tawasuyu/taffy

1#[test]
2fn grid_margins_fixed_center() {
3    #[allow(unused_imports)]
4    use taffy::{prelude::*, tree::Layout};
5    let mut taffy = taffy::Taffy::new();
6    let node0 = taffy
7        .new_leaf(taffy::style::Style {
8            align_self: Some(taffy::style::AlignSelf::Center),
9            justify_self: Some(taffy::style::JustifySelf::Center),
10            size: taffy::geometry::Size {
11                width: taffy::style::Dimension::Length(20f32),
12                height: taffy::style::Dimension::Length(20f32),
13            },
14            margin: taffy::geometry::Rect {
15                left: taffy::style::LengthPercentageAuto::Length(8f32),
16                right: taffy::style::LengthPercentageAuto::Length(4f32),
17                top: taffy::style::LengthPercentageAuto::Length(2f32),
18                bottom: taffy::style::LengthPercentageAuto::Length(6f32),
19            },
20            ..Default::default()
21        })
22        .unwrap();
23    let node1 = taffy.new_leaf(taffy::style::Style { ..Default::default() }).unwrap();
24    let node2 = taffy.new_leaf(taffy::style::Style { ..Default::default() }).unwrap();
25    let node3 = taffy.new_leaf(taffy::style::Style { ..Default::default() }).unwrap();
26    let node4 = taffy.new_leaf(taffy::style::Style { ..Default::default() }).unwrap();
27    let node5 = taffy.new_leaf(taffy::style::Style { ..Default::default() }).unwrap();
28    let node = taffy
29        .new_with_children(
30            taffy::style::Style {
31                display: taffy::style::Display::Grid,
32                grid_template_rows: vec![length(40f32), length(40f32), length(40f32)],
33                grid_template_columns: vec![length(40f32), length(40f32), length(40f32)],
34                padding: taffy::geometry::Rect {
35                    left: taffy::style::LengthPercentage::Length(40f32),
36                    right: taffy::style::LengthPercentage::Length(20f32),
37                    top: taffy::style::LengthPercentage::Length(10f32),
38                    bottom: taffy::style::LengthPercentage::Length(30f32),
39                },
40                ..Default::default()
41            },
42            &[node0, node1, node2, node3, node4, node5],
43        )
44        .unwrap();
45    taffy.compute_layout(node, taffy::geometry::Size::MAX_CONTENT).unwrap();
46    println!("\nComputed tree:");
47    taffy::util::print_tree(&taffy, node);
48    println!();
49    let Layout { size, location, .. } = taffy.layout(node).unwrap();
50    assert_eq!(size.width, 180f32, "width of node {:?}. Expected {}. Actual {}", node, 180f32, size.width);
51    assert_eq!(size.height, 160f32, "height of node {:?}. Expected {}. Actual {}", node, 160f32, size.height);
52    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node, 0f32, location.x);
53    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node, 0f32, location.y);
54    let Layout { size, location, .. } = taffy.layout(node0).unwrap();
55    assert_eq!(size.width, 20f32, "width of node {:?}. Expected {}. Actual {}", node0, 20f32, size.width);
56    assert_eq!(size.height, 20f32, "height of node {:?}. Expected {}. Actual {}", node0, 20f32, size.height);
57    assert_eq!(location.x, 52f32, "x of node {:?}. Expected {}. Actual {}", node0, 52f32, location.x);
58    assert_eq!(location.y, 18f32, "y of node {:?}. Expected {}. Actual {}", node0, 18f32, location.y);
59    let Layout { size, location, .. } = taffy.layout(node1).unwrap();
60    assert_eq!(size.width, 40f32, "width of node {:?}. Expected {}. Actual {}", node1, 40f32, size.width);
61    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node1, 40f32, size.height);
62    assert_eq!(location.x, 80f32, "x of node {:?}. Expected {}. Actual {}", node1, 80f32, location.x);
63    assert_eq!(location.y, 10f32, "y of node {:?}. Expected {}. Actual {}", node1, 10f32, location.y);
64    let Layout { size, location, .. } = taffy.layout(node2).unwrap();
65    assert_eq!(size.width, 40f32, "width of node {:?}. Expected {}. Actual {}", node2, 40f32, size.width);
66    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node2, 40f32, size.height);
67    assert_eq!(location.x, 120f32, "x of node {:?}. Expected {}. Actual {}", node2, 120f32, location.x);
68    assert_eq!(location.y, 10f32, "y of node {:?}. Expected {}. Actual {}", node2, 10f32, location.y);
69    let Layout { size, location, .. } = taffy.layout(node3).unwrap();
70    assert_eq!(size.width, 40f32, "width of node {:?}. Expected {}. Actual {}", node3, 40f32, size.width);
71    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node3, 40f32, size.height);
72    assert_eq!(location.x, 40f32, "x of node {:?}. Expected {}. Actual {}", node3, 40f32, location.x);
73    assert_eq!(location.y, 50f32, "y of node {:?}. Expected {}. Actual {}", node3, 50f32, location.y);
74    let Layout { size, location, .. } = taffy.layout(node4).unwrap();
75    assert_eq!(size.width, 40f32, "width of node {:?}. Expected {}. Actual {}", node4, 40f32, size.width);
76    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node4, 40f32, size.height);
77    assert_eq!(location.x, 80f32, "x of node {:?}. Expected {}. Actual {}", node4, 80f32, location.x);
78    assert_eq!(location.y, 50f32, "y of node {:?}. Expected {}. Actual {}", node4, 50f32, location.y);
79    let Layout { size, location, .. } = taffy.layout(node5).unwrap();
80    assert_eq!(size.width, 40f32, "width of node {:?}. Expected {}. Actual {}", node5, 40f32, size.width);
81    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node5, 40f32, size.height);
82    assert_eq!(location.x, 120f32, "x of node {:?}. Expected {}. Actual {}", node5, 120f32, location.x);
83    assert_eq!(location.y, 50f32, "y of node {:?}. Expected {}. Actual {}", node5, 50f32, location.y);
84}