Struct Screen 

pub struct Screen { /* private fields */ }

Implementations

impl Screen

pub fn find_port() -> Result<String, Error>

Automagically finds the port the screen is connected to. If the screen is not found, an empty string is returned. If the screen is found, the port name is returned.

pub fn new(port_name: String) -> Result<Screen, Error>

Creates a new Screen instance. Requires the port name as a parameter. It can be obtained by calling the find_port() function.

impl Screen

pub fn orientation( &mut self, orientation: Orientation, ) -> Result<(), ScreenError>

Sets the screens orientation

pub fn clear(&mut self) -> Result<(), ScreenError>

Clears the screen to white. Does not work correctly in landscape mode, switch to Portrait mode before using this function.

pub fn to_black(&mut self) -> Result<(), ScreenError>

Clears the screen to black. Does not work correctly in landscape mode, switch to Portrait mode before using this function.

pub fn brightness(&mut self, level: u8) -> Result<(), ScreenError>

Sets the brightness of the screen. Level must be between 0 and 255. 0 is the brightest, 255 is the darkest.

pub fn screen_off(&mut self) -> Result<(), ScreenError>

Turns the screen off. It will still be powered on, but the screen will be black. To turn the screen back on, use the screen_on() function. Retains the current image.

pub fn screen_on(&mut self) -> Result<(), ScreenError>

Turns the screen on. The screen will display the last image that was drawn.

pub fn draw( &mut self, img: ImageBuffer<Rgb<u8>, Vec<u8>>, ) -> Result<(), ScreenError>

Draws an ImageBuffer to the screen. The image must be 320x480 or 480x320. Although not checked, the orientation of the image should match the orientation of the screen. Otherwise the screen will still interpret the image as if it were in the wrong orientation, part of the image may be cut off and the screen will wrap around to the start in rendering.