mirror of
https://github.com/ratatui-org/ratatui
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8061813f32
Consensus is that explicit imports make it easier to understand the example code. This commit removes the prelude import from all examples and replaces it with the necessary imports, and expands other glob imports (widget::*, Constraint::*, KeyCode::*, etc.) everywhere else. Prelude glob imports not in examples are not covered by this PR. See https://github.com/ratatui-org/ratatui/issues/1150 for more details.
88 lines
2.4 KiB
Rust
88 lines
2.4 KiB
Rust
//! # [Ratatui] Logo example
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//!
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//! The latest version of this example is available in the [examples] folder in the repository.
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//!
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//! Please note that the examples are designed to be run against the `main` branch of the Github
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//! repository. This means that you may not be able to compile with the latest release version on
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//! crates.io, or the one that you have installed locally.
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//!
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//! See the [examples readme] for more information on finding examples that match the version of the
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//! library you are using.
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//!
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//! [Ratatui]: https://github.com/ratatui-org/ratatui
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//! [examples]: https://github.com/ratatui-org/ratatui/blob/main/examples
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//! [examples readme]: https://github.com/ratatui-org/ratatui/blob/main/examples/README.md
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use std::{
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io::{self, stdout},
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thread::sleep,
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time::Duration,
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};
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use indoc::indoc;
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use itertools::izip;
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use ratatui::{
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backend::{Backend, CrosstermBackend},
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crossterm::terminal::{disable_raw_mode, enable_raw_mode},
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terminal::{Terminal, Viewport},
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widgets::Paragraph,
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TerminalOptions,
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};
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/// A fun example of using half block characters to draw a logo
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#[allow(clippy::many_single_char_names)]
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fn logo() -> String {
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let r = indoc! {"
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▄▄▄
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█▄▄▀
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█ █
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"};
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let a = indoc! {"
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▄▄
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█▄▄█
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█ █
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"};
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let t = indoc! {"
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▄▄▄
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█
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█
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"};
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let u = indoc! {"
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▄ ▄
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█ █
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▀▄▄▀
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"};
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let i = indoc! {"
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▄
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█
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█
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"};
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izip!(r.lines(), a.lines(), t.lines(), u.lines(), i.lines())
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.map(|(r, a, t, u, i)| format!("{r:5}{a:5}{t:4}{a:5}{t:4}{u:5}{i:5}"))
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.collect::<Vec<_>>()
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.join("\n")
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}
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fn main() -> io::Result<()> {
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let mut terminal = init()?;
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terminal.draw(|frame| {
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frame.render_widget(Paragraph::new(logo()), frame.size());
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})?;
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sleep(Duration::from_secs(5));
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restore()?;
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println!();
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Ok(())
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}
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fn init() -> io::Result<Terminal<impl Backend>> {
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enable_raw_mode()?;
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let options = TerminalOptions {
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viewport: Viewport::Inline(3),
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};
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Terminal::with_options(CrosstermBackend::new(stdout()), options)
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}
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fn restore() -> io::Result<()> {
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disable_raw_mode()?;
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Ok(())
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}
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