tawasuyu/taffy

1#[test]
2fn wrap_column() {
3    use slotmap::Key;
4    #[allow(unused_imports)]
5    use taffy::{layout::Layout, prelude::*};
6    let mut taffy = taffy::Taffy::new();
7    let node0 = taffy
8        .new_leaf(taffy::style::Style {
9            size: taffy::geometry::Size {
10                width: taffy::style::Dimension::Points(30f32),
11                height: taffy::style::Dimension::Points(31f32),
12            },
13            ..Default::default()
14        })
15        .unwrap();
16    let node1 = taffy
17        .new_leaf(taffy::style::Style {
18            size: taffy::geometry::Size {
19                width: taffy::style::Dimension::Points(30f32),
20                height: taffy::style::Dimension::Points(32f32),
21            },
22            ..Default::default()
23        })
24        .unwrap();
25    let node2 = taffy
26        .new_leaf(taffy::style::Style {
27            size: taffy::geometry::Size {
28                width: taffy::style::Dimension::Points(30f32),
29                height: taffy::style::Dimension::Points(33f32),
30            },
31            ..Default::default()
32        })
33        .unwrap();
34    let node3 = taffy
35        .new_leaf(taffy::style::Style {
36            size: taffy::geometry::Size {
37                width: taffy::style::Dimension::Points(30f32),
38                height: taffy::style::Dimension::Points(34f32),
39            },
40            ..Default::default()
41        })
42        .unwrap();
43    let node = taffy
44        .new_with_children(
45            taffy::style::Style {
46                flex_direction: taffy::style::FlexDirection::Column,
47                flex_wrap: taffy::style::FlexWrap::Wrap,
48                size: taffy::geometry::Size {
49                    width: taffy::style::Dimension::Points(100f32),
50                    height: taffy::style::Dimension::Points(100f32),
51                },
52                ..Default::default()
53            },
54            &[node0, node1, node2, node3],
55        )
56        .unwrap();
57    taffy.compute_layout(node, taffy::geometry::Size::MAX_CONTENT).unwrap();
58    println!("\nComputed tree:");
59    taffy::debug::print_tree(&taffy, node);
60    println!();
61    let Layout { size, location, .. } = taffy.layout(node).unwrap();
62    assert_eq!(size.width, 100f32, "width of node {:?}. Expected {}. Actual {}", node.data(), 100f32, size.width);
63    assert_eq!(size.height, 100f32, "height of node {:?}. Expected {}. Actual {}", node.data(), 100f32, size.height);
64    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node.data(), 0f32, location.x);
65    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node.data(), 0f32, location.y);
66    let Layout { size, location, .. } = taffy.layout(node0).unwrap();
67    assert_eq!(size.width, 30f32, "width of node {:?}. Expected {}. Actual {}", node0.data(), 30f32, size.width);
68    assert_eq!(size.height, 31f32, "height of node {:?}. Expected {}. Actual {}", node0.data(), 31f32, size.height);
69    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node0.data(), 0f32, location.x);
70    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node0.data(), 0f32, location.y);
71    let Layout { size, location, .. } = taffy.layout(node1).unwrap();
72    assert_eq!(size.width, 30f32, "width of node {:?}. Expected {}. Actual {}", node1.data(), 30f32, size.width);
73    assert_eq!(size.height, 32f32, "height of node {:?}. Expected {}. Actual {}", node1.data(), 32f32, size.height);
74    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node1.data(), 0f32, location.x);
75    assert_eq!(location.y, 31f32, "y of node {:?}. Expected {}. Actual {}", node1.data(), 31f32, location.y);
76    let Layout { size, location, .. } = taffy.layout(node2).unwrap();
77    assert_eq!(size.width, 30f32, "width of node {:?}. Expected {}. Actual {}", node2.data(), 30f32, size.width);
78    assert_eq!(size.height, 33f32, "height of node {:?}. Expected {}. Actual {}", node2.data(), 33f32, size.height);
79    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node2.data(), 0f32, location.x);
80    assert_eq!(location.y, 63f32, "y of node {:?}. Expected {}. Actual {}", node2.data(), 63f32, location.y);
81    let Layout { size, location, .. } = taffy.layout(node3).unwrap();
82    assert_eq!(size.width, 30f32, "width of node {:?}. Expected {}. Actual {}", node3.data(), 30f32, size.width);
83    assert_eq!(size.height, 34f32, "height of node {:?}. Expected {}. Actual {}", node3.data(), 34f32, size.height);
84    assert_eq!(location.x, 50f32, "x of node {:?}. Expected {}. Actual {}", node3.data(), 50f32, location.x);
85    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node3.data(), 0f32, location.y);
86}