1use gpui::{
 2    App, Application, Bounds, Context, Hsla, Window, WindowBounds, WindowOptions, div, prelude::*,
 3    px, rgb, size,
 4};
 5
 6// https://en.wikipedia.org/wiki/Holy_grail_(web_design)
 7struct HolyGrailExample {}
 8
 9impl Render for HolyGrailExample {
10    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
11        let block = |color: Hsla| {
12            div()
13                .size_full()
14                .bg(color)
15                .border_1()
16                .border_dashed()
17                .rounded_md()
18                .border_color(gpui::white())
19                .items_center()
20        };
21
22        div()
23            .gap_1()
24            .grid()
25            .bg(rgb(0x505050))
26            .size(px(500.0))
27            .shadow_lg()
28            .border_1()
29            .size_full()
30            .grid_cols(5)
31            .grid_rows(5)
32            .child(
33                block(gpui::white())
34                    .row_span(1)
35                    .col_span_full()
36                    .child("Header"),
37            )
38            .child(
39                block(gpui::red())
40                    .col_span(1)
41                    .h_56()
42                    .child("Table of contents"),
43            )
44            .child(
45                block(gpui::green())
46                    .col_span(3)
47                    .row_span(3)
48                    .child("Content"),
49            )
50            .child(
51                block(gpui::blue())
52                    .col_span(1)
53                    .row_span(3)
54                    .child("AD :(")
55                    .text_color(gpui::white()),
56            )
57            .child(
58                block(gpui::black())
59                    .row_span(1)
60                    .col_span_full()
61                    .text_color(gpui::white())
62                    .child("Footer"),
63            )
64    }
65}
66
67fn main() {
68    Application::new().run(|cx: &mut App| {
69        let bounds = Bounds::centered(None, size(px(500.), px(500.0)), cx);
70        cx.open_window(
71            WindowOptions {
72                window_bounds: Some(WindowBounds::Windowed(bounds)),
73                ..Default::default()
74            },
75            |_, cx| cx.new(|_| HolyGrailExample {}),
76        )
77        .unwrap();
78        cx.activate(true);
79    });
80}