Trait gui::Renderable

pub trait Renderable: 'static + Debug {
    fn type_id(&self) -> TypeId;
    fn render(&self, renderer: &dyn Renderer, bbox: BBox, cap: &dyn Cap) -> BBox;
}

A trait representing a renderable object.

Required methods

fn type_id(&self) -> TypeId

Get the TypeId of self.

fn render(&self, renderer: &dyn Renderer, bbox: BBox, cap: &dyn Cap) -> BBox

Render the renderable object.

This method just forwards the call to the given Renderer, supplying a trait object of the actual widget. The renderer is advised to honor the given BBox and is free to inquire additional state using the supplied Cap.

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Methods

impl dyn Renderable

pub fn is<T>(&self) -> bool where
    T: Renderable, 

Check if the widget is of type T.

pub fn downcast_ref<T>(&self) -> Option<&T> where
    T: Renderable, 

Downcast the widget reference to type T.

pub fn downcast_mut<T>(&mut self) -> Option<&mut T> where
    T: Renderable, 

Downcast the widget reference to type T.

Implementors

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