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//! # [Ratatui] `Block` example
//!
//! The latest version of this example is available in the [widget examples] folder in the
//! repository.
//!
//! Please note that the examples are designed to be run against the `main` branch of the Github
//! repository. This means that you may not be able to compile with the latest release version on
//! crates.io, or the one that you have installed locally.
//!
//! See the [examples readme] for more information on finding examples that match the version of the
//! library you are using.
//!
//! [Ratatui]: https://github.com/ratatui/ratatui
//! [widget examples]: https://github.com/ratatui/ratatui/blob/main/ratatui-widgets/examples
//! [examples readme]: https://github.com/ratatui/ratatui/blob/main/examples/README.md
use color_eyre::Result;
use crossterm::event;
use ratatui::Frame;
use ratatui::layout::{Constraint, Layout, Rect};
use ratatui::style::{Style, Stylize};
use ratatui::text::{Line, Span};
use ratatui::widgets::{Block, BorderType};
fn main() -> Result<()> {
color_eyre::install()?;
ratatui::run(|terminal| {
loop {
terminal.draw(render)?;
if event::read()?.is_key_press() {
break Ok(());
}
}
})
}
/// Render the UI with various blocks.
fn render(frame: &mut Frame) {
let vertical = Layout::vertical([Constraint::Length(1), Constraint::Fill(1)]).spacing(1);
let horizontal = Layout::horizontal([Constraint::Percentage(33); 3]).spacing(1);
let [top, main] = frame.area().layout(&vertical);
let [left, middle, right] = main.layout(&horizontal);
let title = Line::from_iter([
Span::from("Block Widget").bold(),
Span::from(" (Press 'q' to quit)"),
]);
frame.render_widget(title.centered(), top);
render_bordered_block(frame, left);
render_styled_block(frame, middle);
render_custom_bordered_block(frame, right);
}
/// Render a block with borders.
pub fn render_bordered_block(frame: &mut Frame, area: Rect) {
let block = Block::bordered().title("Bordered block");
frame.render_widget(block, area);
}
/// Render a styled block.
pub fn render_styled_block(frame: &mut Frame, area: Rect) {
let block = Block::bordered()
.style(Style::new().blue().on_black().bold().italic())
.title("Styled block");
frame.render_widget(block, area);
}
/// Render a block with custom borders.
pub fn render_custom_bordered_block(frame: &mut Frame, area: Rect) {
let block = Block::bordered()
.border_type(BorderType::Rounded)
.border_style(Style::new().red())
.title("Custom borders");
frame.render_widget(block, area);
}
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