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//! A window is an abstraction for the UI. Buffers (like [Threads]) draw "to" windows.
use std::io::Write;
use termion::{clear, color, cursor};
#[derive(Clone, Copy)]
pub struct Area {
pub x: u16,
pub y: u16,
pub w: u16,
pub h: u16,
}
pub enum Line {
Normal(String),
Highlight(String),
}
pub struct Window {
pub lines: Vec<Line>,
}
impl Window {
pub fn new() -> Self {
Self {
lines: Vec::new(),
}
}
pub fn draw<W: Write>(&mut self, out: &mut W, area: Area) -> Result<(), std::io::Error> {
let mut y = area.y;
let mut lines = self.lines.iter();
while y < area.h + 1 {
match lines.next() {
Some(line) => {
write!(out, "{}", cursor::Goto(area.x, y))?;
match line {
Line::Normal(s) => write!(out, "{}", s)?,
Line::Highlight(s) => write!(
out,
"{}{}{}",
color::Fg(color::Red),
s,
color::Fg(color::Reset),
)?,
}
y += 1;
}
None => break,
}
}
out.flush()?;
self.lines.clear();
Ok(())
}
}
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