minicrossterm/examples/alternate_screen.rs
2019-04-13 14:44:31 +02:00

49 lines
1.3 KiB
Rust

extern crate crossterm;
use crossterm::{style, AlternateScreen, ClearType, Color, Crossterm};
use std::{thread, time, io};
fn print_wait_screen() -> io::Result<()> {
let crossterm = Crossterm::new();
let terminal = crossterm.terminal();
let cursor = crossterm.cursor();
terminal.clear(ClearType::All)?;
cursor.goto(0, 0)?;
cursor.hide()?;
terminal.write(
"Welcome to the wait screen.\n\
Please wait a few seconds until we arrive back at the main screen.\n\
Progress: ",
)?;
// print some progress example.
for i in 1..5 {
// print the current counter at the line of `Seconds to Go: {counter}`
cursor.goto(10, 2)?;
println!(
"{}",
style(format!("{} of the 5 items processed", i))
.with(Color::Red)
.on(Color::Blue)
);
// 1 second delay
thread::sleep(time::Duration::from_secs(1));
}
Ok(())
}
/// print wait screen on alternate screen, then switch back.
pub fn print_wait_screen_on_alternate_window() -> io::Result<()> {
if let Ok(_alternate) = AlternateScreen::to_alternate(false) {
print_wait_screen()?;
}
Ok(())
}
fn main() {
print_wait_screen_on_alternate_window().unwrap();
}