use gpui::{    div, prelude::*, px, size, App, AppContext, Bounds, ViewContext, WindowBounds, WindowOptions,}; struct HelloWorld {} impl Render for HelloWorld {    fn render(&mut self, _cx: &mut ViewContext<Self>) -> impl IntoElement {        let text = "The longest word 你好世界这段是中文，こんにちはこの段落は日本語です in any of the major English language dictionaries is pneumonoultramicroscopicsilicovolcanoconiosis, a word that refers to a lung disease contracted from the inhalation of very fine silica particles, specifically from a volcano; medically, it is the same as silicosis.";        div()            .id("page")            .size_full()            .flex()            .flex_col()            .p_2()            .gap_2()            .bg(gpui::white())            .child(                div()                    .flex()                    .flex_row()                    .gap_2()                    .child(                        div()                            .flex()                            .border_1()                            .border_color(gpui::red())                            .text_ellipsis()                            .child("longer text in flex 1"),                    )                    .child(                        div()                            .flex()                            .border_1()                            .border_color(gpui::red())                            .text_ellipsis()                            .child("short flex"),                    )                    .child(                        div()                            .overflow_hidden()                            .border_1()                            .border_color(gpui::red())                            .text_ellipsis()                            .w_full()                            .child("A short text in normal div"),                    ),            )            .child(                div()                    .text_xl()                    .overflow_hidden()                    .text_ellipsis()                    .border_1()                    .border_color(gpui::red())                    .child("ELLIPSIS: ".to_owned() + text),            )            .child(                div()                    .text_xl()                    .overflow_hidden()                    .truncate()                    .border_1()                    .border_color(gpui::green())                    .child("TRUNCATE: ".to_owned() + text),            )            .child(                div()                    .text_xl()                    .whitespace_nowrap()                    .overflow_hidden()                    .border_1()                    .border_color(gpui::blue())                    .child("NOWRAP: ".to_owned() + text),            )            .child(div().text_xl().w_full().child(text))    }} fn main() {    App::new().run(|cx: &mut AppContext| {        let bounds = Bounds::centered(None, size(px(600.0), px(480.0)), cx);        cx.open_window(            WindowOptions {                window_bounds: Some(WindowBounds::Windowed(bounds)),                ..Default::default()            },            |cx| cx.new_view(|_cx| HelloWorld {}),        )        .unwrap();    });}