Trait egui::app::Backend

pub trait Backend {
    fn cpu_usage(&self) -> Option<f32>;
    fn new_texture_srgba_premultiplied(
        &mut self, 
        size: (usize, usize), 
        pixels: &[Srgba]
    ) -> TextureId;

    fn web_info(&self) -> Option<WebInfo> { ... }
    fn seconds_since_midnight(&self) -> Option<f64> { ... }
    fn quit(&mut self) { ... }
}

Required methods

fn cpu_usage(&self) -> Option<f32>

Seconds of cpu usage (in seconds) of UI code on the previous frame. Zero if this is the first frame.

fn new_texture_srgba_premultiplied(
    &mut self,
    size: (usize, usize),
    pixels: &[Srgba]
) -> TextureId

Allocate a user texture (EXPERIMENTAL!)

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Provided methods

fn web_info(&self) -> Option<WebInfo>

If the app is running in a Web context, this returns information about the environment.

fn seconds_since_midnight(&self) -> Option<f64>

Local time. Used for the clock in the demo app.

fn quit(&mut self)

Signal the backend that we'd like to exit the app now. This does nothing for web apps.

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Implementors

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