Struct ratatui::widgets::LineGauge

pub struct LineGauge<'a> { /* private fields */ }

A compact widget to display a task progress over a single line.

Examples:

LineGauge::default()
    .block(Block::default().borders(Borders::ALL).title("Progress"))
    .gauge_style(Style::default().fg(Color::White).bg(Color::Black).add_modifier(Modifier::BOLD))
    .line_set(symbols::line::THICK)
    .ratio(0.4);

Implementations

impl<'a> LineGauge<'a>

pub fn block(self, block: Block<'a>) -> Self

pub fn ratio(self, ratio: f64) -> Self

Examples found in repository

examples/inline.rs (line 244)

fn ui<B: Backend>(f: &mut Frame<B>, downloads: &Downloads) {
    let size = f.size();

    let block = Block::default()
        .title("Progress")
        .title_alignment(Alignment::Center);
    f.render_widget(block, size);

    let chunks = Layout::default()
        .constraints(vec![Constraint::Length(2), Constraint::Length(4)])
        .margin(1)
        .split(size);

    // total progress
    let done = NUM_DOWNLOADS - downloads.pending.len() - downloads.in_progress.len();
    let progress = LineGauge::default()
        .gauge_style(Style::default().fg(Color::Blue))
        .label(format!("{done}/{NUM_DOWNLOADS}"))
        .ratio(done as f64 / NUM_DOWNLOADS as f64);
    f.render_widget(progress, chunks[0]);

    let chunks = Layout::default()
        .direction(Direction::Horizontal)
        .constraints(vec![Constraint::Percentage(20), Constraint::Percentage(80)])
        .split(chunks[1]);

    // in progress downloads
    let items: Vec<ListItem> = downloads
        .in_progress
        .values()
        .map(|download| {
            ListItem::new(Line::from(vec![
                Span::raw(symbols::DOT),
                Span::styled(
                    format!(" download {:>2}", download.id),
                    Style::default()
                        .fg(Color::LightGreen)
                        .add_modifier(Modifier::BOLD),
                ),
                Span::raw(format!(
                    " ({}ms)",
                    download.started_at.elapsed().as_millis()
                )),
            ]))
        })
        .collect();
    let list = List::new(items);
    f.render_widget(list, chunks[0]);

    for (i, (_, download)) in downloads.in_progress.iter().enumerate() {
        let gauge = Gauge::default()
            .gauge_style(Style::default().fg(Color::Yellow))
            .ratio(download.progress / 100.0);
        if chunks[1].top().saturating_add(i as u16) > size.bottom() {
            continue;
        }
        f.render_widget(
            gauge,
            Rect {
                x: chunks[1].left(),
                y: chunks[1].top().saturating_add(i as u16),
                width: chunks[1].width,
                height: 1,
            },
        );
    }
}

pub fn line_set(self, set: Set) -> Self

pub fn label<T>(self, label: T) -> Selfwhere T: Into<Line<'a>>,

Examples found in repository

examples/inline.rs (line 243)

fn ui<B: Backend>(f: &mut Frame<B>, downloads: &Downloads) {
    let size = f.size();

    let block = Block::default()
        .title("Progress")
        .title_alignment(Alignment::Center);
    f.render_widget(block, size);

    let chunks = Layout::default()
        .constraints(vec![Constraint::Length(2), Constraint::Length(4)])
        .margin(1)
        .split(size);

    // total progress
    let done = NUM_DOWNLOADS - downloads.pending.len() - downloads.in_progress.len();
    let progress = LineGauge::default()
        .gauge_style(Style::default().fg(Color::Blue))
        .label(format!("{done}/{NUM_DOWNLOADS}"))
        .ratio(done as f64 / NUM_DOWNLOADS as f64);
    f.render_widget(progress, chunks[0]);

    let chunks = Layout::default()
        .direction(Direction::Horizontal)
        .constraints(vec![Constraint::Percentage(20), Constraint::Percentage(80)])
        .split(chunks[1]);

    // in progress downloads
    let items: Vec<ListItem> = downloads
        .in_progress
        .values()
        .map(|download| {
            ListItem::new(Line::from(vec![
                Span::raw(symbols::DOT),
                Span::styled(
                    format!(" download {:>2}", download.id),
                    Style::default()
                        .fg(Color::LightGreen)
                        .add_modifier(Modifier::BOLD),
                ),
                Span::raw(format!(
                    " ({}ms)",
                    download.started_at.elapsed().as_millis()
                )),
            ]))
        })
        .collect();
    let list = List::new(items);
    f.render_widget(list, chunks[0]);

    for (i, (_, download)) in downloads.in_progress.iter().enumerate() {
        let gauge = Gauge::default()
            .gauge_style(Style::default().fg(Color::Yellow))
            .ratio(download.progress / 100.0);
        if chunks[1].top().saturating_add(i as u16) > size.bottom() {
            continue;
        }
        f.render_widget(
            gauge,
            Rect {
                x: chunks[1].left(),
                y: chunks[1].top().saturating_add(i as u16),
                width: chunks[1].width,
                height: 1,
            },
        );
    }
}

pub fn style(self, style: Style) -> Self

pub fn gauge_style(self, style: Style) -> Self

Examples found in repository

examples/inline.rs (line 242)

fn ui<B: Backend>(f: &mut Frame<B>, downloads: &Downloads) {
    let size = f.size();

    let block = Block::default()
        .title("Progress")
        .title_alignment(Alignment::Center);
    f.render_widget(block, size);

    let chunks = Layout::default()
        .constraints(vec![Constraint::Length(2), Constraint::Length(4)])
        .margin(1)
        .split(size);

    // total progress
    let done = NUM_DOWNLOADS - downloads.pending.len() - downloads.in_progress.len();
    let progress = LineGauge::default()
        .gauge_style(Style::default().fg(Color::Blue))
        .label(format!("{done}/{NUM_DOWNLOADS}"))
        .ratio(done as f64 / NUM_DOWNLOADS as f64);
    f.render_widget(progress, chunks[0]);

    let chunks = Layout::default()
        .direction(Direction::Horizontal)
        .constraints(vec![Constraint::Percentage(20), Constraint::Percentage(80)])
        .split(chunks[1]);

    // in progress downloads
    let items: Vec<ListItem> = downloads
        .in_progress
        .values()
        .map(|download| {
            ListItem::new(Line::from(vec![
                Span::raw(symbols::DOT),
                Span::styled(
                    format!(" download {:>2}", download.id),
                    Style::default()
                        .fg(Color::LightGreen)
                        .add_modifier(Modifier::BOLD),
                ),
                Span::raw(format!(
                    " ({}ms)",
                    download.started_at.elapsed().as_millis()
                )),
            ]))
        })
        .collect();
    let list = List::new(items);
    f.render_widget(list, chunks[0]);

    for (i, (_, download)) in downloads.in_progress.iter().enumerate() {
        let gauge = Gauge::default()
            .gauge_style(Style::default().fg(Color::Yellow))
            .ratio(download.progress / 100.0);
        if chunks[1].top().saturating_add(i as u16) > size.bottom() {
            continue;
        }
        f.render_widget(
            gauge,
            Rect {
                x: chunks[1].left(),
                y: chunks[1].top().saturating_add(i as u16),
                width: chunks[1].width,
                height: 1,
            },
        );
    }
}

Trait Implementations

impl<'a> Default for LineGauge<'a>

fn default() -> Self

Returns the “default value” for a type.

impl<'a> Widget for LineGauge<'a>

fn render(self, area: Rect, buf: &mut Buffer)

Draws the current state of the widget in the given buffer. That is the only method required to implement a custom widget.