tawasuyu/taffy

1#[test]
2fn wrapped_column_max_height_flex() {
3    #[allow(unused_imports)]
4    use taffy::{prelude::*, tree::Layout, TaffyTree};
5    let mut taffy: TaffyTree<crate::TextMeasure> = TaffyTree::new();
6    let node0 = taffy
7        .new_leaf(taffy::style::Style {
8            flex_grow: 1f32,
9            flex_shrink: 1f32,
10            flex_basis: taffy::style::Dimension::Percent(0f32),
11            size: taffy::geometry::Size {
12                width: taffy::style::Dimension::Length(100f32),
13                height: taffy::style::Dimension::Length(500f32),
14            },
15            max_size: taffy::geometry::Size { width: auto(), height: taffy::style::Dimension::Length(200f32) },
16            ..Default::default()
17        })
18        .unwrap();
19    let node1 = taffy
20        .new_leaf(taffy::style::Style {
21            flex_grow: 1f32,
22            flex_shrink: 1f32,
23            flex_basis: taffy::style::Dimension::Percent(0f32),
24            size: taffy::geometry::Size {
25                width: taffy::style::Dimension::Length(200f32),
26                height: taffy::style::Dimension::Length(200f32),
27            },
28            margin: taffy::geometry::Rect {
29                left: taffy::style::LengthPercentageAuto::Length(20f32),
30                right: taffy::style::LengthPercentageAuto::Length(20f32),
31                top: taffy::style::LengthPercentageAuto::Length(20f32),
32                bottom: taffy::style::LengthPercentageAuto::Length(20f32),
33            },
34            ..Default::default()
35        })
36        .unwrap();
37    let node2 = taffy
38        .new_leaf(taffy::style::Style {
39            size: taffy::geometry::Size {
40                width: taffy::style::Dimension::Length(100f32),
41                height: taffy::style::Dimension::Length(100f32),
42            },
43            ..Default::default()
44        })
45        .unwrap();
46    let node = taffy
47        .new_with_children(
48            taffy::style::Style {
49                flex_direction: taffy::style::FlexDirection::Column,
50                flex_wrap: taffy::style::FlexWrap::Wrap,
51                align_items: Some(taffy::style::AlignItems::Center),
52                align_content: Some(taffy::style::AlignContent::Center),
53                justify_content: Some(taffy::style::JustifyContent::Center),
54                size: taffy::geometry::Size {
55                    width: taffy::style::Dimension::Length(700f32),
56                    height: taffy::style::Dimension::Length(500f32),
57                },
58                ..Default::default()
59            },
60            &[node0, node1, node2],
61        )
62        .unwrap();
63    taffy.compute_layout_with_measure(node, taffy::geometry::Size::MAX_CONTENT, crate::test_measure_function).unwrap();
64    println!("\nComputed tree:");
65    taffy.print_tree(node);
66    println!();
67    #[cfg_attr(not(feature = "content_size"), allow(unused_variables))]
68    let layout @ Layout { size, location, .. } = taffy.layout(node).unwrap();
69    assert_eq!(size.width, 700f32, "width of node {:?}. Expected {}. Actual {}", node, 700f32, size.width);
70    assert_eq!(size.height, 500f32, "height of node {:?}. Expected {}. Actual {}", node, 500f32, size.height);
71    assert_eq!(location.x, 0f32, "x of node {:?}. Expected {}. Actual {}", node, 0f32, location.x);
72    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node, 0f32, location.y);
73    #[cfg(feature = "content_size")]
74    assert_eq!(
75        layout.scroll_width(),
76        0f32,
77        "scroll_width of node {:?}. Expected {}. Actual {}",
78        node,
79        0f32,
80        layout.scroll_width()
81    );
82    #[cfg(feature = "content_size")]
83    assert_eq!(
84        layout.scroll_height(),
85        0f32,
86        "scroll_height of node {:?}. Expected {}. Actual {}",
87        node,
88        0f32,
89        layout.scroll_height()
90    );
91    #[cfg_attr(not(feature = "content_size"), allow(unused_variables))]
92    let layout @ Layout { size, location, .. } = taffy.layout(node0).unwrap();
93    assert_eq!(size.width, 100f32, "width of node {:?}. Expected {}. Actual {}", node0, 100f32, size.width);
94    assert_eq!(size.height, 180f32, "height of node {:?}. Expected {}. Actual {}", node0, 180f32, size.height);
95    assert_eq!(location.x, 300f32, "x of node {:?}. Expected {}. Actual {}", node0, 300f32, location.x);
96    assert_eq!(location.y, 0f32, "y of node {:?}. Expected {}. Actual {}", node0, 0f32, location.y);
97    #[cfg(feature = "content_size")]
98    assert_eq!(
99        layout.scroll_width(),
100        0f32,
101        "scroll_width of node {:?}. Expected {}. Actual {}",
102        node0,
103        0f32,
104        layout.scroll_width()
105    );
106    #[cfg(feature = "content_size")]
107    assert_eq!(
108        layout.scroll_height(),
109        0f32,
110        "scroll_height of node {:?}. Expected {}. Actual {}",
111        node0,
112        0f32,
113        layout.scroll_height()
114    );
115    #[cfg_attr(not(feature = "content_size"), allow(unused_variables))]
116    let layout @ Layout { size, location, .. } = taffy.layout(node1).unwrap();
117    assert_eq!(size.width, 200f32, "width of node {:?}. Expected {}. Actual {}", node1, 200f32, size.width);
118    assert_eq!(size.height, 180f32, "height of node {:?}. Expected {}. Actual {}", node1, 180f32, size.height);
119    assert_eq!(location.x, 250f32, "x of node {:?}. Expected {}. Actual {}", node1, 250f32, location.x);
120    assert_eq!(location.y, 200f32, "y of node {:?}. Expected {}. Actual {}", node1, 200f32, location.y);
121    #[cfg(feature = "content_size")]
122    assert_eq!(
123        layout.scroll_width(),
124        0f32,
125        "scroll_width of node {:?}. Expected {}. Actual {}",
126        node1,
127        0f32,
128        layout.scroll_width()
129    );
130    #[cfg(feature = "content_size")]
131    assert_eq!(
132        layout.scroll_height(),
133        0f32,
134        "scroll_height of node {:?}. Expected {}. Actual {}",
135        node1,
136        0f32,
137        layout.scroll_height()
138    );
139    #[cfg_attr(not(feature = "content_size"), allow(unused_variables))]
140    let layout @ Layout { size, location, .. } = taffy.layout(node2).unwrap();
141    assert_eq!(size.width, 100f32, "width of node {:?}. Expected {}. Actual {}", node2, 100f32, size.width);
142    assert_eq!(size.height, 100f32, "height of node {:?}. Expected {}. Actual {}", node2, 100f32, size.height);
143    assert_eq!(location.x, 300f32, "x of node {:?}. Expected {}. Actual {}", node2, 300f32, location.x);
144    assert_eq!(location.y, 400f32, "y of node {:?}. Expected {}. Actual {}", node2, 400f32, location.y);
145    #[cfg(feature = "content_size")]
146    assert_eq!(
147        layout.scroll_width(),
148        0f32,
149        "scroll_width of node {:?}. Expected {}. Actual {}",
150        node2,
151        0f32,
152        layout.scroll_width()
153    );
154    #[cfg(feature = "content_size")]
155    assert_eq!(
156        layout.scroll_height(),
157        0f32,
158        "scroll_height of node {:?}. Expected {}. Actual {}",
159        node2,
160        0f32,
161        layout.scroll_height()
162    );
163}