kobalt_core/
layout.rs

1//! Layout primitives and alignment enums
2
3/// Main axis alignment (vertical for Column, horizontal for Row)
4#[derive(Debug, Clone, Copy, PartialEq)]
5pub enum MainAxisAlignment {
6    /// Place children at the start of the axis
7    Start,
8    /// Place children at the end of the axis
9    End,
10    /// Place children at the center of the axis
11    Center,
12    /// Place children with equal spacing between them
13    SpaceBetween,
14    /// Place children with equal spacing around them
15    SpaceAround,
16    /// Place children with equal spacing evenly distributed
17    SpaceEvenly,
18}
19
20impl Default for MainAxisAlignment {
21    fn default() -> Self {
22        Self::Start
23    }
24}
25
26/// Cross axis alignment (horizontal for Column, vertical for Row)
27#[derive(Debug, Clone, Copy, PartialEq)]
28pub enum CrossAxisAlignment {
29    /// Align children to the start of the cross axis
30    Start,
31    /// Align children to the end of the cross axis
32    End,
33    /// Align children to the center of the cross axis
34    Center,
35    /// Stretch children to fill the cross axis
36    Stretch,
37}
38
39impl Default for CrossAxisAlignment {
40    fn default() -> Self {
41        Self::Start
42    }
43}
44
45/// Edge insets for padding/margin
46#[derive(Debug, Clone, Copy, PartialEq)]
47pub struct EdgeInsets {
48    pub top: f32,
49    pub right: f32,
50    pub bottom: f32,
51    pub left: f32,
52}
53
54impl EdgeInsets {
55    /// Creates edge insets with all sides equal
56    pub fn all(value: f32) -> Self {
57        Self {
58            top: value,
59            right: value,
60            bottom: value,
61            left: value,
62        }
63    }
64
65    /// Creates edge insets with symmetric values
66    pub fn symmetric(vertical: f32, horizontal: f32) -> Self {
67        Self {
68            top: vertical,
69            right: horizontal,
70            bottom: vertical,
71            left: horizontal,
72        }
73    }
74
75    /// Creates edge insets with individual values
76    pub fn only(top: f32, right: f32, bottom: f32, left: f32) -> Self {
77        Self {
78            top,
79            right,
80            bottom,
81            left,
82        }
83    }
84
85    /// Creates zero edge insets
86    pub fn zero() -> Self {
87        Self {
88            top: 0.0,
89            right: 0.0,
90            bottom: 0.0,
91            left: 0.0,
92        }
93    }
94
95    /// Returns the total horizontal insets
96    pub fn horizontal(&self) -> f32 {
97        self.left + self.right
98    }
99
100    /// Returns the total vertical insets
101    pub fn vertical(&self) -> f32 {
102        self.top + self.bottom
103    }
104}
105
106impl Default for EdgeInsets {
107    fn default() -> Self {
108        Self::zero()
109    }
110}
kobalt_core/layout.rs

kobalt_core/
layout.rs
