77 lines
2.3 KiB
Rust
77 lines
2.3 KiB
Rust
extern crate crossterm;
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use crossterm::Context;
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use crossterm::screen::AlternateScreen;
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use crossterm::cursor::cursor;
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use crossterm::terminal::{self, ClearType};
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use std::io::{Write, stdout};
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use std::{time, thread};
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use std::rc::Rc;
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fn print_wait_screen(context: Rc<Context>)
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{
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let mut terminal = terminal::terminal(context.clone());
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terminal.clear(ClearType::All);
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let mut cursor = cursor(context.clone());
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cursor.goto(0,0);
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cursor.hide();
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terminal.write("Welcome to the wait screen.\n\
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Please wait a few seconds until we arrive back at the main screen.\n\
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Progress: ");
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// print some progress example.
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for i in 1..5
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{
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// print the current counter at the line of `Seconds to Go: {counter}`
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cursor.goto(10,2).print(format!("{} of the 5 items processed", i));
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// 1 second delay
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thread::sleep(time::Duration::from_secs(1));
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}
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}
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/// print wait screen on alternate screen, then swich back.
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pub fn print_wait_screen_on_alternate_window(context: Rc<Context>)
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{
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// create scope. If this scope ends the screen will be switched back to mainscreen.
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// because `AlternateScreen` switches back to main screen when switching back.
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{
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// create new alternate screen instance and switch to the alternate screen.
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let mut screen = AlternateScreen::from(context.clone());
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// Print the wait screen.
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print_wait_screen(context.clone());
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}
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}
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/// some stress test switch from and to alternate screen.
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pub fn switch_between_main_and_alternate_screen()
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{
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let context = Context::new();
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let mut cursor = cursor(context.clone());
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{
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// create new alternate screen instance and switch to the alternate screen.
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let mut screen = AlternateScreen::from(context.clone());
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cursor.goto(0,0);
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write!(screen, "we are at the alternate screen!");
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screen.flush();
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thread::sleep(time::Duration::from_secs(3));
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screen.to_main();
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write!(screen, "we are at the main screen!");
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screen.flush();
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thread::sleep(time::Duration::from_secs(3));
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screen.to_alternate();
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write!(screen, "we are at the alternate screen!");
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screen.flush();
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thread::sleep(time::Duration::from_secs(3));
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}
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println!("Whe are back at the main screen");
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} |