lcd-async 0.1.3

Async fork of mipidsi crate
Documentation 
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use crate::options::ColorInversion;

use super::DcsCommand;

/// Set Invert Mode
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
#[cfg_attr(feature = "defmt", derive(defmt::Format))]
pub struct SetInvertMode(ColorInversion);

impl SetInvertMode {
    /// Construct a new SetInvertMode DCS with the given value
    pub fn new(color_inversion: ColorInversion) -> Self {
        SetInvertMode(color_inversion)
    }
}

impl DcsCommand for SetInvertMode {
    fn instruction(&self) -> u8 {
        match self.0 {
            ColorInversion::Normal => 0x20,
            ColorInversion::Inverted => 0x21,
        }
    }

    fn fill_params_buf(&self, _buffer: &mut [u8]) -> usize {
        0
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn set_invert_mode_chooses_correct_instruction() {
        let ste = SetInvertMode(ColorInversion::Inverted);

        let mut buffer = [0u8; 0];
        assert_eq!(ste.instruction(), 0x21);
        assert_eq!(ste.fill_params_buf(&mut buffer), 0);
    }
}