Trait linfb::shape::Shape

pub trait Shape: Downcast {
    fn render(&self) -> Vec<Vec<Option<Color>>>;

    fn at(self, x: usize, y: usize) -> PositionedShape
    where
        Self: Sized + 'static,
    { ... }
}

Something you can draw on framebuffer

Required methods

fn render(&self) -> Vec<Vec<Option<Color>>>

Create a two-dimensional array of pixels. Every row must have the same length.

None means "no pixel at all" and semantically equivalent to (0, 0, 0, 0).into(), but can have better performance.

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Provided methods

fn at(self, x: usize, y: usize) -> PositionedShape where
    Self: Sized + 'static, 

Convert self into PositionedShape, saving position info. Needed for Compositor.

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Methods

impl dyn Shape

pub fn is<__T: Shape>(&self) -> bool

Returns true if the trait object wraps an object of type __T.

pub fn downcast<__T: Shape>(self: Box<Self>) -> Result<Box<__T>, Box<Self>>

Returns a boxed object from a boxed trait object if the underlying object is of type __T. Returns the original boxed trait if it isn't.

pub fn downcast_ref<__T: Shape>(&self) -> Option<&__T>

Returns a reference to the object within the trait object if it is of type __T, or None if it isn't.

pub fn downcast_mut<__T: Shape>(&mut self) -> Option<&mut __T>

Returns a mutable reference to the object within the trait object if it is of type __T, or None if it isn't.

Implementors

impl Shape for Caption

fn render(&self) -> Vec<Vec<Option<Color>>>

impl Shape for Image

fn render(&self) -> Vec<Vec<Option<Color>>>

impl Shape for Rectangle

fn render(&self) -> Vec<Vec<Option<Color>>>

impl Shape for Compositor

fn render(&self) -> Vec<Vec<Option<Color>>>

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