1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25

use std::io;

use buffer::Cell;
use layout::Rect;

#[cfg(feature = "rustbox")]
mod rustbox;
#[cfg(feature = "rustbox")]
pub use self::rustbox::RustboxBackend;

#[cfg(feature = "termion")]
mod termion;
#[cfg(feature = "termion")]
pub use self::termion::{AlternateScreenBackend, MouseBackend, RawBackend, TermionBackend};

pub trait Backend {
    fn draw<'a, I>(&mut self, content: I) -> Result<(), io::Error>
    where
        I: Iterator<Item = (u16, u16, &'a Cell)>;
    fn hide_cursor(&mut self) -> Result<(), io::Error>;
    fn show_cursor(&mut self) -> Result<(), io::Error>;
    fn clear(&mut self) -> Result<(), io::Error>;
    fn size(&self) -> Result<Rect, io::Error>;
    fn flush(&mut self) -> Result<(), io::Error>;
}