Struct Menu 

pub struct Menu<T: Clone, S = ()> { /* private fields */ }

Implementations

impl<T: Clone, S> Menu<T, S>

pub fn up(&mut self)

pub fn down(&mut self)

pub fn set_index(&mut self, index: usize)

pub fn index(&self) -> usize

pub fn selected(&self) -> &T

pub fn choose(&mut self, ctx: Ctx<'_>, input: Input) -> Option<T>

Trait Implementations

impl<T: Clone, S> Component for Menu<T, S>

type State = S

The type of the external state of this component. This allows multiple different components to share the same piece of state. For components whose entire state is contained within the component itself, set this to ().

type Output = Option<T>

The type yielded by the component in response to an event. Typical components only yield meaningful results when certain conditions have been met (e.g. an item is chosen from a menu), thus it’s common for this type to be Option<_>.

fn render(&self, state: &S, ctx: Ctx<'_>, fb: &mut FrameBuffer)

Render the component to a frame buffer

fn update(&mut self, state: &mut S, ctx: Ctx<'_>, event: Event) -> Self::Output

Update the internal and extnal state of this component in response to an event, and yield a value.

fn size(&self, state: &S, ctx: Ctx<'_>) -> UCoord

Return the current size (in cells) of this component. This allows decorators to account for the size of the components they decorate (e.g. when drawing a border around a component, its size must be known).