From 2aa4a82499d4becd2284cdb482213d541b8804dd Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 16:29:10 +0200 Subject: Adding upstream version 86.0.1. Signed-off-by: Daniel Baumann --- third_party/rust/termion/examples/rainbow.rs | 60 ++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+) create mode 100644 third_party/rust/termion/examples/rainbow.rs (limited to 'third_party/rust/termion/examples/rainbow.rs') diff --git a/third_party/rust/termion/examples/rainbow.rs b/third_party/rust/termion/examples/rainbow.rs new file mode 100644 index 0000000000..4ee4000d01 --- /dev/null +++ b/third_party/rust/termion/examples/rainbow.rs @@ -0,0 +1,60 @@ +extern crate termion; + +use termion::event::Key; +use termion::input::TermRead; +use termion::raw::IntoRawMode; +use std::io::{Write, stdout, stdin}; + +fn rainbow(stdout: &mut W, blue: u8) { + write!(stdout, + "{}{}", + termion::cursor::Goto(1, 1), + termion::clear::All) + .unwrap(); + + for red in 0..32 { + let red = red * 8; + for green in 0..64 { + let green = green * 4; + write!(stdout, + "{} ", + termion::color::Bg(termion::color::Rgb(red, green, blue))) + .unwrap(); + } + write!(stdout, "\n\r").unwrap(); + } + + writeln!(stdout, "{}b = {}", termion::style::Reset, blue).unwrap(); +} + +fn main() { + let stdin = stdin(); + let mut stdout = stdout().into_raw_mode().unwrap(); + + writeln!(stdout, + "{}{}{}Use the up/down arrow keys to change the blue in the rainbow.", + termion::clear::All, + termion::cursor::Goto(1, 1), + termion::cursor::Hide) + .unwrap(); + + let mut blue = 172u8; + + for c in stdin.keys() { + match c.unwrap() { + Key::Up => { + blue = blue.saturating_add(4); + rainbow(&mut stdout, blue); + } + Key::Down => { + blue = blue.saturating_sub(4); + rainbow(&mut stdout, blue); + } + Key::Char('q') => break, + _ => {} + } + stdout.flush().unwrap(); + } + + write!(stdout, "{}", termion::cursor::Show).unwrap(); +} -- cgit v1.2.3