102 lines
3.3 KiB
Rust
102 lines
3.3 KiB
Rust
extern crate crossterm;
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use crossterm::style::Color;
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use crossterm::cursor::cursor;
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use crossterm::screen::AlternateScreen;
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use crossterm::terminal::{self, ClearType};
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use crossterm::Context;
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use std::io::{stdout, Write};
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use std::rc::Rc;
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use std::{thread, time};
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fn print_wait_screen(context: Rc<Context>) {
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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(
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"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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);
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// print some progress example.
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for i in 1..5 {
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// print the current counter at the line of `Seconds to Go: {counter}`
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cursor
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.goto(10, 2)
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.print(terminal.paint(format!("{} of the 5 items processed", i)).with(Color::Red).on(Color::Blue));
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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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stdout().flush();
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}
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/// print wait screen on alternate screen, then switches back to mainscreen | demonstration.
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pub fn print_wait_screen_on_alternate_window(context: Rc<Context>) {
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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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write!(screen, "test");
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println!();
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// Print the wait screen.
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print_wait_screen(context.clone());
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} // <- switch back to main screen
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}
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/// some stress test switch from and to alternate screen | demonstration
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pub fn switch_between_main_and_alternate_screen() {
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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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}
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/// Switch to alternate screen using the `Context` of `Crossterm` | demonstration.
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pub fn create_alternate_screen_from_crossterm()
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{
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use crossterm::screen::*;
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use crossterm::Crossterm;
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let crossterm = Crossterm::new();
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{
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// move into alternate screen
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let alternate_screen = AlternateScreen::from(crossterm.context());
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// this will move the cursor and print `some text` on the alternate screen.
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crossterm.cursor().goto(10, 10).print("Some text");
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} // <- alternate screen ends here an will be switched back to main screen.
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// print "Some other text" on the mainscreen at x: 0, y: 10
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crossterm.cursor().goto(0,10).print("Some other text");
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}
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