tawasuyu

tawasuyu/taffy

A high performance rust-powered UI layout library

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⎇ morphorm tests/generated/grid/grid_min_content_flex_row.rs Rust · 82 lines · 4.3 KB History Who touched what raw

Replace per-node measure functions with a single measure function + per-node context (#490) be627e7fa · Nico Burns ·

1#[test]
2fn grid_min_content_flex_row() {
3    #[allow(unused_imports)]
4    use taffy::{prelude::*, tree::Layout, Taffy};
5    let mut taffy: Taffy<crate::TextMeasure> = Taffy::new();
6    let node00 = taffy
7        .new_leaf_with_context(
8            taffy::style::Style { ..Default::default() },
9            crate::TextMeasure {
10                text_content: "HH\u{200b}HH",
11                writing_mode: crate::WritingMode::Horizontal,
12                _aspect_ratio: None,
13            },
14        )
15        .unwrap();
16    let node01 = taffy
17        .new_leaf_with_context(
18            taffy::style::Style { ..Default::default() },
19            crate::TextMeasure {
20                text_content: "HH\u{200b}HH",
21                writing_mode: crate::WritingMode::Horizontal,
22                _aspect_ratio: None,
23            },
24        )
25        .unwrap();
26    let node02 = taffy
27        .new_leaf_with_context(
28            taffy::style::Style { ..Default::default() },
29            crate::TextMeasure {
30                text_content: "HH\u{200b}HH",
31                writing_mode: crate::WritingMode::Horizontal,
32                _aspect_ratio: None,
33            },
34        )
35        .unwrap();
36    let node0 = taffy
37        .new_with_children(
38            taffy::style::Style { display: taffy::style::Display::Flex, ..Default::default() },
39            &[node00, node01, node02],
40        )
41        .unwrap();
42    let node = taffy
43        .new_with_children(
44            taffy::style::Style {
45                display: taffy::style::Display::Grid,
46                grid_template_rows: vec![length(40f32)],
47                grid_template_columns: vec![min_content()],
48                ..Default::default()
49            },
50            &[node0],
51        )
52        .unwrap();
53    taffy.compute_layout_with_measure(node, taffy::geometry::Size::MAX_CONTENT, crate::test_measure_function).unwrap();
54    println!("\nComputed tree:");
55    taffy.print_tree(node);
56    println!();
57    let Layout { size, location, .. } = taffy.layout(node).unwrap();
58    assert_eq!(size.width, 60f32, "width of node {:?}. Expected {}. Actual {}", node, 60f32, size.width);
59    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node, 40f32, size.height);
60    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node, 0f32, location.x);
61    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node, 0f32, location.y);
62    let Layout { size, location, .. } = taffy.layout(node0).unwrap();
63    assert_eq!(size.width, 60f32, "width of node {:?}. Expected {}. Actual {}", node0, 60f32, size.width);
64    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node0, 40f32, size.height);
65    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node0, 0f32, location.x);
66    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node0, 0f32, location.y);
67    let Layout { size, location, .. } = taffy.layout(node00).unwrap();
68    assert_eq!(size.width, 20f32, "width of node {:?}. Expected {}. Actual {}", node00, 20f32, size.width);
69    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node00, 40f32, size.height);
70    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node00, 0f32, location.x);
71    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node00, 0f32, location.y);
72    let Layout { size, location, .. } = taffy.layout(node01).unwrap();
73    assert_eq!(size.width, 20f32, "width of node {:?}. Expected {}. Actual {}", node01, 20f32, size.width);
74    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node01, 40f32, size.height);
75    assert_eq!(location.x, 20f32, "x of node {:?}. Expected {}. Actual {}", node01, 20f32, location.x);
76    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node01, 0f32, location.y);
77    let Layout { size, location, .. } = taffy.layout(node02).unwrap();
78    assert_eq!(size.width, 20f32, "width of node {:?}. Expected {}. Actual {}", node02, 20f32, size.width);
79    assert_eq!(size.height, 40f32, "height of node {:?}. Expected {}. Actual {}", node02, 40f32, size.height);
80    assert_eq!(location.x, 40f32, "x of node {:?}. Expected {}. Actual {}", node02, 40f32, location.x);
81    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node02, 0f32, location.y);
82}