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use ratatui::{layout::{Alignment, Rect}, style::Style, text::ToLine, widgets::Widget};
#[derive(Clone)]
pub struct StatusBar {
left: String,
left_style: Style,
middle: String,
middle_style: Style,
middle_alignment: Alignment,
right: String,
right_style: Style,
}
impl StatusBar {
pub fn new() -> Self {
Self {
left: String::new(),
left_style: Style::default(),
middle: String::new(),
middle_style: Style::default(),
middle_alignment: Alignment::Center,
right: String::new(),
right_style: Style::default(),
}
}
pub fn left<S>(mut self, text: S) -> Self
where
S: AsRef<str>,
{
self.left = text.as_ref().to_string();
self
}
pub fn middle<S>(mut self, text: S) -> Self
where
S: AsRef<str>,
{
self.middle = text.as_ref().to_string();
self
}
pub fn right<S>(mut self, text: S) -> Self
where
S: AsRef<str>,
{
self.right = text.as_ref().to_string();
self
}
pub fn left_style(mut self, style: Style) -> Self {
self.left_style = style;
self
}
pub fn middle_style(mut self, style: Style) -> Self {
self.left_style = style;
self
}
pub fn middle_alignment(mut self, alignment: Alignment) -> Self {
self.middle_alignment = alignment;
self
}
pub fn right_style(mut self, style: Style) -> Self {
self.right_style = style;
self
}
pub fn set_left<S>(&mut self, text: S)
where
S: AsRef<str>,
{
self.left = text.as_ref().to_string();
}
pub fn set_middle<S>(&mut self, text: S)
where
S: AsRef<str>,
{
self.middle = text.as_ref().to_string();
}
pub fn set_right<S>(&mut self, text: S)
where
S: AsRef<str>,
{
self.right = text.as_ref().to_string();
}
pub fn set_left_style(&mut self, style: Style) {
self.left_style = style;
}
pub fn set_middle_style(&mut self, style: Style) {
self.left_style = style;
}
pub fn set_right_style(&mut self, style: Style) {
self.right_style = style;
}
pub fn set_middle_alignment(&mut self, alignment: Alignment) {
self.middle_alignment = alignment;
}
pub fn area(&self, rect: Rect) -> Rect {
let mut inner = rect.clone();
inner.height -= 1;
inner
}
fn layout(&self, mut area: Rect) -> (Rect, Rect, Rect) {
area.y += area.height - 1;
area.height = 1;
let mut left = area.clone();
let mut right = area.clone();
let mut middle = area.clone();
left.width = self.left.len() as u16;
right.width = self.right.len() as u16;
right.x = area.x + area.width - right.width;
middle.x = left.x + left.width;
middle.width = area.width - left.width - right.width;
(left, middle, right)
}
}
impl Widget for &mut StatusBar {
fn render(self, area: Rect, buf: &mut ratatui::prelude::Buffer)
where
Self: Sized,
{
let (left, middle, right) = self.layout(area);
self.left
.to_line()
.left_aligned()
.style(self.left_style)
.render(left, buf);
self.middle
.to_line()
.alignment(self.middle_alignment)
.style(self.middle_style)
.render(middle, buf);
self.right
.to_line()
.right_aligned()
.style(self.right_style)
.render(right, buf);
}
}
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