tawasuyu/taffy

1#[test]
2fn grid_min_content_flex_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(taffy::style::Style {
10            min_size: taffy::geometry::Size { width: taffy::style::Dimension::Points(10f32), height: auto() },
11            ..Default::default()
12        })
13        .unwrap();
14    let node2 = taffy.new_leaf(taffy::style::Style { ..Default::default() }).unwrap();
15    let node3 = taffy.new_leaf(taffy::style::Style { ..Default::default() }).unwrap();
16    let node4 = taffy
17        .new_leaf_with_measure(
18            taffy::style::Style {
19                grid_column: taffy::geometry::Line {
20                    start: taffy::style::GridPlacement::Span(2u16),
21                    end: taffy::style::GridPlacement::Auto,
22                },
23                ..Default::default()
24            },
25            taffy::node::MeasureFunc::Raw(|known_dimensions, available_space| {
26                const TEXT: &str = "HH\u{200b}HH";
27                super::measure_standard_text(
28                    known_dimensions,
29                    available_space,
30                    TEXT,
31                    super::WritingMode::Horizontal,
32                    None,
33                )
34            }),
35        )
36        .unwrap();
37    let node5 = taffy.new_leaf(taffy::style::Style { ..Default::default() }).unwrap();
38    let node6 = taffy.new_leaf(taffy::style::Style { ..Default::default() }).unwrap();
39    let node7 = taffy.new_leaf(taffy::style::Style { ..Default::default() }).unwrap();
40    let node = taffy
41        .new_with_children(
42            taffy::style::Style {
43                display: taffy::style::Display::Grid,
44                grid_template_rows: vec![points(40f32), points(40f32), points(40f32)],
45                grid_template_columns: vec![points(40f32), min_content(), fr(1f32)],
46                ..Default::default()
47            },
48            &[node0, node1, node2, node3, node4, node5, node6, node7],
49        )
50        .unwrap();
51    taffy.compute_layout(node, taffy::geometry::Size::MAX_CONTENT).unwrap();
52    println!("\nComputed tree:");
53    taffy::debug::print_tree(&taffy, node);
54    println!();
55    let Layout { size, location, .. } = taffy.layout(node).unwrap();
56    assert_eq!(size.width, 80f32, "width of node {:?}. Expected {}. Actual {}", node.data(), 80f32, size.width);
57    assert_eq!(size.height, 120f32, "height of node {:?}. Expected {}. Actual {}", node.data(), 120f32, size.height);
58    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node.data(), 0f32, location.x);
59    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node.data(), 0f32, location.y);
60    let Layout { size, location, .. } = taffy.layout(node0).unwrap();
61    assert_eq!(size.width, 40f32, "width of node {:?}. Expected {}. Actual {}", node0.data(), 40f32, size.width);
62    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node0.data(), 40f32, size.height);
63    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node0.data(), 0f32, location.x);
64    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node0.data(), 0f32, location.y);
65    let Layout { size, location, .. } = taffy.layout(node1).unwrap();
66    assert_eq!(size.width, 10f32, "width of node {:?}. Expected {}. Actual {}", node1.data(), 10f32, size.width);
67    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node1.data(), 40f32, size.height);
68    assert_eq!(location.x, 40f32, "x of node {:?}. Expected {}. Actual {}", node1.data(), 40f32, location.x);
69    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node1.data(), 0f32, location.y);
70    let Layout { size, location, .. } = taffy.layout(node2).unwrap();
71    assert_eq!(size.width, 30f32, "width of node {:?}. Expected {}. Actual {}", node2.data(), 30f32, size.width);
72    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node2.data(), 40f32, size.height);
73    assert_eq!(location.x, 50f32, "x of node {:?}. Expected {}. Actual {}", node2.data(), 50f32, location.x);
74    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node2.data(), 0f32, location.y);
75    let Layout { size, location, .. } = taffy.layout(node3).unwrap();
76    assert_eq!(size.width, 40f32, "width of node {:?}. Expected {}. Actual {}", node3.data(), 40f32, size.width);
77    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node3.data(), 40f32, size.height);
78    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node3.data(), 0f32, location.x);
79    assert_eq!(location.y, 40f32, "y of node {:?}. Expected {}. Actual {}", node3.data(), 40f32, location.y);
80    let Layout { size, location, .. } = taffy.layout(node4).unwrap();
81    assert_eq!(size.width, 40f32, "width of node {:?}. Expected {}. Actual {}", node4.data(), 40f32, size.width);
82    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node4.data(), 40f32, size.height);
83    assert_eq!(location.x, 40f32, "x of node {:?}. Expected {}. Actual {}", node4.data(), 40f32, location.x);
84    assert_eq!(location.y, 40f32, "y of node {:?}. Expected {}. Actual {}", node4.data(), 40f32, location.y);
85    let Layout { size, location, .. } = taffy.layout(node5).unwrap();
86    assert_eq!(size.width, 40f32, "width of node {:?}. Expected {}. Actual {}", node5.data(), 40f32, size.width);
87    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node5.data(), 40f32, size.height);
88    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node5.data(), 0f32, location.x);
89    assert_eq!(location.y, 80f32, "y of node {:?}. Expected {}. Actual {}", node5.data(), 80f32, location.y);
90    let Layout { size, location, .. } = taffy.layout(node6).unwrap();
91    assert_eq!(size.width, 10f32, "width of node {:?}. Expected {}. Actual {}", node6.data(), 10f32, size.width);
92    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node6.data(), 40f32, size.height);
93    assert_eq!(location.x, 40f32, "x of node {:?}. Expected {}. Actual {}", node6.data(), 40f32, location.x);
94    assert_eq!(location.y, 80f32, "y of node {:?}. Expected {}. Actual {}", node6.data(), 80f32, location.y);
95    let Layout { size, location, .. } = taffy.layout(node7).unwrap();
96    assert_eq!(size.width, 30f32, "width of node {:?}. Expected {}. Actual {}", node7.data(), 30f32, size.width);
97    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node7.data(), 40f32, size.height);
98    assert_eq!(location.x, 50f32, "x of node {:?}. Expected {}. Actual {}", node7.data(), 50f32, location.x);
99    assert_eq!(location.y, 80f32, "y of node {:?}. Expected {}. Actual {}", node7.data(), 80f32, location.y);
100}