offset/
offset.rs

1#[cfg(feature = "default")]
2extern crate sensehat_screen;
3
4#[cfg(feature = "default")]
5use sensehat_screen::Offset;
6#[cfg(feature = "default")]
7use sensehat_screen::{font_to_pixel_frame, FontCollection, PixelColor, PixelFrame, Screen};
8
9#[cfg(not(feature = "default"))]
10fn main() {
11    unimplemented!("This examples needs the 'default' features.");
12}
13#[cfg(feature = "default")]
14fn main() {
15    let mut screen = Screen::open("/dev/fb1").unwrap();
16    let fonts = FontCollection::new();
17
18    for &(sym, color) in &[('þ', PixelColor::CYAN), ('ß', PixelColor::WHITE.dim(0.5))] {
19        let font = fonts.get(sym).unwrap();
20        let symbol = font_to_pixel_frame(font.byte_array(), color);
21
22        // Starts with an empty screen, then the symbol slides from the left,
23        // reaching the offset = 0 position, which renders the entire symbol on
24        // the screen.
25        for i in 0..=8 {
26            screen.write_frame(&symbol.offset(Offset::left(8 - i)).frame_line());
27            ::std::thread::sleep(::std::time::Duration::from_millis(500));
28        }
29        // Slides the displayed symbol to the right until it disappears.
30        for i in 0..=8 {
31            screen.write_frame(&symbol.offset(Offset::right(i)).frame_line());
32            ::std::thread::sleep(::std::time::Duration::from_millis(500));
33        }
34
35        // Starts with an empty screen, then the symbol slides from the top,
36        // reaching the offset = 0 position, which renders the entire symbol on
37        // the screen.
38        for i in 0..=8 {
39            screen.write_frame(&symbol.offset(Offset::top(8 - i)).frame_line());
40            ::std::thread::sleep(::std::time::Duration::from_millis(500));
41        }
42        // Slides the displayed symbol to the bottom until it disappears.
43        for i in 0..=8 {
44            screen.write_frame(&symbol.offset(Offset::bottom(i)).frame_line());
45            ::std::thread::sleep(::std::time::Duration::from_millis(500));
46        }
47    }
48    screen.write_frame(&PixelFrame::new(&[PixelColor::BLACK; 64]).frame_line());
49}
offset/offset.rs

offset/
offset.rs
