Trait Headless

pub trait Headless {
    // Required methods
    fn new(default_font: Font, default_text_size: Pixels) -> Self;
    fn screenshot(
        &mut self,
        size: Size<u32>,
        scale_factor: f32,
        background_color: Color,
    ) -> Vec<u8>;
}

Available on crate feature advanced only.

A headless renderer is a renderer that can render offscreen without a window nor a compositor.

Required Methods

fn new(default_font: Font, default_text_size: Pixels) -> Self

Creates a new Headless renderer;

fn screenshot( &mut self, size: Size<u32>, scale_factor: f32, background_color: Color, ) -> Vec<u8>

Draws offscreen into a screenshot, returning a collection of bytes representing the rendered pixels in RGBA order.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl Headless for Renderer<Renderer, Renderer>

fn new( default_font: Font, default_text_size: Pixels, ) -> Renderer<Renderer, Renderer>

fn screenshot( &mut self, size: Size<u32>, scale_factor: f32, background_color: Color, ) -> Vec<u8>

impl Headless for Renderer

fn new(default_font: Font, default_text_size: Pixels) -> Renderer

fn screenshot( &mut self, size: Size<u32>, scale_factor: f32, background_color: Color, ) -> Vec<u8>

Implementors