min_width(mut self, min_width: u32) -> Limits {
self.min.width =
self.min.width.max(min_width as f32).min(self.max.width);
self
}
pub fn max_width(mut self, max_width: u32) -> Limits {
self.max.width =
self.max.width.min(max_width as f32).max(self.min.width);
self
}
pub fn max_height(mut self, max_height: u32) -> Limits {
self.max.height =
self.max.height.min(max_height as f32).max(self.min.height);
self
}
pub fn resolve(&self, intrinsic_size: Size) -> Size {
Size::new(
intrinsic_size
.width
.min(self.max.width)
.max(self.fill.width),
intrinsic_size
.height
.min(self.max.height)
.max(self.fill.height),
)
}
pub fn min(&self) -> Size {
self.min
}
pub fn max(&self) -> Size {
self.max
}
pub fn pad(&self, padding: f32) -> Limits {
self.shrink(Size::new(padding * 2.0, padding * 2.0))
}
pub fn shrink(&self, size: Size) -> Limits {
let min = Size::new(
(self.min().width - size.width).max(0.0),
(self.min().height - size.height).max(0.0),
);
let max = Size::new(
(self.max().width - size.width).max(0.0),
(self.max().height - size.height).max(0.0),
);
let fill = Size::new(
(self.fill.width - size.width).max(0.0),
(self.fill.height - size.height).max(0.0),
);
Limits { min, max, fill }
}
}
|
