lcd_async/dcs/
set_invert_mode.rs

1use crate::options::ColorInversion;
2
3use super::DcsCommand;
4
5/// Set Invert Mode
6#[derive(Debug, Clone, Copy, PartialEq, Eq)]
7pub struct SetInvertMode(ColorInversion);
8
9impl SetInvertMode {
10    /// Construct a new SetInvertMode DCS with the given value
11    pub fn new(color_inversion: ColorInversion) -> Self {
12        SetInvertMode(color_inversion)
13    }
14}
15
16impl DcsCommand for SetInvertMode {
17    fn instruction(&self) -> u8 {
18        match self.0 {
19            ColorInversion::Normal => 0x20,
20            ColorInversion::Inverted => 0x21,
21        }
22    }
23
24    fn fill_params_buf(&self, _buffer: &mut [u8]) -> usize {
25        0
26    }
27}
28
29#[cfg(test)]
30mod tests {
31    use super::*;
32
33    #[test]
34    fn set_invert_mode_chooses_correct_instruction() {
35        let ste = SetInvertMode(ColorInversion::Inverted);
36
37        let mut buffer = [0u8; 0];
38        assert_eq!(ste.instruction(), 0x21);
39        assert_eq!(ste.fill_params_buf(&mut buffer), 0);
40    }
41}
lcd_async/dcs/set_invert_mode.rs

lcd_async/dcs/
set_invert_mode.rs
