extern crate cursive;
use cursive::views::TextView;
use cursive::Cursive;
use cursive_multiplex::Mux;
fn main() {
let mut siv = Cursive::default();
let mut mux = Mux::new();
let root = mux
.add_right_of(TextView::new("Center"), mux.root().build().unwrap())
.expect("Center failed");
let _id = mux
.add_above(TextView::new("Up"), root)
.expect("Upper failed");
let _id = mux
.add_below(TextView::new("Down"), root)
.expect("Lower failed");
mux.remove_id(root).expect("remove failed");
siv.add_fullscreen_layer(mux);
siv.run();
}