tawasuyu/taffy

1#[test]
2fn grid_max_content_single_item() {
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.new_leaf(taffy::style::Style { ..Default::default() }).unwrap();
8    let node1 = taffy
9        .new_leaf_with_measure(
10            taffy::style::Style { ..Default::default() },
11            taffy::node::MeasureFunc::Raw(|known_dimensions, available_space| {
12                const TEXT: &str = "HH\u{200b}HH";
13                super::measure_standard_text(
14                    known_dimensions,
15                    available_space,
16                    TEXT,
17                    super::WritingMode::Horizontal,
18                    None,
19                )
20            }),
21        )
22        .unwrap();
23    let node2 = taffy.new_leaf(taffy::style::Style { ..Default::default() }).unwrap();
24    let node3 = taffy.new_leaf(taffy::style::Style { ..Default::default() }).unwrap();
25    let node4 = taffy.new_leaf(taffy::style::Style { ..Default::default() }).unwrap();
26    let node5 = taffy.new_leaf(taffy::style::Style { ..Default::default() }).unwrap();
27    let node6 = taffy.new_leaf(taffy::style::Style { ..Default::default() }).unwrap();
28    let node7 = taffy.new_leaf(taffy::style::Style { ..Default::default() }).unwrap();
29    let node8 = taffy.new_leaf(taffy::style::Style { ..Default::default() }).unwrap();
30    let node = taffy
31        .new_with_children(
32            taffy::style::Style {
33                display: taffy::style::Display::Grid,
34                grid_template_rows: vec![points(40f32), points(40f32), points(40f32)],
35                grid_template_columns: vec![points(40f32), max_content(), points(40f32)],
36                ..Default::default()
37            },
38            &[node0, node1, node2, node3, node4, node5, node6, node7, node8],
39        )
40        .unwrap();
41    taffy.compute_layout(node, taffy::geometry::Size::MAX_CONTENT).unwrap();
42    println!("\nComputed tree:");
43    taffy::debug::print_tree(&taffy, node);
44    println!();
45    let Layout { size, location, .. } = taffy.layout(node).unwrap();
46    assert_eq!(size.width, 120f32, "width of node {:?}. Expected {}. Actual {}", node.data(), 120f32, size.width);
47    assert_eq!(size.height, 120f32, "height of node {:?}. Expected {}. Actual {}", node.data(), 120f32, size.height);
48    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node.data(), 0f32, location.x);
49    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node.data(), 0f32, location.y);
50    let Layout { size, location, .. } = taffy.layout(node0).unwrap();
51    assert_eq!(size.width, 40f32, "width of node {:?}. Expected {}. Actual {}", node0.data(), 40f32, size.width);
52    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node0.data(), 40f32, size.height);
53    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node0.data(), 0f32, location.x);
54    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node0.data(), 0f32, location.y);
55    let Layout { size, location, .. } = taffy.layout(node1).unwrap();
56    assert_eq!(size.width, 40f32, "width of node {:?}. Expected {}. Actual {}", node1.data(), 40f32, size.width);
57    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node1.data(), 40f32, size.height);
58    assert_eq!(location.x, 40f32, "x of node {:?}. Expected {}. Actual {}", node1.data(), 40f32, location.x);
59    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node1.data(), 0f32, location.y);
60    let Layout { size, location, .. } = taffy.layout(node2).unwrap();
61    assert_eq!(size.width, 40f32, "width of node {:?}. Expected {}. Actual {}", node2.data(), 40f32, size.width);
62    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node2.data(), 40f32, size.height);
63    assert_eq!(location.x, 80f32, "x of node {:?}. Expected {}. Actual {}", node2.data(), 80f32, location.x);
64    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node2.data(), 0f32, location.y);
65    let Layout { size, location, .. } = taffy.layout(node3).unwrap();
66    assert_eq!(size.width, 40f32, "width of node {:?}. Expected {}. Actual {}", node3.data(), 40f32, size.width);
67    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node3.data(), 40f32, size.height);
68    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node3.data(), 0f32, location.x);
69    assert_eq!(location.y, 40f32, "y of node {:?}. Expected {}. Actual {}", node3.data(), 40f32, location.y);
70    let Layout { size, location, .. } = taffy.layout(node4).unwrap();
71    assert_eq!(size.width, 40f32, "width of node {:?}. Expected {}. Actual {}", node4.data(), 40f32, size.width);
72    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node4.data(), 40f32, size.height);
73    assert_eq!(location.x, 40f32, "x of node {:?}. Expected {}. Actual {}", node4.data(), 40f32, location.x);
74    assert_eq!(location.y, 40f32, "y of node {:?}. Expected {}. Actual {}", node4.data(), 40f32, location.y);
75    let Layout { size, location, .. } = taffy.layout(node5).unwrap();
76    assert_eq!(size.width, 40f32, "width of node {:?}. Expected {}. Actual {}", node5.data(), 40f32, size.width);
77    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node5.data(), 40f32, size.height);
78    assert_eq!(location.x, 80f32, "x of node {:?}. Expected {}. Actual {}", node5.data(), 80f32, location.x);
79    assert_eq!(location.y, 40f32, "y of node {:?}. Expected {}. Actual {}", node5.data(), 40f32, location.y);
80    let Layout { size, location, .. } = taffy.layout(node6).unwrap();
81    assert_eq!(size.width, 40f32, "width of node {:?}. Expected {}. Actual {}", node6.data(), 40f32, size.width);
82    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node6.data(), 40f32, size.height);
83    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node6.data(), 0f32, location.x);
84    assert_eq!(location.y, 80f32, "y of node {:?}. Expected {}. Actual {}", node6.data(), 80f32, location.y);
85    let Layout { size, location, .. } = taffy.layout(node7).unwrap();
86    assert_eq!(size.width, 40f32, "width of node {:?}. Expected {}. Actual {}", node7.data(), 40f32, size.width);
87    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node7.data(), 40f32, size.height);
88    assert_eq!(location.x, 40f32, "x of node {:?}. Expected {}. Actual {}", node7.data(), 40f32, location.x);
89    assert_eq!(location.y, 80f32, "y of node {:?}. Expected {}. Actual {}", node7.data(), 80f32, location.y);
90    let Layout { size, location, .. } = taffy.layout(node8).unwrap();
91    assert_eq!(size.width, 40f32, "width of node {:?}. Expected {}. Actual {}", node8.data(), 40f32, size.width);
92    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node8.data(), 40f32, size.height);
93    assert_eq!(location.x, 80f32, "x of node {:?}. Expected {}. Actual {}", node8.data(), 80f32, location.x);
94    assert_eq!(location.y, 80f32, "y of node {:?}. Expected {}. Actual {}", node8.data(), 80f32, location.y);
95}