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//! # [Ratatui] `Chart` 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::{Color, Stylize};
use ratatui::symbols::Marker;
use ratatui::text::{Line, Span};
use ratatui::widgets::{Axis, Chart, Dataset, GraphType};
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 a chart.
fn render(frame: &mut Frame) {
let layout = Layout::vertical([Constraint::Length(1), Constraint::Fill(1)]).spacing(1);
let [top, main] = frame.area().layout(&layout);
let title = Line::from_iter([
Span::from("Chart Widget").bold(),
Span::from(" (Press 'q' to quit)"),
]);
frame.render_widget(title.centered(), top);
render_chart(frame, main);
}
/// Render a chart going upward.
pub fn render_chart(frame: &mut Frame, area: Rect) {
let dataset = Dataset::default()
.name("Stonks")
.marker(Marker::Braille)
.graph_type(GraphType::Line)
.style(Color::Blue)
.data(&[
(0.0, 1.0),
(1.0, 3.0),
(2.0, 0.5),
(3.0, 2.0),
(4.0, 0.8),
(5.0, 4.0),
(6.0, 1.0),
(7.0, 6.0),
(8.0, 3.0),
(10.0, 10.0),
]);
let x_axis = Axis::default()
.title("Hustle".blue())
.bounds([0.0, 10.0])
.labels(["0%", "50%", "100%"]);
let y_axis = Axis::default()
.title("Profit".blue())
.bounds([0.0, 10.0])
.labels(["0", "5", "10"]);
let chart = Chart::new(vec![dataset]).x_axis(x_axis).y_axis(y_axis);
frame.render_widget(chart, area);
}
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